1 | #!/usr/bin/env python |
---|
2 | |
---|
3 | import unittest |
---|
4 | from math import sqrt, pi |
---|
5 | |
---|
6 | from config import g, epsilon |
---|
7 | from Numeric import allclose, array, zeros, ones, Float |
---|
8 | from shallow_water import * |
---|
9 | |
---|
10 | |
---|
11 | |
---|
12 | #Variable windfield implemented using functions |
---|
13 | def speed(t,x,y): |
---|
14 | """Large speeds halfway between center and edges |
---|
15 | Low speeds at center and edges |
---|
16 | """ |
---|
17 | |
---|
18 | from math import sqrt, exp, cos, pi |
---|
19 | |
---|
20 | N = len(x) |
---|
21 | s = 0*x #New array |
---|
22 | |
---|
23 | for k in range(N): |
---|
24 | |
---|
25 | r = sqrt(x[k]**2 + y[k]**2) |
---|
26 | |
---|
27 | factor = exp( -(r-0.15)**2 ) |
---|
28 | |
---|
29 | s[k] = 4000 * factor * (cos(t*2*pi/150) + 2) |
---|
30 | |
---|
31 | return s |
---|
32 | |
---|
33 | |
---|
34 | def scalar_func(t,x,y): |
---|
35 | """Function that returns a scalar. |
---|
36 | Used to test error message when Numeric array is expected |
---|
37 | """ |
---|
38 | |
---|
39 | return 17.7 |
---|
40 | |
---|
41 | |
---|
42 | def angle(t,x,y): |
---|
43 | """Rotating field |
---|
44 | """ |
---|
45 | from math import sqrt, atan, pi |
---|
46 | |
---|
47 | |
---|
48 | N = len(x) |
---|
49 | a = 0*x #New array |
---|
50 | |
---|
51 | for k in range(N): |
---|
52 | r = sqrt(x[k]**2 + y[k]**2) |
---|
53 | |
---|
54 | angle = atan(y[k]/x[k]) |
---|
55 | |
---|
56 | if x[k] < 0: |
---|
57 | angle+=pi #atan in ]-pi/2; pi/2[ |
---|
58 | |
---|
59 | #Take normal direction |
---|
60 | angle -= pi/2 |
---|
61 | |
---|
62 | #Ensure positive radians |
---|
63 | if angle < 0: |
---|
64 | angle += 2*pi |
---|
65 | |
---|
66 | a[k] = angle/pi*180 |
---|
67 | |
---|
68 | return a |
---|
69 | |
---|
70 | |
---|
71 | class TestCase(unittest.TestCase): |
---|
72 | def setUp(self): |
---|
73 | pass |
---|
74 | |
---|
75 | def tearDown(self): |
---|
76 | pass |
---|
77 | |
---|
78 | def test_rotate(self): |
---|
79 | normal = array([0.0,-1.0]) |
---|
80 | |
---|
81 | q = array([1.0,2.0,3.0]) |
---|
82 | |
---|
83 | r = rotate(q, normal, direction = 1) |
---|
84 | assert r[0] == 1 |
---|
85 | assert r[1] == -3 |
---|
86 | assert r[2] == 2 |
---|
87 | |
---|
88 | w = rotate(r, normal, direction = -1) |
---|
89 | assert allclose(w, q) |
---|
90 | |
---|
91 | |
---|
92 | |
---|
93 | def test_flux_zero_case(self): |
---|
94 | ql = zeros( 3, Float ) |
---|
95 | qr = zeros( 3, Float ) |
---|
96 | normal = zeros( 2, Float ) |
---|
97 | zl = zr = 0. |
---|
98 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
99 | |
---|
100 | assert allclose(flux, [0,0,0]) |
---|
101 | assert max_speed == 0. |
---|
102 | |
---|
103 | def test_flux_constants(self): |
---|
104 | w = 2.0 |
---|
105 | |
---|
106 | normal = array([1.,0]) |
---|
107 | ql = array([w, 0, 0]) |
---|
108 | qr = array([w, 0, 0]) |
---|
109 | zl = zr = 0. |
---|
110 | h = w - (zl+zr)/2 |
---|
111 | |
---|
112 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
113 | |
---|
114 | assert allclose(flux, [0., 0.5*g*h**2, 0.]) |
---|
115 | assert max_speed == sqrt(g*h) |
---|
116 | |
---|
117 | |
---|
118 | def test_flux1(self): |
---|
119 | #Use data from previous version of pyvolution |
---|
120 | normal = array([1.,0]) |
---|
121 | ql = array([-0.2, 2, 3]) |
---|
122 | qr = array([-0.2, 2, 3]) |
---|
123 | zl = zr = -0.5 |
---|
124 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
125 | |
---|
126 | assert allclose(flux, [2.,13.77433333, 20.]) |
---|
127 | assert allclose(max_speed, 8.38130948661) |
---|
128 | |
---|
129 | |
---|
130 | def test_flux2(self): |
---|
131 | #Use data from previous version of pyvolution |
---|
132 | normal = array([0., -1.]) |
---|
133 | ql = array([-0.075, 2, 3]) |
---|
134 | qr = array([-0.075, 2, 3]) |
---|
135 | zl = zr = -0.375 |
---|
136 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
137 | |
---|
138 | assert allclose(flux, [-3.,-20.0, -30.441]) |
---|
139 | assert allclose(max_speed, 11.7146428199) |
---|
140 | |
---|
141 | def test_flux3(self): |
---|
142 | #Use data from previous version of pyvolution |
---|
143 | normal = array([-sqrt(2)/2, sqrt(2)/2]) |
---|
144 | ql = array([-0.075, 2, 3]) |
---|
145 | qr = array([-0.075, 2, 3]) |
---|
146 | zl = zr = -0.375 |
---|
147 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
148 | |
---|
149 | assert allclose(flux, [sqrt(2)/2, 4.40221112, 7.3829019]) |
---|
150 | assert allclose(max_speed, 4.0716654239) |
---|
151 | |
---|
152 | def test_flux4(self): |
---|
153 | #Use data from previous version of pyvolution |
---|
154 | normal = array([-sqrt(2)/2, sqrt(2)/2]) |
---|
155 | ql = array([-0.34319278, 0.10254161, 0.07273855]) |
---|
156 | qr = array([-0.30683287, 0.1071986, 0.05930515]) |
---|
157 | zl = zr = -0.375 |
---|
158 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
159 | |
---|
160 | assert allclose(flux, [-0.04072676, -0.07096636, -0.01604364]) |
---|
161 | assert allclose(max_speed, 1.31414103233) |
---|
162 | |
---|
163 | def test_sw_domain_simple(self): |
---|
164 | a = [0.0, 0.0] |
---|
165 | b = [0.0, 2.0] |
---|
166 | c = [2.0,0.0] |
---|
167 | d = [0.0, 4.0] |
---|
168 | e = [2.0, 2.0] |
---|
169 | f = [4.0,0.0] |
---|
170 | |
---|
171 | points = [a, b, c, d, e, f] |
---|
172 | #bac, bce, ecf, dbe, daf, dae |
---|
173 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4], [3,0,5], [3,0,4]] |
---|
174 | |
---|
175 | domain = Domain(points, vertices) |
---|
176 | domain.check_integrity() |
---|
177 | |
---|
178 | for name in ['level', 'xmomentum', 'ymomentum', |
---|
179 | 'elevation', 'friction']: |
---|
180 | assert domain.quantities.has_key(name) |
---|
181 | |
---|
182 | |
---|
183 | assert domain.get_conserved_quantities(0, edge=1) == 0. |
---|
184 | |
---|
185 | |
---|
186 | def test_boundary_conditions(self): |
---|
187 | |
---|
188 | a = [0.0, 0.0] |
---|
189 | b = [0.0, 2.0] |
---|
190 | c = [2.0,0.0] |
---|
191 | d = [0.0, 4.0] |
---|
192 | e = [2.0, 2.0] |
---|
193 | f = [4.0,0.0] |
---|
194 | |
---|
195 | points = [a, b, c, d, e, f] |
---|
196 | #bac, bce, ecf, dbe |
---|
197 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
---|
198 | boundary = { (0, 0): 'Third', |
---|
199 | (0, 2): 'First', |
---|
200 | (2, 0): 'Second', |
---|
201 | (2, 1): 'Second', |
---|
202 | (3, 1): 'Second', |
---|
203 | (3, 2): 'Third'} |
---|
204 | |
---|
205 | |
---|
206 | domain = Domain(points, vertices, boundary) |
---|
207 | domain.check_integrity() |
---|
208 | |
---|
209 | |
---|
210 | domain.set_quantity('level', [[1,2,3], [5,5,5], |
---|
211 | [0,0,9], [-6, 3, 3]]) |
---|
212 | |
---|
213 | domain.set_quantity('xmomentum', [[1,1,1], [2,2,2], |
---|
214 | [3,3,3], [4, 4, 4]]) |
---|
215 | |
---|
216 | domain.set_quantity('ymomentum', [[10,10,10], [20,20,20], |
---|
217 | [30,30,30], [40, 40, 40]]) |
---|
218 | |
---|
219 | |
---|
220 | D = Dirichlet_boundary([5,2,1]) |
---|
221 | T = Transmissive_boundary(domain) |
---|
222 | R = Reflective_boundary(domain) |
---|
223 | domain.set_boundary( {'First': D, 'Second': T, 'Third': R}) |
---|
224 | |
---|
225 | domain.update_boundary() |
---|
226 | |
---|
227 | #Level |
---|
228 | assert domain.quantities['level'].boundary_values[0] == 2.5 |
---|
229 | assert domain.quantities['level'].boundary_values[0] ==\ |
---|
230 | domain.get_conserved_quantities(0, edge=0)[0] #Reflective (2.5) |
---|
231 | assert domain.quantities['level'].boundary_values[1] == 5. #Dirichlet |
---|
232 | assert domain.quantities['level'].boundary_values[2] ==\ |
---|
233 | domain.get_conserved_quantities(2, edge=0)[0] #Transmissive (4.5) |
---|
234 | assert domain.quantities['level'].boundary_values[3] ==\ |
---|
235 | domain.get_conserved_quantities(2, edge=1)[0] #Transmissive (4.5) |
---|
236 | assert domain.quantities['level'].boundary_values[4] ==\ |
---|
237 | domain.get_conserved_quantities(3, edge=1)[0] #Transmissive (-1.5) |
---|
238 | assert domain.quantities['level'].boundary_values[5] ==\ |
---|
239 | domain.get_conserved_quantities(3, edge=2)[0] #Reflective (-1.5) |
---|
240 | |
---|
241 | #Xmomentum |
---|
242 | assert domain.quantities['xmomentum'].boundary_values[0] == 1.0 #Reflective |
---|
243 | assert domain.quantities['xmomentum'].boundary_values[1] == 2. #Dirichlet |
---|
244 | assert domain.quantities['xmomentum'].boundary_values[2] ==\ |
---|
245 | domain.get_conserved_quantities(2, edge=0)[1] #Transmissive |
---|
246 | assert domain.quantities['xmomentum'].boundary_values[3] ==\ |
---|
247 | domain.get_conserved_quantities(2, edge=1)[1] #Transmissive |
---|
248 | assert domain.quantities['xmomentum'].boundary_values[4] ==\ |
---|
249 | domain.get_conserved_quantities(3, edge=1)[1] #Transmissive |
---|
250 | assert domain.quantities['xmomentum'].boundary_values[5] == -4.0 #Reflective |
---|
251 | |
---|
252 | #Ymomentum |
---|
253 | assert domain.quantities['ymomentum'].boundary_values[0] == -10.0 #Reflective |
---|
254 | assert domain.quantities['ymomentum'].boundary_values[1] == 1. #Dirichlet |
---|
255 | assert domain.quantities['ymomentum'].boundary_values[2] == 30. #Transmissive |
---|
256 | assert domain.quantities['ymomentum'].boundary_values[3] == 30. #Transmissive |
---|
257 | assert domain.quantities['ymomentum'].boundary_values[4] == 40. #Transmissive |
---|
258 | assert domain.quantities['ymomentum'].boundary_values[5] == 40. #Reflective |
---|
259 | |
---|
260 | |
---|
261 | def test_boundary_conditionsII(self): |
---|
262 | |
---|
263 | a = [0.0, 0.0] |
---|
264 | b = [0.0, 2.0] |
---|
265 | c = [2.0,0.0] |
---|
266 | d = [0.0, 4.0] |
---|
267 | e = [2.0, 2.0] |
---|
268 | f = [4.0,0.0] |
---|
269 | |
---|
270 | points = [a, b, c, d, e, f] |
---|
271 | #bac, bce, ecf, dbe |
---|
272 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4] ] |
---|
273 | boundary = { (0, 0): 'Third', |
---|
274 | (0, 2): 'First', |
---|
275 | (2, 0): 'Second', |
---|
276 | (2, 1): 'Second', |
---|
277 | (3, 1): 'Second', |
---|
278 | (3, 2): 'Third', |
---|
279 | (0, 1): 'Internal'} |
---|
280 | |
---|
281 | |
---|
282 | domain = Domain(points, vertices, boundary) |
---|
283 | domain.check_integrity() |
---|
284 | |
---|
285 | |
---|
286 | domain.set_quantity('level', [[1,2,3], [5,5,5], |
---|
287 | [0,0,9], [-6, 3, 3]]) |
---|
288 | |
---|
289 | domain.set_quantity('xmomentum', [[1,1,1], [2,2,2], |
---|
290 | [3,3,3], [4, 4, 4]]) |
---|
291 | |
---|
292 | domain.set_quantity('ymomentum', [[10,10,10], [20,20,20], |
---|
293 | [30,30,30], [40, 40, 40]]) |
---|
294 | |
---|
295 | |
---|
296 | D = Dirichlet_boundary([5,2,1]) |
---|
297 | T = Transmissive_boundary(domain) |
---|
298 | R = Reflective_boundary(domain) |
---|
299 | domain.set_boundary( {'First': D, 'Second': T, |
---|
300 | 'Third': R, 'Internal': None}) |
---|
301 | |
---|
302 | domain.update_boundary() |
---|
303 | domain.check_integrity() |
---|
304 | |
---|
305 | |
---|
306 | def test_compute_fluxes0(self): |
---|
307 | #Do a full triangle and check that fluxes cancel out for |
---|
308 | #the constant level case |
---|
309 | |
---|
310 | a = [0.0, 0.0] |
---|
311 | b = [0.0, 2.0] |
---|
312 | c = [2.0,0.0] |
---|
313 | d = [0.0, 4.0] |
---|
314 | e = [2.0, 2.0] |
---|
315 | f = [4.0,0.0] |
---|
316 | |
---|
317 | points = [a, b, c, d, e, f] |
---|
318 | #bac, bce, ecf, dbe |
---|
319 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
320 | |
---|
321 | domain = Domain(points, vertices) |
---|
322 | domain.set_quantity('level', [[2,2,2], [2,2,2], |
---|
323 | [2,2,2], [2,2,2]]) |
---|
324 | domain.check_integrity() |
---|
325 | |
---|
326 | zl=zr=0. #Assume flat bed |
---|
327 | |
---|
328 | #Flux across right edge of volume 1 |
---|
329 | normal = domain.get_normal(1,0) |
---|
330 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
---|
331 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
---|
332 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
333 | |
---|
334 | #Check that flux seen from other triangles is inverse |
---|
335 | tmp = qr; qr=ql; ql=tmp |
---|
336 | normal = domain.get_normal(2,2) |
---|
337 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
338 | assert allclose(flux + flux0, 0.) |
---|
339 | |
---|
340 | #Flux across upper edge of volume 1 |
---|
341 | normal = domain.get_normal(1,1) |
---|
342 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
---|
343 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
---|
344 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
345 | |
---|
346 | #Check that flux seen from other triangles is inverse |
---|
347 | tmp = qr; qr=ql; ql=tmp |
---|
348 | normal = domain.get_normal(3,0) |
---|
349 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
350 | assert allclose(flux + flux1, 0.) |
---|
351 | |
---|
352 | #Flux across lower left hypotenuse of volume 1 |
---|
353 | normal = domain.get_normal(1,2) |
---|
354 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
---|
355 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
---|
356 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
357 | |
---|
358 | #Check that flux seen from other triangles is inverse |
---|
359 | tmp = qr; qr=ql; ql=tmp |
---|
360 | normal = domain.get_normal(0,1) |
---|
361 | flux, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
362 | assert allclose(flux + flux2, 0.) |
---|
363 | |
---|
364 | |
---|
365 | #Scale by edgelengths, add up anc check that total flux is zero |
---|
366 | e0 = domain.edgelengths[1, 0] |
---|
367 | e1 = domain.edgelengths[1, 1] |
---|
368 | e2 = domain.edgelengths[1, 2] |
---|
369 | |
---|
370 | assert allclose(e0*flux0+e1*flux1+e2*flux2, 0.) |
---|
371 | |
---|
372 | #Now check that compute_flux yields zeros as well |
---|
373 | domain.compute_fluxes() |
---|
374 | |
---|
375 | for name in ['level', 'xmomentum', 'ymomentum']: |
---|
376 | #print name, domain.quantities[name].explicit_update |
---|
377 | assert allclose(domain.quantities[name].explicit_update[1], 0) |
---|
378 | |
---|
379 | |
---|
380 | |
---|
381 | def test_compute_fluxes1(self): |
---|
382 | #Use values from previous version |
---|
383 | |
---|
384 | a = [0.0, 0.0] |
---|
385 | b = [0.0, 2.0] |
---|
386 | c = [2.0,0.0] |
---|
387 | d = [0.0, 4.0] |
---|
388 | e = [2.0, 2.0] |
---|
389 | f = [4.0,0.0] |
---|
390 | |
---|
391 | points = [a, b, c, d, e, f] |
---|
392 | #bac, bce, ecf, dbe |
---|
393 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
394 | |
---|
395 | domain = Domain(points, vertices) |
---|
396 | val0 = 2.+2.0/3 |
---|
397 | val1 = 4.+4.0/3 |
---|
398 | val2 = 8.+2.0/3 |
---|
399 | val3 = 2.+8.0/3 |
---|
400 | |
---|
401 | domain.set_quantity('level', [[val0, val0, val0], [val1, val1, val1], |
---|
402 | [val2, val2, val2], [val3, val3, val3]]) |
---|
403 | domain.check_integrity() |
---|
404 | |
---|
405 | zl=zr=0. #Assume flat bed |
---|
406 | |
---|
407 | #Flux across right edge of volume 1 |
---|
408 | normal = domain.get_normal(1,0) |
---|
409 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
---|
410 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
---|
411 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
412 | assert allclose(flux0, [-15.3598804, 253.71111111, 0.]) |
---|
413 | assert allclose(max_speed, 9.21592824046) |
---|
414 | |
---|
415 | |
---|
416 | #Flux across upper edge of volume 1 |
---|
417 | normal = domain.get_normal(1,1) |
---|
418 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
---|
419 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
---|
420 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
421 | assert allclose(flux1, [2.4098563, 0., 123.04444444]) |
---|
422 | assert allclose(max_speed, 7.22956891292) |
---|
423 | |
---|
424 | #Flux across lower left hypotenuse of volume 1 |
---|
425 | normal = domain.get_normal(1,2) |
---|
426 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
---|
427 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
---|
428 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
429 | |
---|
430 | assert allclose(flux2, [9.63942522, -61.59685738, -61.59685738]) |
---|
431 | assert allclose(max_speed, 7.22956891292) |
---|
432 | |
---|
433 | #Scale, add up and check that compute_fluxes is correct for vol 1 |
---|
434 | e0 = domain.edgelengths[1, 0] |
---|
435 | e1 = domain.edgelengths[1, 1] |
---|
436 | e2 = domain.edgelengths[1, 2] |
---|
437 | |
---|
438 | total_flux = -(e0*flux0+e1*flux1+e2*flux2)/domain.areas[1] |
---|
439 | assert allclose(total_flux, [-0.68218178, -166.6, -35.93333333]) |
---|
440 | |
---|
441 | |
---|
442 | domain.compute_fluxes() |
---|
443 | |
---|
444 | #assert allclose(total_flux, domain.explicit_update[1,:]) |
---|
445 | for i, name in enumerate(['level', 'xmomentum', 'ymomentum']): |
---|
446 | assert allclose(total_flux[i], |
---|
447 | domain.quantities[name].explicit_update[1]) |
---|
448 | |
---|
449 | #assert allclose(domain.explicit_update, [ |
---|
450 | # [0., -69.68888889, -69.68888889], |
---|
451 | # [-0.68218178, -166.6, -35.93333333], |
---|
452 | # [-111.77316251, 69.68888889, 0.], |
---|
453 | # [-35.68522449, 0., 69.68888889]]) |
---|
454 | |
---|
455 | assert allclose(domain.quantities['level'].explicit_update, |
---|
456 | [0., -0.68218178, -111.77316251, -35.68522449]) |
---|
457 | assert allclose(domain.quantities['xmomentum'].explicit_update, |
---|
458 | [-69.68888889, -166.6, 69.68888889, 0]) |
---|
459 | assert allclose(domain.quantities['ymomentum'].explicit_update, |
---|
460 | [-69.68888889, -35.93333333, 0., 69.68888889]) |
---|
461 | |
---|
462 | |
---|
463 | #assert allclose(domain.quantities[name].explicit_update |
---|
464 | |
---|
465 | |
---|
466 | |
---|
467 | |
---|
468 | |
---|
469 | def test_compute_fluxes2(self): |
---|
470 | #Random values, incl momentum |
---|
471 | |
---|
472 | a = [0.0, 0.0] |
---|
473 | b = [0.0, 2.0] |
---|
474 | c = [2.0,0.0] |
---|
475 | d = [0.0, 4.0] |
---|
476 | e = [2.0, 2.0] |
---|
477 | f = [4.0,0.0] |
---|
478 | |
---|
479 | points = [a, b, c, d, e, f] |
---|
480 | #bac, bce, ecf, dbe |
---|
481 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
482 | |
---|
483 | domain = Domain(points, vertices) |
---|
484 | val0 = 2.+2.0/3 |
---|
485 | val1 = 4.+4.0/3 |
---|
486 | val2 = 8.+2.0/3 |
---|
487 | val3 = 2.+8.0/3 |
---|
488 | |
---|
489 | zl=zr=0 #Assume flat zero bed |
---|
490 | |
---|
491 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
492 | |
---|
493 | |
---|
494 | domain.set_quantity('level', [[val0, val0-1, val0-2], |
---|
495 | [val1, val1+1, val1], |
---|
496 | [val2, val2-2, val2], |
---|
497 | [val3-0.5, val3, val3]]) |
---|
498 | |
---|
499 | domain.set_quantity('xmomentum', |
---|
500 | [[1, 2, 3], [3, 4, 5], |
---|
501 | [1, -1, 0], [0, -2, 2]]) |
---|
502 | |
---|
503 | domain.set_quantity('ymomentum', |
---|
504 | [[1, -1, 0], [0, -3, 2], |
---|
505 | [0, 1, 0], [-1, 2, 2]]) |
---|
506 | |
---|
507 | |
---|
508 | domain.check_integrity() |
---|
509 | |
---|
510 | |
---|
511 | |
---|
512 | #Flux across right edge of volume 1 |
---|
513 | normal = domain.get_normal(1,0) |
---|
514 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
---|
515 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
---|
516 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
517 | |
---|
518 | #Flux across upper edge of volume 1 |
---|
519 | normal = domain.get_normal(1,1) |
---|
520 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
---|
521 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
---|
522 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
523 | |
---|
524 | #Flux across lower left hypotenuse of volume 1 |
---|
525 | normal = domain.get_normal(1,2) |
---|
526 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
---|
527 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
---|
528 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
529 | |
---|
530 | #Scale, add up and check that compute_fluxes is correct for vol 1 |
---|
531 | e0 = domain.edgelengths[1, 0] |
---|
532 | e1 = domain.edgelengths[1, 1] |
---|
533 | e2 = domain.edgelengths[1, 2] |
---|
534 | |
---|
535 | total_flux = -(e0*flux0+e1*flux1+e2*flux2)/domain.areas[1] |
---|
536 | |
---|
537 | |
---|
538 | domain.compute_fluxes() |
---|
539 | for i, name in enumerate(['level', 'xmomentum', 'ymomentum']): |
---|
540 | assert allclose(total_flux[i], |
---|
541 | domain.quantities[name].explicit_update[1]) |
---|
542 | #assert allclose(total_flux, domain.explicit_update[1,:]) |
---|
543 | |
---|
544 | |
---|
545 | def test_compute_fluxes3(self): |
---|
546 | #Random values, incl momentum |
---|
547 | |
---|
548 | a = [0.0, 0.0] |
---|
549 | b = [0.0, 2.0] |
---|
550 | c = [2.0,0.0] |
---|
551 | d = [0.0, 4.0] |
---|
552 | e = [2.0, 2.0] |
---|
553 | f = [4.0,0.0] |
---|
554 | |
---|
555 | points = [a, b, c, d, e, f] |
---|
556 | #bac, bce, ecf, dbe |
---|
557 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
558 | |
---|
559 | domain = Domain(points, vertices) |
---|
560 | val0 = 2.+2.0/3 |
---|
561 | val1 = 4.+4.0/3 |
---|
562 | val2 = 8.+2.0/3 |
---|
563 | val3 = 2.+8.0/3 |
---|
564 | |
---|
565 | zl=zr=-3.75 #Assume constant bed (must be less than level) |
---|
566 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
567 | |
---|
568 | |
---|
569 | domain.set_quantity('level', [[val0, val0-1, val0-2], |
---|
570 | [val1, val1+1, val1], |
---|
571 | [val2, val2-2, val2], |
---|
572 | [val3-0.5, val3, val3]]) |
---|
573 | |
---|
574 | domain.set_quantity('xmomentum', |
---|
575 | [[1, 2, 3], [3, 4, 5], |
---|
576 | [1, -1, 0], [0, -2, 2]]) |
---|
577 | |
---|
578 | domain.set_quantity('ymomentum', |
---|
579 | [[1, -1, 0], [0, -3, 2], |
---|
580 | [0, 1, 0], [-1, 2, 2]]) |
---|
581 | |
---|
582 | |
---|
583 | domain.check_integrity() |
---|
584 | |
---|
585 | |
---|
586 | |
---|
587 | #Flux across right edge of volume 1 |
---|
588 | normal = domain.get_normal(1,0) |
---|
589 | ql = domain.get_conserved_quantities(vol_id=1, edge=0) |
---|
590 | qr = domain.get_conserved_quantities(vol_id=2, edge=2) |
---|
591 | flux0, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
592 | |
---|
593 | #Flux across upper edge of volume 1 |
---|
594 | normal = domain.get_normal(1,1) |
---|
595 | ql = domain.get_conserved_quantities(vol_id=1, edge=1) |
---|
596 | qr = domain.get_conserved_quantities(vol_id=3, edge=0) |
---|
597 | flux1, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
598 | |
---|
599 | #Flux across lower left hypotenuse of volume 1 |
---|
600 | normal = domain.get_normal(1,2) |
---|
601 | ql = domain.get_conserved_quantities(vol_id=1, edge=2) |
---|
602 | qr = domain.get_conserved_quantities(vol_id=0, edge=1) |
---|
603 | flux2, max_speed = flux_function(normal, ql, qr, zl, zr) |
---|
604 | |
---|
605 | #Scale, add up and check that compute_fluxes is correct for vol 1 |
---|
606 | e0 = domain.edgelengths[1, 0] |
---|
607 | e1 = domain.edgelengths[1, 1] |
---|
608 | e2 = domain.edgelengths[1, 2] |
---|
609 | |
---|
610 | total_flux = -(e0*flux0+e1*flux1+e2*flux2)/domain.areas[1] |
---|
611 | |
---|
612 | domain.compute_fluxes() |
---|
613 | for i, name in enumerate(['level', 'xmomentum', 'ymomentum']): |
---|
614 | assert allclose(total_flux[i], |
---|
615 | domain.quantities[name].explicit_update[1]) |
---|
616 | |
---|
617 | |
---|
618 | |
---|
619 | def test_catching_negative_heights(self): |
---|
620 | |
---|
621 | a = [0.0, 0.0] |
---|
622 | b = [0.0, 2.0] |
---|
623 | c = [2.0,0.0] |
---|
624 | d = [0.0, 4.0] |
---|
625 | e = [2.0, 2.0] |
---|
626 | f = [4.0,0.0] |
---|
627 | |
---|
628 | points = [a, b, c, d, e, f] |
---|
629 | #bac, bce, ecf, dbe |
---|
630 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
631 | |
---|
632 | domain = Domain(points, vertices) |
---|
633 | val0 = 2.+2.0/3 |
---|
634 | val1 = 4.+4.0/3 |
---|
635 | val2 = 8.+2.0/3 |
---|
636 | val3 = 2.+8.0/3 |
---|
637 | |
---|
638 | zl=zr=4 #Too large |
---|
639 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
640 | domain.set_quantity('level', [[val0, val0-1, val0-2], |
---|
641 | [val1, val1+1, val1], |
---|
642 | [val2, val2-2, val2], |
---|
643 | [val3-0.5, val3, val3]]) |
---|
644 | |
---|
645 | #Should fail |
---|
646 | try: |
---|
647 | domain.check_integrity() |
---|
648 | except: |
---|
649 | pass |
---|
650 | |
---|
651 | ##################################################### |
---|
652 | def test_gravity(self): |
---|
653 | #Assuming no friction |
---|
654 | |
---|
655 | from config import g |
---|
656 | |
---|
657 | a = [0.0, 0.0] |
---|
658 | b = [0.0, 2.0] |
---|
659 | c = [2.0, 0.0] |
---|
660 | d = [0.0, 4.0] |
---|
661 | e = [2.0, 2.0] |
---|
662 | f = [4.0, 0.0] |
---|
663 | |
---|
664 | points = [a, b, c, d, e, f] |
---|
665 | #bac, bce, ecf, dbe |
---|
666 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
667 | |
---|
668 | domain = Domain(points, vertices) |
---|
669 | |
---|
670 | #Set up for a gradient of (3,0) at mid triangle |
---|
671 | def slope(x, y): |
---|
672 | return 3*x |
---|
673 | |
---|
674 | h = 0.1 |
---|
675 | def level(x,y): |
---|
676 | return slope(x,y)+h |
---|
677 | |
---|
678 | domain.set_quantity('elevation', slope) |
---|
679 | domain.set_quantity('level', level) |
---|
680 | |
---|
681 | for name in domain.conserved_quantities: |
---|
682 | assert allclose(domain.quantities[name].explicit_update, 0) |
---|
683 | assert allclose(domain.quantities[name].semi_implicit_update, 0) |
---|
684 | |
---|
685 | domain.compute_forcing_terms() |
---|
686 | |
---|
687 | assert allclose(domain.quantities['level'].explicit_update, 0) |
---|
688 | assert allclose(domain.quantities['xmomentum'].explicit_update, -g*h*3) |
---|
689 | assert allclose(domain.quantities['ymomentum'].explicit_update, 0) |
---|
690 | |
---|
691 | |
---|
692 | def test_manning_friction(self): |
---|
693 | from config import g |
---|
694 | |
---|
695 | a = [0.0, 0.0] |
---|
696 | b = [0.0, 2.0] |
---|
697 | c = [2.0, 0.0] |
---|
698 | d = [0.0, 4.0] |
---|
699 | e = [2.0, 2.0] |
---|
700 | f = [4.0, 0.0] |
---|
701 | |
---|
702 | points = [a, b, c, d, e, f] |
---|
703 | #bac, bce, ecf, dbe |
---|
704 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
705 | |
---|
706 | domain = Domain(points, vertices) |
---|
707 | |
---|
708 | #Set up for a gradient of (3,0) at mid triangle |
---|
709 | def slope(x, y): |
---|
710 | return 3*x |
---|
711 | |
---|
712 | h = 0.1 |
---|
713 | def level(x,y): |
---|
714 | return slope(x,y)+h |
---|
715 | |
---|
716 | eta = 0.07 |
---|
717 | domain.set_quantity('elevation', slope) |
---|
718 | domain.set_quantity('level', level) |
---|
719 | domain.set_quantity('friction', eta) |
---|
720 | |
---|
721 | for name in domain.conserved_quantities: |
---|
722 | assert allclose(domain.quantities[name].explicit_update, 0) |
---|
723 | assert allclose(domain.quantities[name].semi_implicit_update, 0) |
---|
724 | |
---|
725 | domain.compute_forcing_terms() |
---|
726 | |
---|
727 | assert allclose(domain.quantities['level'].explicit_update, 0) |
---|
728 | assert allclose(domain.quantities['xmomentum'].explicit_update, -g*h*3) |
---|
729 | assert allclose(domain.quantities['ymomentum'].explicit_update, 0) |
---|
730 | |
---|
731 | assert allclose(domain.quantities['level'].semi_implicit_update, 0) |
---|
732 | assert allclose(domain.quantities['xmomentum'].semi_implicit_update, 0) |
---|
733 | assert allclose(domain.quantities['ymomentum'].semi_implicit_update, 0) |
---|
734 | |
---|
735 | #Create some momentum for friction to work with |
---|
736 | domain.set_quantity('xmomentum', 1) |
---|
737 | S = -g * eta**2 / h**(7.0/3) |
---|
738 | |
---|
739 | domain.compute_forcing_terms() |
---|
740 | assert allclose(domain.quantities['level'].semi_implicit_update, 0) |
---|
741 | assert allclose(domain.quantities['xmomentum'].semi_implicit_update, S) |
---|
742 | assert allclose(domain.quantities['ymomentum'].semi_implicit_update, 0) |
---|
743 | |
---|
744 | #A more complex example |
---|
745 | domain.quantities['level'].semi_implicit_update[:] = 0.0 |
---|
746 | domain.quantities['xmomentum'].semi_implicit_update[:] = 0.0 |
---|
747 | domain.quantities['ymomentum'].semi_implicit_update[:] = 0.0 |
---|
748 | |
---|
749 | domain.set_quantity('xmomentum', 3) |
---|
750 | domain.set_quantity('ymomentum', 4) |
---|
751 | |
---|
752 | S = -g * eta**2 * 5 / h**(7.0/3) |
---|
753 | |
---|
754 | |
---|
755 | domain.compute_forcing_terms() |
---|
756 | |
---|
757 | assert allclose(domain.quantities['level'].semi_implicit_update, 0) |
---|
758 | assert allclose(domain.quantities['xmomentum'].semi_implicit_update, 3*S) |
---|
759 | assert allclose(domain.quantities['ymomentum'].semi_implicit_update, 4*S) |
---|
760 | |
---|
761 | def test_constant_wind_stress(self): |
---|
762 | from config import rho_a, rho_w, eta_w |
---|
763 | from math import pi, cos, sin, sqrt |
---|
764 | |
---|
765 | a = [0.0, 0.0] |
---|
766 | b = [0.0, 2.0] |
---|
767 | c = [2.0, 0.0] |
---|
768 | d = [0.0, 4.0] |
---|
769 | e = [2.0, 2.0] |
---|
770 | f = [4.0, 0.0] |
---|
771 | |
---|
772 | points = [a, b, c, d, e, f] |
---|
773 | #bac, bce, ecf, dbe |
---|
774 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
775 | |
---|
776 | |
---|
777 | domain = Domain(points, vertices) |
---|
778 | |
---|
779 | #Flat surface with 1m of water |
---|
780 | domain.set_quantity('elevation', 0) |
---|
781 | domain.set_quantity('level', 1.0) |
---|
782 | domain.set_quantity('friction', 0) |
---|
783 | |
---|
784 | Br = Reflective_boundary(domain) |
---|
785 | domain.set_boundary({'exterior': Br}) |
---|
786 | |
---|
787 | #Setup only one forcing term, constant wind stress |
---|
788 | s = 100 |
---|
789 | phi = 135 |
---|
790 | domain.forcing_terms = [] |
---|
791 | domain.forcing_terms.append( Wind_stress(s, phi) ) |
---|
792 | |
---|
793 | domain.compute_forcing_terms() |
---|
794 | |
---|
795 | |
---|
796 | const = eta_w*rho_a/rho_w |
---|
797 | |
---|
798 | #Convert to radians |
---|
799 | phi = phi*pi/180 |
---|
800 | |
---|
801 | #Compute velocity vector (u, v) |
---|
802 | u = s*cos(phi) |
---|
803 | v = s*sin(phi) |
---|
804 | |
---|
805 | #Compute wind stress |
---|
806 | S = const * sqrt(u**2 + v**2) |
---|
807 | |
---|
808 | assert allclose(domain.quantities['level'].explicit_update, 0) |
---|
809 | assert allclose(domain.quantities['xmomentum'].explicit_update, S*u) |
---|
810 | assert allclose(domain.quantities['ymomentum'].explicit_update, S*v) |
---|
811 | |
---|
812 | |
---|
813 | def test_variable_wind_stress(self): |
---|
814 | from config import rho_a, rho_w, eta_w |
---|
815 | from math import pi, cos, sin, sqrt |
---|
816 | |
---|
817 | a = [0.0, 0.0] |
---|
818 | b = [0.0, 2.0] |
---|
819 | c = [2.0, 0.0] |
---|
820 | d = [0.0, 4.0] |
---|
821 | e = [2.0, 2.0] |
---|
822 | f = [4.0, 0.0] |
---|
823 | |
---|
824 | points = [a, b, c, d, e, f] |
---|
825 | #bac, bce, ecf, dbe |
---|
826 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
827 | |
---|
828 | domain = Domain(points, vertices) |
---|
829 | |
---|
830 | #Flat surface with 1m of water |
---|
831 | domain.set_quantity('elevation', 0) |
---|
832 | domain.set_quantity('level', 1.0) |
---|
833 | domain.set_quantity('friction', 0) |
---|
834 | |
---|
835 | Br = Reflective_boundary(domain) |
---|
836 | domain.set_boundary({'exterior': Br}) |
---|
837 | |
---|
838 | |
---|
839 | domain.time = 5.54 #Take a random time (not zero) |
---|
840 | |
---|
841 | #Setup only one forcing term, constant wind stress |
---|
842 | s = 100 |
---|
843 | phi = 135 |
---|
844 | domain.forcing_terms = [] |
---|
845 | domain.forcing_terms.append( Wind_stress(s = speed, phi = angle) ) |
---|
846 | |
---|
847 | domain.compute_forcing_terms() |
---|
848 | |
---|
849 | #Compute reference solution |
---|
850 | const = eta_w*rho_a/rho_w |
---|
851 | |
---|
852 | N = domain.number_of_elements |
---|
853 | |
---|
854 | xc = domain.get_centroid_coordinates() |
---|
855 | t = domain.time |
---|
856 | |
---|
857 | x = xc[:,0] |
---|
858 | y = xc[:,1] |
---|
859 | s_vec = speed(t,x,y) |
---|
860 | phi_vec = angle(t,x,y) |
---|
861 | |
---|
862 | |
---|
863 | for k in range(N): |
---|
864 | #Convert to radians |
---|
865 | phi = phi_vec[k]*pi/180 |
---|
866 | s = s_vec[k] |
---|
867 | |
---|
868 | #Compute velocity vector (u, v) |
---|
869 | u = s*cos(phi) |
---|
870 | v = s*sin(phi) |
---|
871 | |
---|
872 | #Compute wind stress |
---|
873 | S = const * sqrt(u**2 + v**2) |
---|
874 | |
---|
875 | assert allclose(domain.quantities['level'].explicit_update[k], 0) |
---|
876 | assert allclose(domain.quantities['xmomentum'].explicit_update[k], S*u) |
---|
877 | assert allclose(domain.quantities['ymomentum'].explicit_update[k], S*v) |
---|
878 | |
---|
879 | |
---|
880 | |
---|
881 | |
---|
882 | def test_wind_stress_error_condition(self): |
---|
883 | """Test that windstress reacts properly when forcing functions |
---|
884 | are wrong - e.g. returns a scalar |
---|
885 | """ |
---|
886 | |
---|
887 | from config import rho_a, rho_w, eta_w |
---|
888 | from math import pi, cos, sin, sqrt |
---|
889 | |
---|
890 | a = [0.0, 0.0] |
---|
891 | b = [0.0, 2.0] |
---|
892 | c = [2.0, 0.0] |
---|
893 | d = [0.0, 4.0] |
---|
894 | e = [2.0, 2.0] |
---|
895 | f = [4.0, 0.0] |
---|
896 | |
---|
897 | points = [a, b, c, d, e, f] |
---|
898 | #bac, bce, ecf, dbe |
---|
899 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
900 | |
---|
901 | domain = Domain(points, vertices) |
---|
902 | |
---|
903 | #Flat surface with 1m of water |
---|
904 | domain.set_quantity('elevation', 0) |
---|
905 | domain.set_quantity('level', 1.0) |
---|
906 | domain.set_quantity('friction', 0) |
---|
907 | |
---|
908 | Br = Reflective_boundary(domain) |
---|
909 | domain.set_boundary({'exterior': Br}) |
---|
910 | |
---|
911 | |
---|
912 | domain.time = 5.54 #Take a random time (not zero) |
---|
913 | |
---|
914 | #Setup only one forcing term, bad func |
---|
915 | domain.forcing_terms = [] |
---|
916 | |
---|
917 | try: |
---|
918 | domain.forcing_terms.append(Wind_stress(s = scalar_func, |
---|
919 | phi = angle)) |
---|
920 | except AssertionError: |
---|
921 | pass |
---|
922 | else: |
---|
923 | msg = 'Should have raised exception' |
---|
924 | raise msg |
---|
925 | |
---|
926 | |
---|
927 | try: |
---|
928 | domain.forcing_terms.append(Wind_stress(s = speed, |
---|
929 | phi = scalar_func)) |
---|
930 | except AssertionError: |
---|
931 | pass |
---|
932 | else: |
---|
933 | msg = 'Should have raised exception' |
---|
934 | raise msg |
---|
935 | |
---|
936 | try: |
---|
937 | domain.forcing_terms.append(Wind_stress(s = speed, |
---|
938 | phi = 'xx')) |
---|
939 | except: |
---|
940 | pass |
---|
941 | else: |
---|
942 | msg = 'Should have raised exception' |
---|
943 | raise msg |
---|
944 | |
---|
945 | |
---|
946 | ##################################################### |
---|
947 | def test_first_order_extrapolator_const_z(self): |
---|
948 | |
---|
949 | a = [0.0, 0.0] |
---|
950 | b = [0.0, 2.0] |
---|
951 | c = [2.0, 0.0] |
---|
952 | d = [0.0, 4.0] |
---|
953 | e = [2.0, 2.0] |
---|
954 | f = [4.0, 0.0] |
---|
955 | |
---|
956 | points = [a, b, c, d, e, f] |
---|
957 | #bac, bce, ecf, dbe |
---|
958 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
959 | |
---|
960 | domain = Domain(points, vertices) |
---|
961 | val0 = 2.+2.0/3 |
---|
962 | val1 = 4.+4.0/3 |
---|
963 | val2 = 8.+2.0/3 |
---|
964 | val3 = 2.+8.0/3 |
---|
965 | |
---|
966 | zl=zr=-3.75 #Assume constant bed (must be less than level) |
---|
967 | domain.set_quantity('elevation', zl*ones( (4,3) )) |
---|
968 | domain.set_quantity('level', [[val0, val0-1, val0-2], |
---|
969 | [val1, val1+1, val1], |
---|
970 | [val2, val2-2, val2], |
---|
971 | [val3-0.5, val3, val3]]) |
---|
972 | |
---|
973 | |
---|
974 | |
---|
975 | domain.order = 1 |
---|
976 | domain.distribute_to_vertices_and_edges() |
---|
977 | |
---|
978 | #Check that centroid values were distributed to vertices |
---|
979 | C = domain.quantities['level'].centroid_values |
---|
980 | for i in range(3): |
---|
981 | assert allclose( domain.quantities['level'].vertex_values[:,i], C) |
---|
982 | |
---|
983 | |
---|
984 | def test_first_order_limiter_variable_z(self): |
---|
985 | #Check that first order limiter follows bed_slope |
---|
986 | from Numeric import alltrue, greater_equal |
---|
987 | from config import epsilon |
---|
988 | |
---|
989 | a = [0.0, 0.0] |
---|
990 | b = [0.0, 2.0] |
---|
991 | c = [2.0,0.0] |
---|
992 | d = [0.0, 4.0] |
---|
993 | e = [2.0, 2.0] |
---|
994 | f = [4.0,0.0] |
---|
995 | |
---|
996 | points = [a, b, c, d, e, f] |
---|
997 | #bac, bce, ecf, dbe |
---|
998 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
999 | |
---|
1000 | domain = Domain(points, vertices) |
---|
1001 | val0 = 2.+2.0/3 |
---|
1002 | val1 = 4.+4.0/3 |
---|
1003 | val2 = 8.+2.0/3 |
---|
1004 | val3 = 2.+8.0/3 |
---|
1005 | |
---|
1006 | domain.set_quantity('elevation', [[0,0,0], [6,0,0], |
---|
1007 | [6,6,6], [6,6,6]]) |
---|
1008 | domain.set_quantity('level', [[val0, val0, val0], |
---|
1009 | [val1, val1, val1], |
---|
1010 | [val2, val2, val2], |
---|
1011 | [val3, val3, val3]]) |
---|
1012 | |
---|
1013 | E = domain.quantities['elevation'].vertex_values |
---|
1014 | L = domain.quantities['level'].vertex_values |
---|
1015 | |
---|
1016 | |
---|
1017 | #Check that some levels are not above elevation (within eps) |
---|
1018 | #- so that the limiter has something to work with |
---|
1019 | assert not alltrue(alltrue(greater_equal(L,E-epsilon))) |
---|
1020 | |
---|
1021 | domain.order = 1 |
---|
1022 | domain.distribute_to_vertices_and_edges() |
---|
1023 | |
---|
1024 | #Check that all levels are above elevation (within eps) |
---|
1025 | assert alltrue(alltrue(greater_equal(L,E-epsilon))) |
---|
1026 | |
---|
1027 | |
---|
1028 | ##################################################### |
---|
1029 | def test_distribute_basic(self): |
---|
1030 | #Using test data generated by pyvolution-2 |
---|
1031 | #Assuming no friction and flat bed (0.0) |
---|
1032 | |
---|
1033 | a = [0.0, 0.0] |
---|
1034 | b = [0.0, 2.0] |
---|
1035 | c = [2.0, 0.0] |
---|
1036 | d = [0.0, 4.0] |
---|
1037 | e = [2.0, 2.0] |
---|
1038 | f = [4.0, 0.0] |
---|
1039 | |
---|
1040 | points = [a, b, c, d, e, f] |
---|
1041 | #bac, bce, ecf, dbe |
---|
1042 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
1043 | |
---|
1044 | domain = Domain(points, vertices) |
---|
1045 | |
---|
1046 | val0 = 2. |
---|
1047 | val1 = 4. |
---|
1048 | val2 = 8. |
---|
1049 | val3 = 2. |
---|
1050 | |
---|
1051 | domain.set_quantity('level', [val0, val1, val2, val3], 'centroids') |
---|
1052 | L = domain.quantities['level'].vertex_values |
---|
1053 | |
---|
1054 | #First order |
---|
1055 | domain.order = 1 |
---|
1056 | domain.distribute_to_vertices_and_edges() |
---|
1057 | assert allclose(L[1], val1) |
---|
1058 | |
---|
1059 | #Second order |
---|
1060 | domain.order = 2 |
---|
1061 | domain.distribute_to_vertices_and_edges() |
---|
1062 | assert allclose(L[1], [2.2, 4.9, 4.9]) |
---|
1063 | |
---|
1064 | |
---|
1065 | |
---|
1066 | def test_distribute_away_from_bed(self): |
---|
1067 | #Using test data generated by pyvolution-2 |
---|
1068 | #Assuming no friction and flat bed (0.0) |
---|
1069 | |
---|
1070 | a = [0.0, 0.0] |
---|
1071 | b = [0.0, 2.0] |
---|
1072 | c = [2.0, 0.0] |
---|
1073 | d = [0.0, 4.0] |
---|
1074 | e = [2.0, 2.0] |
---|
1075 | f = [4.0, 0.0] |
---|
1076 | |
---|
1077 | points = [a, b, c, d, e, f] |
---|
1078 | #bac, bce, ecf, dbe |
---|
1079 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
1080 | |
---|
1081 | domain = Domain(points, vertices) |
---|
1082 | L = domain.quantities['level'].vertex_values |
---|
1083 | |
---|
1084 | def level(x,y): |
---|
1085 | return x**2 |
---|
1086 | |
---|
1087 | domain.set_quantity('level', level, 'centroids') |
---|
1088 | |
---|
1089 | a, b = domain.quantities['level'].compute_gradients() |
---|
1090 | assert allclose(a[1], 3.33333334) |
---|
1091 | assert allclose(b[1], 0.0) |
---|
1092 | |
---|
1093 | domain.order = 1 |
---|
1094 | domain.distribute_to_vertices_and_edges() |
---|
1095 | assert allclose(L[1], 1.77777778) |
---|
1096 | |
---|
1097 | domain.order = 2 |
---|
1098 | domain.distribute_to_vertices_and_edges() |
---|
1099 | assert allclose(L[1], [0.57777777, 2.37777778, 2.37777778]) |
---|
1100 | |
---|
1101 | |
---|
1102 | |
---|
1103 | def test_distribute_away_from_bed1(self): |
---|
1104 | #Using test data generated by pyvolution-2 |
---|
1105 | #Assuming no friction and flat bed (0.0) |
---|
1106 | |
---|
1107 | a = [0.0, 0.0] |
---|
1108 | b = [0.0, 2.0] |
---|
1109 | c = [2.0, 0.0] |
---|
1110 | d = [0.0, 4.0] |
---|
1111 | e = [2.0, 2.0] |
---|
1112 | f = [4.0, 0.0] |
---|
1113 | |
---|
1114 | points = [a, b, c, d, e, f] |
---|
1115 | #bac, bce, ecf, dbe |
---|
1116 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
1117 | |
---|
1118 | domain = Domain(points, vertices) |
---|
1119 | L = domain.quantities['level'].vertex_values |
---|
1120 | |
---|
1121 | def level(x,y): |
---|
1122 | return x**4+y**2 |
---|
1123 | |
---|
1124 | domain.set_quantity('level', level, 'centroids') |
---|
1125 | #print domain.quantities['level'].centroid_values |
---|
1126 | |
---|
1127 | a, b = domain.quantities['level'].compute_gradients() |
---|
1128 | assert allclose(a[1], 25.18518519) |
---|
1129 | assert allclose(b[1], 3.33333333) |
---|
1130 | |
---|
1131 | domain.order = 1 |
---|
1132 | domain.distribute_to_vertices_and_edges() |
---|
1133 | assert allclose(L[1], 4.9382716) |
---|
1134 | |
---|
1135 | domain.order = 2 |
---|
1136 | domain.distribute_to_vertices_and_edges() |
---|
1137 | assert allclose(L[1], [1.07160494, 6.46058131, 7.28262855]) |
---|
1138 | |
---|
1139 | |
---|
1140 | |
---|
1141 | def test_distribute_near_bed(self): |
---|
1142 | #Using test data generated by pyvolution-2 |
---|
1143 | #Assuming no friction and flat bed (0.0) |
---|
1144 | |
---|
1145 | a = [0.0, 0.0] |
---|
1146 | b = [0.0, 2.0] |
---|
1147 | c = [2.0, 0.0] |
---|
1148 | d = [0.0, 4.0] |
---|
1149 | e = [2.0, 2.0] |
---|
1150 | f = [4.0, 0.0] |
---|
1151 | |
---|
1152 | points = [a, b, c, d, e, f] |
---|
1153 | #bac, bce, ecf, dbe |
---|
1154 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
1155 | |
---|
1156 | domain = Domain(points, vertices) |
---|
1157 | |
---|
1158 | |
---|
1159 | #Set up for a gradient of (3,0) at mid triangle |
---|
1160 | def slope(x, y): |
---|
1161 | return 10*x |
---|
1162 | |
---|
1163 | h = 0.1 |
---|
1164 | def level(x,y): |
---|
1165 | return slope(x,y)+h |
---|
1166 | |
---|
1167 | domain.set_quantity('elevation', slope) |
---|
1168 | domain.set_quantity('level', level, 'centroids') |
---|
1169 | |
---|
1170 | #print domain.quantities['elevation'].centroid_values |
---|
1171 | #print domain.quantities['level'].centroid_values |
---|
1172 | |
---|
1173 | E = domain.quantities['elevation'].vertex_values |
---|
1174 | L = domain.quantities['level'].vertex_values |
---|
1175 | |
---|
1176 | #print E |
---|
1177 | domain.order = 1 |
---|
1178 | domain.distribute_to_vertices_and_edges() |
---|
1179 | ##assert allclose(L[1], [0.19999999, 20.05, 20.05]) |
---|
1180 | assert allclose(L[1], [0.1, 20.1, 20.1]) |
---|
1181 | |
---|
1182 | domain.order = 2 |
---|
1183 | domain.distribute_to_vertices_and_edges() |
---|
1184 | assert allclose(L[1], [0.1, 20.1, 20.1]) |
---|
1185 | |
---|
1186 | def test_distribute_near_bed1(self): |
---|
1187 | #Using test data generated by pyvolution-2 |
---|
1188 | #Assuming no friction and flat bed (0.0) |
---|
1189 | |
---|
1190 | a = [0.0, 0.0] |
---|
1191 | b = [0.0, 2.0] |
---|
1192 | c = [2.0, 0.0] |
---|
1193 | d = [0.0, 4.0] |
---|
1194 | e = [2.0, 2.0] |
---|
1195 | f = [4.0, 0.0] |
---|
1196 | |
---|
1197 | points = [a, b, c, d, e, f] |
---|
1198 | #bac, bce, ecf, dbe |
---|
1199 | vertices = [ [1,0,2], [1,2,4], [4,2,5], [3,1,4]] |
---|
1200 | |
---|
1201 | domain = Domain(points, vertices) |
---|
1202 | |
---|
1203 | |
---|
1204 | #Set up for a gradient of (3,0) at mid triangle |
---|
1205 | def slope(x, y): |
---|
1206 | return x**4+y**2 |
---|
1207 | |
---|
1208 | h = 0.1 |
---|
1209 | def level(x,y): |
---|
1210 | return slope(x,y)+h |
---|
1211 | |
---|
1212 | domain.set_quantity('elevation', slope) |
---|
1213 | domain.set_quantity('level', level) |
---|
1214 | |
---|
1215 | #print domain.quantities['elevation'].centroid_values |
---|
1216 | #print domain.quantities['level'].centroid_values |
---|
1217 | |
---|
1218 | E = domain.quantities['elevation'].vertex_values |
---|
1219 | L = domain.quantities['level'].vertex_values |
---|
1220 | |
---|
1221 | #print E |
---|
1222 | domain.order = 1 |
---|
1223 | domain.distribute_to_vertices_and_edges() |
---|
1224 | ##assert allclose(L[1], [4.19999999, 16.07142857, 20.02857143]) |
---|
1225 | assert allclose(L[1], [4.1, 16.1, 20.1]) |
---|
1226 | |
---|
1227 | domain.order = 2 |
---|
1228 | domain.distribute_to_vertices_and_edges() |
---|
1229 | assert allclose(L[1], [4.1, 16.1, 20.1]) |
---|
1230 | |
---|
1231 | |
---|
1232 | |
---|
1233 | def test_second_order_distribute_real_data(self): |
---|
1234 | #Using test data generated by pyvolution-2 |
---|
1235 | #Assuming no friction and flat bed (0.0) |
---|
1236 | |
---|
1237 | a = [0.0, 0.0] |
---|
1238 | b = [0.0, 1.0/5] |
---|
1239 | c = [0.0, 2.0/5] |
---|
1240 | d = [1.0/5, 0.0] |
---|
1241 | e = [1.0/5, 1.0/5] |
---|
1242 | f = [1.0/5, 2.0/5] |
---|
1243 | g = [2.0/5, 2.0/5] |
---|
1244 | |
---|
1245 | points = [a, b, c, d, e, f, g] |
---|
1246 | #bae, efb, cbf, feg |
---|
1247 | vertices = [ [1,0,4], [4,5,1], [2,1,5], [5,4,6]] |
---|
1248 | |
---|
1249 | domain = Domain(points, vertices) |
---|
1250 | |
---|
1251 | def slope(x, y): |
---|
1252 | return -x/3 |
---|
1253 | |
---|
1254 | domain.set_quantity('elevation', slope) |
---|
1255 | domain.set_quantity('level', |
---|
1256 | [0.01298164, 0.00365611, 0.01440365, -0.0381856437096], |
---|
1257 | 'centroids') |
---|
1258 | domain.set_quantity('xmomentum', |
---|
1259 | [0.00670439, 0.01263789, 0.00647805, 0.0178180740668], |
---|
1260 | 'centroids') |
---|
1261 | domain.set_quantity('ymomentum', |
---|
1262 | [-7.23510980e-004, -6.30413883e-005, 6.30413883e-005, 0.000200907255866], |
---|
1263 | 'centroids') |
---|
1264 | |
---|
1265 | E = domain.quantities['elevation'].vertex_values |
---|
1266 | L = domain.quantities['level'].vertex_values |
---|
1267 | X = domain.quantities['xmomentum'].vertex_values |
---|
1268 | Y = domain.quantities['ymomentum'].vertex_values |
---|
1269 | |
---|
1270 | #print E |
---|
1271 | domain.order = 2 |
---|
1272 | domain.distribute_to_vertices_and_edges() |
---|
1273 | |
---|
1274 | #print L[1,:] |
---|
1275 | #print X[1,:] |
---|
1276 | #print Y[1,:] |
---|
1277 | |
---|
1278 | assert allclose(L[1,:], [-0.00825735775384, -0.00801881482869, 0.0272445025825]) |
---|
1279 | assert allclose(X[1,:], [0.0143507718962, 0.0142502147066, 0.00931268339717]) |
---|
1280 | assert allclose(Y[1,:], [-0.000117062180693, 7.94434448109e-005, -0.000151505429018]) |
---|
1281 | |
---|
1282 | |
---|
1283 | def test_second_order_flat_bed_onestep(self): |
---|
1284 | |
---|
1285 | from mesh_factory import rectangular |
---|
1286 | from shallow_water import Domain, Reflective_boundary,\ |
---|
1287 | Dirichlet_boundary, Constant_height |
---|
1288 | from Numeric import array |
---|
1289 | |
---|
1290 | #Create basic mesh |
---|
1291 | points, vertices, boundary = rectangular(6, 6) |
---|
1292 | |
---|
1293 | #Create shallow water domain |
---|
1294 | domain = Domain(points, vertices, boundary) |
---|
1295 | domain.smooth = False |
---|
1296 | domain.default_order=2 |
---|
1297 | |
---|
1298 | # Boundary conditions |
---|
1299 | Br = Reflective_boundary(domain) |
---|
1300 | Bd = Dirichlet_boundary([0.1, 0., 0.]) |
---|
1301 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1302 | |
---|
1303 | domain.check_integrity() |
---|
1304 | |
---|
1305 | #Evolution |
---|
1306 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.05): |
---|
1307 | pass# domain.write_time() |
---|
1308 | |
---|
1309 | #Data from earlier version of pyvolution |
---|
1310 | assert allclose(domain.min_timestep, 0.0396825396825) |
---|
1311 | assert allclose(domain.max_timestep, 0.0396825396825) |
---|
1312 | |
---|
1313 | assert allclose(domain.quantities['level'].centroid_values[:12], |
---|
1314 | [0.00171396, 0.02656103, 0.00241523, 0.02656103, |
---|
1315 | 0.00241523, 0.02656103, 0.00241523, 0.02656103, |
---|
1316 | 0.00241523, 0.02656103, 0.00241523, 0.0272623]) |
---|
1317 | |
---|
1318 | domain.distribute_to_vertices_and_edges() |
---|
1319 | assert allclose(domain.quantities['level'].vertex_values[:12,0], |
---|
1320 | [0.0001714, 0.02656103, 0.00024152, |
---|
1321 | 0.02656103, 0.00024152, 0.02656103, |
---|
1322 | 0.00024152, 0.02656103, 0.00024152, |
---|
1323 | 0.02656103, 0.00024152, 0.0272623]) |
---|
1324 | |
---|
1325 | assert allclose(domain.quantities['level'].vertex_values[:12,1], |
---|
1326 | [0.00315012, 0.02656103, 0.00024152, 0.02656103, |
---|
1327 | 0.00024152, 0.02656103, 0.00024152, 0.02656103, |
---|
1328 | 0.00024152, 0.02656103, 0.00040506, 0.0272623]) |
---|
1329 | |
---|
1330 | assert allclose(domain.quantities['level'].vertex_values[:12,2], |
---|
1331 | [0.00182037, 0.02656103, 0.00676264, |
---|
1332 | 0.02656103, 0.00676264, 0.02656103, |
---|
1333 | 0.00676264, 0.02656103, 0.00676264, |
---|
1334 | 0.02656103, 0.0065991, 0.0272623]) |
---|
1335 | |
---|
1336 | assert allclose(domain.quantities['xmomentum'].centroid_values[:12], |
---|
1337 | [0.00113961, 0.01302432, 0.00148672, |
---|
1338 | 0.01302432, 0.00148672, 0.01302432, |
---|
1339 | 0.00148672, 0.01302432, 0.00148672 , |
---|
1340 | 0.01302432, 0.00148672, 0.01337143]) |
---|
1341 | |
---|
1342 | assert allclose(domain.quantities['ymomentum'].centroid_values[:12], |
---|
1343 | [-2.91240050e-004 , 1.22721531e-004, |
---|
1344 | -1.22721531e-004, 1.22721531e-004 , |
---|
1345 | -1.22721531e-004, 1.22721531e-004, |
---|
1346 | -1.22721531e-004 , 1.22721531e-004, |
---|
1347 | -1.22721531e-004, 1.22721531e-004, |
---|
1348 | -1.22721531e-004, -4.57969873e-005]) |
---|
1349 | |
---|
1350 | |
---|
1351 | |
---|
1352 | def test_second_order_flat_bed_moresteps(self): |
---|
1353 | |
---|
1354 | from mesh_factory import rectangular |
---|
1355 | from shallow_water import Domain, Reflective_boundary,\ |
---|
1356 | Dirichlet_boundary, Constant_height |
---|
1357 | from Numeric import array |
---|
1358 | |
---|
1359 | #Create basic mesh |
---|
1360 | points, vertices, boundary = rectangular(6, 6) |
---|
1361 | |
---|
1362 | #Create shallow water domain |
---|
1363 | domain = Domain(points, vertices, boundary) |
---|
1364 | domain.smooth = False |
---|
1365 | domain.default_order=2 |
---|
1366 | |
---|
1367 | # Boundary conditions |
---|
1368 | Br = Reflective_boundary(domain) |
---|
1369 | Bd = Dirichlet_boundary([0.1, 0., 0.]) |
---|
1370 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1371 | |
---|
1372 | domain.check_integrity() |
---|
1373 | |
---|
1374 | #Evolution |
---|
1375 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): |
---|
1376 | pass |
---|
1377 | |
---|
1378 | #Data from earlier version of pyvolution |
---|
1379 | #assert allclose(domain.min_timestep, 0.0396825396825) |
---|
1380 | #assert allclose(domain.max_timestep, 0.0396825396825) |
---|
1381 | #print domain.quantities['level'].centroid_values |
---|
1382 | |
---|
1383 | |
---|
1384 | def test_flatbed_first_order(self): |
---|
1385 | from mesh_factory import rectangular |
---|
1386 | from shallow_water import Domain,\ |
---|
1387 | Reflective_boundary, Dirichlet_boundary |
---|
1388 | |
---|
1389 | from Numeric import array |
---|
1390 | |
---|
1391 | #Create basic mesh |
---|
1392 | N = 8 |
---|
1393 | points, vertices, boundary = rectangular(N, N) |
---|
1394 | |
---|
1395 | #Create shallow water domain |
---|
1396 | domain = Domain(points, vertices, boundary) |
---|
1397 | domain.smooth = False |
---|
1398 | domain.visualise = False |
---|
1399 | domain.default_order=1 |
---|
1400 | |
---|
1401 | # Boundary conditions |
---|
1402 | Br = Reflective_boundary(domain) |
---|
1403 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
1404 | |
---|
1405 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1406 | domain.check_integrity() |
---|
1407 | |
---|
1408 | |
---|
1409 | #Evolution |
---|
1410 | for t in domain.evolve(yieldstep = 0.02, finaltime = 0.5): |
---|
1411 | pass |
---|
1412 | #domain.write_time() |
---|
1413 | |
---|
1414 | #FIXME: These numbers were from version before 25/10 |
---|
1415 | #assert allclose(domain.min_timestep, 0.0140413643926) |
---|
1416 | #assert allclose(domain.max_timestep, 0.0140947355753) |
---|
1417 | |
---|
1418 | for i in range(3): |
---|
1419 | #assert allclose(domain.quantities['level'].edge_values[:4,i], |
---|
1420 | # [0.10730244,0.12337617,0.11200126,0.12605666]) |
---|
1421 | |
---|
1422 | assert allclose(domain.quantities['xmomentum'].edge_values[:4,i], |
---|
1423 | [0.07610894,0.06901572,0.07284461,0.06819712]) |
---|
1424 | |
---|
1425 | #assert allclose(domain.quantities['ymomentum'].edge_values[:4,i], |
---|
1426 | # [-0.0060238, -0.00157404, -0.00309633, -0.0001637]) |
---|
1427 | |
---|
1428 | def test_flatbed_second_order(self): |
---|
1429 | from mesh_factory import rectangular |
---|
1430 | from shallow_water import Domain,\ |
---|
1431 | Reflective_boundary, Dirichlet_boundary |
---|
1432 | |
---|
1433 | from Numeric import array |
---|
1434 | |
---|
1435 | #Create basic mesh |
---|
1436 | N = 8 |
---|
1437 | points, vertices, boundary = rectangular(N, N) |
---|
1438 | |
---|
1439 | #Create shallow water domain |
---|
1440 | domain = Domain(points, vertices, boundary) |
---|
1441 | domain.smooth = False |
---|
1442 | domain.visualise = False |
---|
1443 | domain.default_order=2 |
---|
1444 | #domain.minimum_allowed_height = 0.0 #Makes it like the 'oldstyle' balance |
---|
1445 | |
---|
1446 | # Boundary conditions |
---|
1447 | Br = Reflective_boundary(domain) |
---|
1448 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
1449 | |
---|
1450 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1451 | domain.check_integrity() |
---|
1452 | |
---|
1453 | #Evolution |
---|
1454 | for t in domain.evolve(yieldstep = 0.01, finaltime = 0.03): |
---|
1455 | pass |
---|
1456 | |
---|
1457 | |
---|
1458 | assert allclose(domain.min_timestep, 0.0210448446782) |
---|
1459 | assert allclose(domain.max_timestep, 0.0210448446782) |
---|
1460 | |
---|
1461 | #print domain.quantities['level'].vertex_values[:4,0] |
---|
1462 | #print domain.quantities['xmomentum'].vertex_values[:4,0] |
---|
1463 | #print domain.quantities['ymomentum'].vertex_values[:4,0] |
---|
1464 | |
---|
1465 | #FIXME: These numbers were from version before 25/10 |
---|
1466 | #assert allclose(domain.quantities['level'].vertex_values[:4,0], |
---|
1467 | # [0.00101913,0.05352143,0.00104852,0.05354394]) |
---|
1468 | |
---|
1469 | assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
1470 | [ 0.00064835, 0.03685719, 0.00085073, 0.03687313]) |
---|
1471 | |
---|
1472 | #assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
1473 | # [0.00090581,0.03685719,0.00088303,0.03687313]) |
---|
1474 | |
---|
1475 | assert allclose(domain.quantities['ymomentum'].vertex_values[:4,0], |
---|
1476 | [-0.00139463,0.0006156,-0.00060364,0.00061827]) |
---|
1477 | |
---|
1478 | |
---|
1479 | |
---|
1480 | def test_flatbed_second_order_distribute(self): |
---|
1481 | #Use real data from pyvolution 2 |
---|
1482 | #painfully setup and extracted. |
---|
1483 | from mesh_factory import rectangular |
---|
1484 | from shallow_water import Domain,\ |
---|
1485 | Reflective_boundary, Dirichlet_boundary |
---|
1486 | |
---|
1487 | from Numeric import array |
---|
1488 | |
---|
1489 | #Create basic mesh |
---|
1490 | N = 8 |
---|
1491 | points, vertices, boundary = rectangular(N, N) |
---|
1492 | |
---|
1493 | #Create shallow water domain |
---|
1494 | domain = Domain(points, vertices, boundary) |
---|
1495 | domain.smooth = False |
---|
1496 | domain.visualise = False |
---|
1497 | domain.default_order=domain.order=2 |
---|
1498 | |
---|
1499 | # Boundary conditions |
---|
1500 | Br = Reflective_boundary(domain) |
---|
1501 | Bd = Dirichlet_boundary([0.2,0.,0.]) |
---|
1502 | |
---|
1503 | domain.set_boundary({'left': Bd, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1504 | domain.check_integrity() |
---|
1505 | |
---|
1506 | |
---|
1507 | |
---|
1508 | for V in [False, True]: |
---|
1509 | if V: |
---|
1510 | #Set centroids as if system had been evolved |
---|
1511 | L = zeros(2*N*N, Float) |
---|
1512 | L[:32] = [7.21205592e-003, 5.35214298e-002, 1.00910824e-002, |
---|
1513 | 5.35439433e-002, 1.00910824e-002, 5.35439433e-002, |
---|
1514 | 1.00910824e-002, 5.35439433e-002, 1.00910824e-002, |
---|
1515 | 5.35439433e-002, 1.00910824e-002, 5.35439433e-002, |
---|
1516 | 1.00910824e-002, 5.35393928e-002, 1.02344264e-002, |
---|
1517 | 5.59605058e-002, 0.00000000e+000, 3.31027800e-004, |
---|
1518 | 0.00000000e+000, 4.37962142e-005, 0.00000000e+000, |
---|
1519 | 4.37962142e-005, 0.00000000e+000, 4.37962142e-005, |
---|
1520 | 0.00000000e+000, 4.37962142e-005, 0.00000000e+000, |
---|
1521 | 4.37962142e-005, 0.00000000e+000, 4.37962142e-005, |
---|
1522 | 0.00000000e+000, 5.57305948e-005] |
---|
1523 | |
---|
1524 | X = zeros(2*N*N, Float) |
---|
1525 | X[:32] = [6.48351607e-003, 3.68571894e-002, 8.50733285e-003, |
---|
1526 | 3.68731327e-002, 8.50733285e-003, 3.68731327e-002, |
---|
1527 | 8.50733285e-003, 3.68731327e-002, 8.50733285e-003, |
---|
1528 | 3.68731327e-002, 8.50733285e-003, 3.68731327e-002, |
---|
1529 | 8.50733285e-003, 3.68693861e-002, 8.65220973e-003, |
---|
1530 | 3.85055387e-002, 0.00000000e+000, 2.86060840e-004, |
---|
1531 | 0.00000000e+000, 3.58905503e-005, 0.00000000e+000, |
---|
1532 | 3.58905503e-005, 0.00000000e+000, 3.58905503e-005, |
---|
1533 | 0.00000000e+000, 3.58905503e-005, 0.00000000e+000, |
---|
1534 | 3.58905503e-005, 0.00000000e+000, 3.58905503e-005, |
---|
1535 | 0.00000000e+000, 4.57662812e-005] |
---|
1536 | |
---|
1537 | Y = zeros(2*N*N, Float) |
---|
1538 | Y[:32]=[-1.39463104e-003, 6.15600298e-004, -6.03637382e-004, |
---|
1539 | 6.18272251e-004, -6.03637382e-004, 6.18272251e-004, |
---|
1540 | -6.03637382e-004, 6.18272251e-004, -6.03637382e-004, |
---|
1541 | 6.18272251e-004, -6.03637382e-004, 6.18272251e-004, |
---|
1542 | -6.03637382e-004, 6.18599320e-004, -6.74622797e-004, |
---|
1543 | -1.48934756e-004, 0.00000000e+000, -5.35079969e-005, |
---|
1544 | 0.00000000e+000, -2.57264987e-005, 0.00000000e+000, |
---|
1545 | -2.57264987e-005, 0.00000000e+000, -2.57264987e-005, |
---|
1546 | 0.00000000e+000, -2.57264987e-005, 0.00000000e+000, |
---|
1547 | -2.57264987e-005, 0.00000000e+000, -2.57264987e-005, |
---|
1548 | 0.00000000e+000, -2.57635178e-005] |
---|
1549 | |
---|
1550 | |
---|
1551 | domain.set_quantity('level', L, 'centroids') |
---|
1552 | domain.set_quantity('xmomentum', X, 'centroids') |
---|
1553 | domain.set_quantity('ymomentum', Y, 'centroids') |
---|
1554 | |
---|
1555 | domain.check_integrity() |
---|
1556 | else: |
---|
1557 | #Evolution |
---|
1558 | for t in domain.evolve(yieldstep = 0.01, finaltime = 0.03): |
---|
1559 | pass |
---|
1560 | assert allclose(domain.min_timestep, 0.0210448446782) |
---|
1561 | assert allclose(domain.max_timestep, 0.0210448446782) |
---|
1562 | |
---|
1563 | |
---|
1564 | #Centroids were correct but not vertices. |
---|
1565 | #Hence the check of distribute below. |
---|
1566 | assert allclose(domain.quantities['level'].centroid_values[:4], |
---|
1567 | [0.00721206,0.05352143,0.01009108,0.05354394]) |
---|
1568 | |
---|
1569 | assert allclose(domain.quantities['xmomentum'].centroid_values[:4], |
---|
1570 | [0.00648352,0.03685719,0.00850733,0.03687313]) |
---|
1571 | |
---|
1572 | assert allclose(domain.quantities['ymomentum'].centroid_values[:4], |
---|
1573 | [-0.00139463,0.0006156,-0.00060364,0.00061827]) |
---|
1574 | |
---|
1575 | #print 'C17=', domain.quantities['xmomentum'].centroid_values[17] |
---|
1576 | #print 'C19=', domain.quantities['xmomentum'].centroid_values[19] |
---|
1577 | |
---|
1578 | #assert allclose(domain.quantities['xmomentum'].centroid_values[17],0.00028606084) |
---|
1579 | ##print domain.quantities['xmomentum'].centroid_values[17], V |
---|
1580 | ##print |
---|
1581 | if not V: |
---|
1582 | assert allclose(domain.quantities['xmomentum'].centroid_values[17], 0.0) |
---|
1583 | else: |
---|
1584 | assert allclose(domain.quantities['xmomentum'].centroid_values[17], 0.00028606084) |
---|
1585 | |
---|
1586 | import copy |
---|
1587 | XX = copy.copy(domain.quantities['xmomentum'].centroid_values) |
---|
1588 | assert allclose(domain.quantities['xmomentum'].centroid_values, XX) |
---|
1589 | |
---|
1590 | domain.distribute_to_vertices_and_edges() |
---|
1591 | |
---|
1592 | #assert allclose(domain.quantities['xmomentum'].centroid_values, XX) |
---|
1593 | |
---|
1594 | assert allclose(domain.quantities['xmomentum'].centroid_values[17], |
---|
1595 | 0.0) |
---|
1596 | |
---|
1597 | |
---|
1598 | #FIXME: These numbers were from version before 25/10 |
---|
1599 | #assert allclose(domain.quantities['level'].vertex_values[:4,0], |
---|
1600 | # [0.00101913,0.05352143,0.00104852,0.05354394]) |
---|
1601 | |
---|
1602 | assert allclose(domain.quantities['ymomentum'].vertex_values[:4,0], |
---|
1603 | [-0.00139463,0.0006156,-0.00060364,0.00061827]) |
---|
1604 | |
---|
1605 | |
---|
1606 | assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
1607 | [0.00064835,0.03685719,0.00085073,0.03687313]) |
---|
1608 | |
---|
1609 | |
---|
1610 | #NB NO longer relvant: |
---|
1611 | |
---|
1612 | #This was the culprit. First triangles vertex 0 had an |
---|
1613 | #x-momentum of 0.0064835 instead of 0.00090581 and |
---|
1614 | #third triangle had 0.00850733 instead of 0.00088303 |
---|
1615 | #print domain.quantities['xmomentum'].vertex_values[:4,0] |
---|
1616 | |
---|
1617 | #print domain.quantities['xmomentum'].vertex_values[:4,0] |
---|
1618 | #assert allclose(domain.quantities['xmomentum'].vertex_values[:4,0], |
---|
1619 | # [0.00090581,0.03685719,0.00088303,0.03687313]) |
---|
1620 | |
---|
1621 | |
---|
1622 | |
---|
1623 | |
---|
1624 | |
---|
1625 | def test_bedslope_problem_first_order(self): |
---|
1626 | |
---|
1627 | from mesh_factory import rectangular |
---|
1628 | from shallow_water import Domain, Reflective_boundary, Constant_height |
---|
1629 | from Numeric import array |
---|
1630 | |
---|
1631 | #Create basic mesh |
---|
1632 | points, vertices, boundary = rectangular(6, 6) |
---|
1633 | |
---|
1634 | #Create shallow water domain |
---|
1635 | domain = Domain(points, vertices, boundary) |
---|
1636 | domain.smooth = False |
---|
1637 | domain.default_order=1 |
---|
1638 | |
---|
1639 | #Bed-slope and friction |
---|
1640 | def x_slope(x, y): |
---|
1641 | return -x/3 |
---|
1642 | |
---|
1643 | domain.set_quantity('elevation', x_slope) |
---|
1644 | |
---|
1645 | # Boundary conditions |
---|
1646 | Br = Reflective_boundary(domain) |
---|
1647 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1648 | |
---|
1649 | #Initial condition |
---|
1650 | domain.set_quantity('level', Constant_height(x_slope, 0.05)) |
---|
1651 | domain.check_integrity() |
---|
1652 | |
---|
1653 | #Evolution |
---|
1654 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.05): |
---|
1655 | pass# domain.write_time() |
---|
1656 | |
---|
1657 | assert allclose(domain.min_timestep, 0.050010003001) |
---|
1658 | assert allclose(domain.max_timestep, 0.050010003001) |
---|
1659 | |
---|
1660 | |
---|
1661 | def test_bedslope_problem_first_order_moresteps(self): |
---|
1662 | |
---|
1663 | from mesh_factory import rectangular |
---|
1664 | from shallow_water import Domain, Reflective_boundary, Constant_height |
---|
1665 | from Numeric import array |
---|
1666 | |
---|
1667 | #Create basic mesh |
---|
1668 | points, vertices, boundary = rectangular(6, 6) |
---|
1669 | |
---|
1670 | #Create shallow water domain |
---|
1671 | domain = Domain(points, vertices, boundary) |
---|
1672 | domain.smooth = False |
---|
1673 | domain.default_order=1 |
---|
1674 | |
---|
1675 | #Bed-slope and friction |
---|
1676 | def x_slope(x, y): |
---|
1677 | return -x/3 |
---|
1678 | |
---|
1679 | domain.set_quantity('elevation', x_slope) |
---|
1680 | |
---|
1681 | # Boundary conditions |
---|
1682 | Br = Reflective_boundary(domain) |
---|
1683 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1684 | |
---|
1685 | #Initial condition |
---|
1686 | domain.set_quantity('level', Constant_height(x_slope, 0.05)) |
---|
1687 | domain.check_integrity() |
---|
1688 | |
---|
1689 | #Evolution |
---|
1690 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.5): |
---|
1691 | pass# domain.write_time() |
---|
1692 | |
---|
1693 | #Data from earlier version of pyvolution |
---|
1694 | #print domain.quantities['level'].centroid_values |
---|
1695 | |
---|
1696 | assert allclose(domain.quantities['level'].centroid_values, |
---|
1697 | [-0.02998628, -0.01520652, -0.03043492, |
---|
1698 | -0.0149132, -0.03004706, -0.01476251, |
---|
1699 | -0.0298215, -0.01467976, -0.02988158, |
---|
1700 | -0.01474662, -0.03036161, -0.01442995, |
---|
1701 | -0.07624583, -0.06297061, -0.07733792, |
---|
1702 | -0.06342237, -0.07695439, -0.06289595, |
---|
1703 | -0.07635559, -0.0626065, -0.07633628, |
---|
1704 | -0.06280072, -0.07739632, -0.06386738, |
---|
1705 | -0.12161738, -0.11028239, -0.1223796, |
---|
1706 | -0.11095953, -0.12189744, -0.11048616, |
---|
1707 | -0.12074535, -0.10987605, -0.12014311, |
---|
1708 | -0.10976691, -0.12096859, -0.11087692, |
---|
1709 | -0.16868259, -0.15868061, -0.16801135, |
---|
1710 | -0.1588003, -0.16674343, -0.15813323, |
---|
1711 | -0.16457595, -0.15693826, -0.16281096, |
---|
1712 | -0.15585154, -0.16283873, -0.15540068, |
---|
1713 | -0.17450362, -0.19919913, -0.18062882, |
---|
1714 | -0.19764131, -0.17783111, -0.19407213, |
---|
1715 | -0.1736915, -0.19053624, -0.17228678, |
---|
1716 | -0.19105634, -0.17920133, -0.1968828, |
---|
1717 | -0.14244395, -0.14604641, -0.14473537, |
---|
1718 | -0.1506107, -0.14510055, -0.14919522, |
---|
1719 | -0.14175896, -0.14560798, -0.13911658, |
---|
1720 | -0.14439383, -0.13924047, -0.14829043]) |
---|
1721 | |
---|
1722 | |
---|
1723 | def test_bedslope_problem_second_order_one_step(self): |
---|
1724 | |
---|
1725 | from mesh_factory import rectangular |
---|
1726 | from shallow_water import Domain, Reflective_boundary, Constant_height |
---|
1727 | from Numeric import array |
---|
1728 | |
---|
1729 | #Create basic mesh |
---|
1730 | points, vertices, boundary = rectangular(6, 6) |
---|
1731 | |
---|
1732 | #Create shallow water domain |
---|
1733 | domain = Domain(points, vertices, boundary) |
---|
1734 | domain.smooth = False |
---|
1735 | domain.default_order=2 |
---|
1736 | |
---|
1737 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
1738 | def x_slope(x, y): |
---|
1739 | return -x/3 |
---|
1740 | |
---|
1741 | domain.set_quantity('elevation', x_slope) |
---|
1742 | |
---|
1743 | # Boundary conditions |
---|
1744 | Br = Reflective_boundary(domain) |
---|
1745 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1746 | |
---|
1747 | #Initial condition |
---|
1748 | domain.set_quantity('level', Constant_height(x_slope, 0.05)) |
---|
1749 | domain.check_integrity() |
---|
1750 | |
---|
1751 | assert allclose(domain.quantities['level'].centroid_values, |
---|
1752 | [0.01296296, 0.03148148, 0.01296296, |
---|
1753 | 0.03148148, 0.01296296, 0.03148148, |
---|
1754 | 0.01296296, 0.03148148, 0.01296296, |
---|
1755 | 0.03148148, 0.01296296, 0.03148148, |
---|
1756 | -0.04259259, -0.02407407, -0.04259259, |
---|
1757 | -0.02407407, -0.04259259, -0.02407407, |
---|
1758 | -0.04259259, -0.02407407, -0.04259259, |
---|
1759 | -0.02407407, -0.04259259, -0.02407407, |
---|
1760 | -0.09814815, -0.07962963, -0.09814815, |
---|
1761 | -0.07962963, -0.09814815, -0.07962963, |
---|
1762 | -0.09814815, -0.07962963, -0.09814815, |
---|
1763 | -0.07962963, -0.09814815, -0.07962963, |
---|
1764 | -0.1537037 , -0.13518519, -0.1537037, |
---|
1765 | -0.13518519, -0.1537037, -0.13518519, |
---|
1766 | -0.1537037 , -0.13518519, -0.1537037, |
---|
1767 | -0.13518519, -0.1537037, -0.13518519, |
---|
1768 | -0.20925926, -0.19074074, -0.20925926, |
---|
1769 | -0.19074074, -0.20925926, -0.19074074, |
---|
1770 | -0.20925926, -0.19074074, -0.20925926, |
---|
1771 | -0.19074074, -0.20925926, -0.19074074, |
---|
1772 | -0.26481481, -0.2462963, -0.26481481, |
---|
1773 | -0.2462963, -0.26481481, -0.2462963, |
---|
1774 | -0.26481481, -0.2462963, -0.26481481, |
---|
1775 | -0.2462963, -0.26481481, -0.2462963]) |
---|
1776 | |
---|
1777 | |
---|
1778 | #print domain.quantities['level'].extrapolate_second_order() |
---|
1779 | #domain.distribute_to_vertices_and_edges() |
---|
1780 | #print domain.quantities['level'].vertex_values[:,0] |
---|
1781 | |
---|
1782 | #Evolution |
---|
1783 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.05): |
---|
1784 | #domain.write_time() |
---|
1785 | pass |
---|
1786 | |
---|
1787 | |
---|
1788 | #print domain.quantities['level'].centroid_values |
---|
1789 | assert allclose(domain.quantities['level'].centroid_values, |
---|
1790 | [0.01290985, 0.02356019, 0.01619096, 0.02356019, 0.01619096, |
---|
1791 | 0.02356019, 0.01619096, 0.02356019, 0.01619096, 0.02356019, |
---|
1792 | 0.01619096, 0.0268413, -0.04411074, -0.0248011, -0.04186556, |
---|
1793 | -0.0248011, -0.04186556, -0.0248011, -0.04186556, -0.0248011, |
---|
1794 | -0.04186556, -0.0248011, -0.04186556, -0.02255593, |
---|
1795 | -0.09966629, -0.08035666, -0.09742112, -0.08035666, |
---|
1796 | -0.09742112, -0.08035666, -0.09742112, -0.08035666, |
---|
1797 | -0.09742112, -0.08035666, -0.09742112, -0.07811149, |
---|
1798 | -0.15522185, -0.13591222, -0.15297667, -0.13591222, |
---|
1799 | -0.15297667, -0.13591222, -0.15297667, -0.13591222, |
---|
1800 | -0.15297667, -0.13591222, -0.15297667, -0.13366704, |
---|
1801 | -0.2107774, -0.19146777, -0.20853223, -0.19146777, |
---|
1802 | -0.20853223, -0.19146777, -0.20853223, -0.19146777, |
---|
1803 | -0.20853223, -0.19146777, -0.20853223, -0.1892226, |
---|
1804 | -0.26120669, -0.24776246, -0.25865535, -0.24776246, |
---|
1805 | -0.25865535, -0.24776246, -0.25865535, -0.24776246, |
---|
1806 | -0.25865535, -0.24776246, -0.25865535, -0.24521113]) |
---|
1807 | |
---|
1808 | |
---|
1809 | |
---|
1810 | def test_bedslope_problem_second_order_two_steps(self): |
---|
1811 | |
---|
1812 | from mesh_factory import rectangular |
---|
1813 | from shallow_water import Domain, Reflective_boundary, Constant_height |
---|
1814 | from Numeric import array |
---|
1815 | |
---|
1816 | #Create basic mesh |
---|
1817 | points, vertices, boundary = rectangular(6, 6) |
---|
1818 | |
---|
1819 | #Create shallow water domain |
---|
1820 | domain = Domain(points, vertices, boundary) |
---|
1821 | domain.smooth = False |
---|
1822 | domain.default_order=2 |
---|
1823 | |
---|
1824 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
1825 | def x_slope(x, y): |
---|
1826 | return -x/3 |
---|
1827 | |
---|
1828 | domain.set_quantity('elevation', x_slope) |
---|
1829 | |
---|
1830 | # Boundary conditions |
---|
1831 | Br = Reflective_boundary(domain) |
---|
1832 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1833 | |
---|
1834 | #Initial condition |
---|
1835 | domain.set_quantity('level', Constant_height(x_slope, 0.05)) |
---|
1836 | domain.check_integrity() |
---|
1837 | |
---|
1838 | assert allclose(domain.quantities['level'].centroid_values, |
---|
1839 | [0.01296296, 0.03148148, 0.01296296, |
---|
1840 | 0.03148148, 0.01296296, 0.03148148, |
---|
1841 | 0.01296296, 0.03148148, 0.01296296, |
---|
1842 | 0.03148148, 0.01296296, 0.03148148, |
---|
1843 | -0.04259259, -0.02407407, -0.04259259, |
---|
1844 | -0.02407407, -0.04259259, -0.02407407, |
---|
1845 | -0.04259259, -0.02407407, -0.04259259, |
---|
1846 | -0.02407407, -0.04259259, -0.02407407, |
---|
1847 | -0.09814815, -0.07962963, -0.09814815, |
---|
1848 | -0.07962963, -0.09814815, -0.07962963, |
---|
1849 | -0.09814815, -0.07962963, -0.09814815, |
---|
1850 | -0.07962963, -0.09814815, -0.07962963, |
---|
1851 | -0.1537037 , -0.13518519, -0.1537037, |
---|
1852 | -0.13518519, -0.1537037, -0.13518519, |
---|
1853 | -0.1537037 , -0.13518519, -0.1537037, |
---|
1854 | -0.13518519, -0.1537037, -0.13518519, |
---|
1855 | -0.20925926, -0.19074074, -0.20925926, |
---|
1856 | -0.19074074, -0.20925926, -0.19074074, |
---|
1857 | -0.20925926, -0.19074074, -0.20925926, |
---|
1858 | -0.19074074, -0.20925926, -0.19074074, |
---|
1859 | -0.26481481, -0.2462963, -0.26481481, |
---|
1860 | -0.2462963, -0.26481481, -0.2462963, |
---|
1861 | -0.26481481, -0.2462963, -0.26481481, |
---|
1862 | -0.2462963, -0.26481481, -0.2462963]) |
---|
1863 | |
---|
1864 | |
---|
1865 | #print domain.quantities['level'].extrapolate_second_order() |
---|
1866 | #domain.distribute_to_vertices_and_edges() |
---|
1867 | #print domain.quantities['level'].vertex_values[:,0] |
---|
1868 | |
---|
1869 | #Evolution |
---|
1870 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): |
---|
1871 | pass |
---|
1872 | |
---|
1873 | |
---|
1874 | #Data from earlier version of pyvolution ft=0.1 |
---|
1875 | assert allclose(domain.min_timestep, 0.0376895634803) |
---|
1876 | assert allclose(domain.max_timestep, 0.0415635655309) |
---|
1877 | |
---|
1878 | |
---|
1879 | assert allclose(domain.quantities['level'].centroid_values, |
---|
1880 | [0.00855788, 0.01575204, 0.00994606, 0.01717072, |
---|
1881 | 0.01005985, 0.01716362, 0.01005985, 0.01716299, |
---|
1882 | 0.01007098, 0.01736248, 0.01216452, 0.02026776, |
---|
1883 | -0.04462374, -0.02479045, -0.04199789, -0.0229465, |
---|
1884 | -0.04184033, -0.02295693, -0.04184013, -0.02295675, |
---|
1885 | -0.04184486, -0.0228168, -0.04028876, -0.02036486, |
---|
1886 | -0.10029444, -0.08170809, -0.09772846, -0.08021704, |
---|
1887 | -0.09760006, -0.08022143, -0.09759984, -0.08022124, |
---|
1888 | -0.09760261, -0.08008893, -0.09603914, -0.07758209, |
---|
1889 | -0.15584152, -0.13723138, -0.15327266, -0.13572906, |
---|
1890 | -0.15314427, -0.13573349, -0.15314405, -0.13573331, |
---|
1891 | -0.15314679, -0.13560104, -0.15158523, -0.13310701, |
---|
1892 | -0.21208605, -0.19283913, -0.20955631, -0.19134189, |
---|
1893 | -0.20942821, -0.19134598, -0.20942799, -0.1913458, |
---|
1894 | -0.20943005, -0.19120952, -0.20781177, -0.18869401, |
---|
1895 | -0.25384082, -0.2463294, -0.25047649, -0.24464654, |
---|
1896 | -0.25031159, -0.24464253, -0.25031112, -0.24464253, |
---|
1897 | -0.25031463, -0.24454764, -0.24885323, -0.24286438]) |
---|
1898 | |
---|
1899 | |
---|
1900 | |
---|
1901 | |
---|
1902 | def test_bedslope_problem_second_order_two_yieldsteps(self): |
---|
1903 | |
---|
1904 | from mesh_factory import rectangular |
---|
1905 | from shallow_water import Domain, Reflective_boundary, Constant_height |
---|
1906 | from Numeric import array |
---|
1907 | |
---|
1908 | #Create basic mesh |
---|
1909 | points, vertices, boundary = rectangular(6, 6) |
---|
1910 | |
---|
1911 | #Create shallow water domain |
---|
1912 | domain = Domain(points, vertices, boundary) |
---|
1913 | domain.smooth = False |
---|
1914 | domain.default_order=2 |
---|
1915 | |
---|
1916 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
1917 | def x_slope(x, y): |
---|
1918 | return -x/3 |
---|
1919 | |
---|
1920 | domain.set_quantity('elevation', x_slope) |
---|
1921 | |
---|
1922 | # Boundary conditions |
---|
1923 | Br = Reflective_boundary(domain) |
---|
1924 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
1925 | |
---|
1926 | #Initial condition |
---|
1927 | domain.set_quantity('level', Constant_height(x_slope, 0.05)) |
---|
1928 | domain.check_integrity() |
---|
1929 | |
---|
1930 | assert allclose(domain.quantities['level'].centroid_values, |
---|
1931 | [0.01296296, 0.03148148, 0.01296296, |
---|
1932 | 0.03148148, 0.01296296, 0.03148148, |
---|
1933 | 0.01296296, 0.03148148, 0.01296296, |
---|
1934 | 0.03148148, 0.01296296, 0.03148148, |
---|
1935 | -0.04259259, -0.02407407, -0.04259259, |
---|
1936 | -0.02407407, -0.04259259, -0.02407407, |
---|
1937 | -0.04259259, -0.02407407, -0.04259259, |
---|
1938 | -0.02407407, -0.04259259, -0.02407407, |
---|
1939 | -0.09814815, -0.07962963, -0.09814815, |
---|
1940 | -0.07962963, -0.09814815, -0.07962963, |
---|
1941 | -0.09814815, -0.07962963, -0.09814815, |
---|
1942 | -0.07962963, -0.09814815, -0.07962963, |
---|
1943 | -0.1537037 , -0.13518519, -0.1537037, |
---|
1944 | -0.13518519, -0.1537037, -0.13518519, |
---|
1945 | -0.1537037 , -0.13518519, -0.1537037, |
---|
1946 | -0.13518519, -0.1537037, -0.13518519, |
---|
1947 | -0.20925926, -0.19074074, -0.20925926, |
---|
1948 | -0.19074074, -0.20925926, -0.19074074, |
---|
1949 | -0.20925926, -0.19074074, -0.20925926, |
---|
1950 | -0.19074074, -0.20925926, -0.19074074, |
---|
1951 | -0.26481481, -0.2462963, -0.26481481, |
---|
1952 | -0.2462963, -0.26481481, -0.2462963, |
---|
1953 | -0.26481481, -0.2462963, -0.26481481, |
---|
1954 | -0.2462963, -0.26481481, -0.2462963]) |
---|
1955 | |
---|
1956 | |
---|
1957 | #print domain.quantities['level'].extrapolate_second_order() |
---|
1958 | #domain.distribute_to_vertices_and_edges() |
---|
1959 | #print domain.quantities['level'].vertex_values[:,0] |
---|
1960 | |
---|
1961 | #Evolution |
---|
1962 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): #0.05?? |
---|
1963 | #domain.write_time() |
---|
1964 | pass |
---|
1965 | |
---|
1966 | |
---|
1967 | |
---|
1968 | assert allclose(domain.quantities['level'].centroid_values, |
---|
1969 | [0.00855788, 0.01575204, 0.00994606, 0.01717072, 0.01005985, |
---|
1970 | 0.01716362, 0.01005985, 0.01716299, 0.01007098, 0.01736248, |
---|
1971 | 0.01216452, 0.02026776, -0.04462374, -0.02479045, -0.04199789, |
---|
1972 | -0.0229465, -0.04184033, -0.02295693, -0.04184013, |
---|
1973 | -0.02295675, -0.04184486, -0.0228168, -0.04028876, |
---|
1974 | -0.02036486, -0.10029444, -0.08170809, -0.09772846, |
---|
1975 | -0.08021704, -0.09760006, -0.08022143, -0.09759984, |
---|
1976 | -0.08022124, -0.09760261, -0.08008893, -0.09603914, |
---|
1977 | -0.07758209, -0.15584152, -0.13723138, -0.15327266, |
---|
1978 | -0.13572906, -0.15314427, -0.13573349, -0.15314405, |
---|
1979 | -0.13573331, -0.15314679, -0.13560104, -0.15158523, |
---|
1980 | -0.13310701, -0.21208605, -0.19283913, -0.20955631, |
---|
1981 | -0.19134189, -0.20942821, -0.19134598, -0.20942799, |
---|
1982 | -0.1913458, -0.20943005, -0.19120952, -0.20781177, |
---|
1983 | -0.18869401, -0.25384082, -0.2463294, -0.25047649, |
---|
1984 | -0.24464654, -0.25031159, -0.24464253, -0.25031112, |
---|
1985 | -0.24464253, -0.25031463, -0.24454764, -0.24885323, |
---|
1986 | -0.24286438]) |
---|
1987 | |
---|
1988 | |
---|
1989 | |
---|
1990 | def test_bedslope_problem_second_order_more_steps(self): |
---|
1991 | |
---|
1992 | from mesh_factory import rectangular |
---|
1993 | from shallow_water import Domain, Reflective_boundary, Constant_height |
---|
1994 | from Numeric import array |
---|
1995 | |
---|
1996 | #Create basic mesh |
---|
1997 | points, vertices, boundary = rectangular(6, 6) |
---|
1998 | |
---|
1999 | #Create shallow water domain |
---|
2000 | domain = Domain(points, vertices, boundary) |
---|
2001 | domain.smooth = False |
---|
2002 | domain.default_order=2 |
---|
2003 | |
---|
2004 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
2005 | def x_slope(x, y): |
---|
2006 | return -x/3 |
---|
2007 | |
---|
2008 | domain.set_quantity('elevation', x_slope) |
---|
2009 | |
---|
2010 | # Boundary conditions |
---|
2011 | Br = Reflective_boundary(domain) |
---|
2012 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
2013 | |
---|
2014 | #Initial condition |
---|
2015 | domain.set_quantity('level', Constant_height(x_slope, 0.05)) |
---|
2016 | domain.check_integrity() |
---|
2017 | |
---|
2018 | assert allclose(domain.quantities['level'].centroid_values, |
---|
2019 | [0.01296296, 0.03148148, 0.01296296, |
---|
2020 | 0.03148148, 0.01296296, 0.03148148, |
---|
2021 | 0.01296296, 0.03148148, 0.01296296, |
---|
2022 | 0.03148148, 0.01296296, 0.03148148, |
---|
2023 | -0.04259259, -0.02407407, -0.04259259, |
---|
2024 | -0.02407407, -0.04259259, -0.02407407, |
---|
2025 | -0.04259259, -0.02407407, -0.04259259, |
---|
2026 | -0.02407407, -0.04259259, -0.02407407, |
---|
2027 | -0.09814815, -0.07962963, -0.09814815, |
---|
2028 | -0.07962963, -0.09814815, -0.07962963, |
---|
2029 | -0.09814815, -0.07962963, -0.09814815, |
---|
2030 | -0.07962963, -0.09814815, -0.07962963, |
---|
2031 | -0.1537037 , -0.13518519, -0.1537037, |
---|
2032 | -0.13518519, -0.1537037, -0.13518519, |
---|
2033 | -0.1537037 , -0.13518519, -0.1537037, |
---|
2034 | -0.13518519, -0.1537037, -0.13518519, |
---|
2035 | -0.20925926, -0.19074074, -0.20925926, |
---|
2036 | -0.19074074, -0.20925926, -0.19074074, |
---|
2037 | -0.20925926, -0.19074074, -0.20925926, |
---|
2038 | -0.19074074, -0.20925926, -0.19074074, |
---|
2039 | -0.26481481, -0.2462963, -0.26481481, |
---|
2040 | -0.2462963, -0.26481481, -0.2462963, |
---|
2041 | -0.26481481, -0.2462963, -0.26481481, |
---|
2042 | -0.2462963, -0.26481481, -0.2462963]) |
---|
2043 | |
---|
2044 | |
---|
2045 | #print domain.quantities['level'].extrapolate_second_order() |
---|
2046 | #domain.distribute_to_vertices_and_edges() |
---|
2047 | #print domain.quantities['level'].vertex_values[:,0] |
---|
2048 | |
---|
2049 | #Evolution |
---|
2050 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.5): |
---|
2051 | pass |
---|
2052 | |
---|
2053 | |
---|
2054 | assert allclose(domain.quantities['level'].centroid_values, |
---|
2055 | [-0.02907028, -0.01475478, -0.02973417, -0.01447186, -0.02932665, -0.01428285, |
---|
2056 | -0.02901975, -0.0141361, -0.02898816, -0.01418135, -0.02961409, -0.01403487, |
---|
2057 | -0.07597998, -0.06252591, -0.07664854, -0.06312532, -0.07638287, -0.06265139, |
---|
2058 | -0.07571145, -0.06235231, -0.0756817, -0.06245309, -0.07652292, -0.06289946, |
---|
2059 | -0.12367464, -0.11088981, -0.12237277, -0.11115338, -0.1218934, -0.1107174, |
---|
2060 | -0.12081485, -0.11000491, -0.12038451, -0.11010335, -0.12102113, -0.11012105, |
---|
2061 | -0.16909116, -0.15831543, -0.16730214, -0.15786249, -0.1665493, -0.15697919, |
---|
2062 | -0.16496618, -0.15559852, -0.16338679, -0.15509088, -0.16364092, -0.15424423, |
---|
2063 | -0.18771107, -0.19903904, -0.18903759, -0.19858437, -0.18701552, -0.19697797, |
---|
2064 | -0.1833593, -0.19505871, -0.1818806, -0.19418042, -0.18586159, -0.19576946, |
---|
2065 | -0.13986873, -0.14170053, -0.14132188, -0.14560674, -0.14095617, -0.14373292, |
---|
2066 | -0.13785933, -0.14033364, -0.13592955, -0.13936356, -0.13596008, -0.14216296]) |
---|
2067 | |
---|
2068 | assert allclose(domain.quantities['xmomentum'].centroid_values, |
---|
2069 | [ 0.00831121, 0.00317948, 0.00731797, 0.00334939, 0.00764717, 0.00348053, |
---|
2070 | 0.00788729, 0.00356522, 0.00780649, 0.00341919, 0.00693525, 0.00310375, |
---|
2071 | 0.02166196, 0.01421475, 0.02017737, 0.01316839, 0.02037015, 0.01368659, |
---|
2072 | 0.02106, 0.01399161, 0.02074514, 0.01354935, 0.01887407, 0.0123113, |
---|
2073 | 0.03775083, 0.02855197, 0.03689337, 0.02759782, 0.03732848, 0.02812072, |
---|
2074 | 0.03872545, 0.02913348, 0.03880939, 0.02803804, 0.03546499, 0.0260039, |
---|
2075 | 0.0632131, 0.04730634, 0.0576324, 0.04592336, 0.05790921, 0.04690514, |
---|
2076 | 0.05986467, 0.04871165, 0.06170068, 0.04811572, 0.05657041, 0.04416292, |
---|
2077 | 0.08489642, 0.07188097, 0.07835261, 0.06843406, 0.07986412, 0.0698247, |
---|
2078 | 0.08201071, 0.07216756, 0.08378418, 0.07273624, 0.080399, 0.06645841, |
---|
2079 | 0.01631548, 0.04691608, 0.0206632, 0.044409, 0.02115518, 0.04560305, |
---|
2080 | 0.02160608, 0.04663725, 0.02174734, 0.04795559, 0.02281427, 0.05667111]) |
---|
2081 | |
---|
2082 | |
---|
2083 | assert allclose(domain.quantities['ymomentum'].centroid_values, |
---|
2084 | [ 1.45876601e-004, -3.24627393e-004, -1.57572719e-004, -2.92790187e-004, |
---|
2085 | -9.90988382e-005, -3.06677335e-004, -1.62493106e-004, -3.71310004e-004, |
---|
2086 | -1.99445058e-004, -3.28493467e-004, 6.68217349e-005, -8.42042805e-006, |
---|
2087 | 5.05093371e-004, -1.42842214e-004, -6.81454718e-005, -5.02084057e-004, |
---|
2088 | -8.50583861e-005, -4.65443981e-004, -1.96406564e-004, -5.88889562e-004, |
---|
2089 | -2.70160173e-004, -5.35485454e-004, 2.60780997e-004, 3.12145471e-005, |
---|
2090 | 5.16189608e-004, 1.07069062e-004, 9.29989252e-005, -3.71211119e-004, |
---|
2091 | 1.16350246e-004, -3.82407830e-004, -1.62077969e-004, -6.30906636e-004, |
---|
2092 | -4.74025708e-004, -6.94463009e-004, 6.15092843e-005, 2.22106820e-004, |
---|
2093 | -6.29589294e-004, 2.43611937e-004, -5.88125094e-004, -6.94293192e-005, |
---|
2094 | -4.17914641e-004, 6.64609019e-005, -7.68334577e-004, -3.40232101e-004, |
---|
2095 | -1.67424308e-003, -7.39485066e-004, -1.59966988e-003, 5.68262838e-005, |
---|
2096 | -1.48470633e-003, -1.84554882e-003, -2.27200099e-003, -1.67506848e-003, |
---|
2097 | -1.95610258e-003, -1.47638801e-003, -1.73779477e-003, -1.85498791e-003, |
---|
2098 | -2.01357843e-003, -2.17675471e-003, -1.65783870e-003, -1.15818681e-003, |
---|
2099 | -1.18663036e-003, -2.94229849e-003, -3.59309018e-003, -5.13496584e-003, |
---|
2100 | -6.17359400e-003, -5.98761937e-003, -6.00540116e-003, -5.01121966e-003, |
---|
2101 | -4.50964850e-003, -3.06319963e-003, 6.08950810e-004, -4.79537921e-004]) |
---|
2102 | |
---|
2103 | |
---|
2104 | |
---|
2105 | |
---|
2106 | def test_temp_play(self): |
---|
2107 | |
---|
2108 | from mesh_factory import rectangular |
---|
2109 | from shallow_water import Domain, Reflective_boundary, Constant_height |
---|
2110 | from Numeric import array |
---|
2111 | |
---|
2112 | #Create basic mesh |
---|
2113 | points, vertices, boundary = rectangular(5, 5) |
---|
2114 | |
---|
2115 | #Create shallow water domain |
---|
2116 | domain = Domain(points, vertices, boundary) |
---|
2117 | domain.smooth = False |
---|
2118 | domain.default_order=2 |
---|
2119 | |
---|
2120 | #Bed-slope and friction at vertices (and interpolated elsewhere) |
---|
2121 | def x_slope(x, y): |
---|
2122 | return -x/3 |
---|
2123 | |
---|
2124 | domain.set_quantity('elevation', x_slope) |
---|
2125 | |
---|
2126 | # Boundary conditions |
---|
2127 | Br = Reflective_boundary(domain) |
---|
2128 | domain.set_boundary({'left': Br, 'right': Br, 'top': Br, 'bottom': Br}) |
---|
2129 | |
---|
2130 | #Initial condition |
---|
2131 | domain.set_quantity('level', Constant_height(x_slope, 0.05)) |
---|
2132 | domain.check_integrity() |
---|
2133 | |
---|
2134 | #Evolution |
---|
2135 | for t in domain.evolve(yieldstep = 0.05, finaltime = 0.1): |
---|
2136 | pass |
---|
2137 | |
---|
2138 | assert allclose(domain.quantities['level'].centroid_values[:4], |
---|
2139 | [0.00206836, 0.01296714, 0.00363415, 0.01438924]) |
---|
2140 | assert allclose(domain.quantities['xmomentum'].centroid_values[:4], |
---|
2141 | [0.01360154, 0.00671133, 0.01264578, 0.00648503]) |
---|
2142 | assert allclose(domain.quantities['ymomentum'].centroid_values[:4], |
---|
2143 | [-1.19201077e-003, -7.23647546e-004, |
---|
2144 | -6.39083123e-005, 6.29815168e-005]) |
---|
2145 | |
---|
2146 | |
---|
2147 | def test_complex_bed(self): |
---|
2148 | #No friction is tested here |
---|
2149 | |
---|
2150 | from shallow_water import Domain, Reflective_boundary, Dirichlet_boundary,\ |
---|
2151 | Transmissive_boundary, Time_boundary,\ |
---|
2152 | Weir_simple as Weir, Constant_height |
---|
2153 | |
---|
2154 | from mesh_factory import rectangular |
---|
2155 | from Numeric import array |
---|
2156 | |
---|
2157 | N = 12 |
---|
2158 | points, vertices, boundary = rectangular(N, N/2, len1=1.2,len2=0.6, |
---|
2159 | origin=(-0.07, 0)) |
---|
2160 | |
---|
2161 | |
---|
2162 | domain = Domain(points, vertices, boundary) |
---|
2163 | domain.smooth = False |
---|
2164 | domain.visualise = False |
---|
2165 | domain.default_order=2 |
---|
2166 | |
---|
2167 | |
---|
2168 | inflow_stage = 0.1 |
---|
2169 | Z = Weir(inflow_stage) |
---|
2170 | domain.set_quantity('elevation', Z) |
---|
2171 | |
---|
2172 | Br = Reflective_boundary(domain) |
---|
2173 | Bd = Dirichlet_boundary([inflow_stage, 0.0, 0.0]) |
---|
2174 | domain.set_boundary({'left': Bd, 'right': Br, 'bottom': Br, 'top': Br}) |
---|
2175 | |
---|
2176 | domain.set_quantity('level', Constant_height(Z, 0.)) |
---|
2177 | |
---|
2178 | for t in domain.evolve(yieldstep = 0.02, finaltime = 0.2): |
---|
2179 | pass |
---|
2180 | |
---|
2181 | |
---|
2182 | #print domain.quantities['level'].centroid_values |
---|
2183 | |
---|
2184 | #FIXME: These numbers were from version before 25/10 |
---|
2185 | #assert allclose(domain.quantities['level'].centroid_values, |
---|
2186 | # [3.95822638e-002, 5.61022588e-002, 4.66437868e-002, 5.73081011e-002, |
---|
2187 | # 4.72394613e-002, 5.74684939e-002, 4.74309483e-002, 5.77458084e-002, |
---|
2188 | # 4.80628177e-002, 5.85656225e-002, 4.90498542e-002, 6.02609831e-002, |
---|
2189 | # 1.18470315e-002, 1.75136443e-002, 1.18035266e-002, 2.15565695e-002, |
---|
2190 | # 1.31620268e-002, 2.14351640e-002, 1.32351076e-002, 2.15450687e-002, |
---|
2191 | # 1.36414028e-002, 2.24274619e-002, 1.51689511e-002, 2.21789655e-002, |
---|
2192 | # -7.54337535e-003, -6.86362021e-004, -7.74146760e-003, -1.83756530e-003, |
---|
2193 | # -8.16773628e-003, -4.49916813e-004, -8.08202599e-003, -3.91118720e-004, |
---|
2194 | # -8.10292716e-003, -3.88584984e-004, -7.35226124e-003, 2.73985295e-004, |
---|
2195 | # 1.86166683e-001, 8.74070369e-002, 1.86166712e-001, 8.74035875e-002, |
---|
2196 | # 6.11666935e-002, -3.76173225e-002, -6.38333276e-002, -3.76147365e-002, |
---|
2197 | # 6.11666725e-002, 8.73846774e-002, 1.86166697e-001, 8.74171550e-002, |
---|
2198 | # -4.83333333e-002, 1.18333333e-001, -4.83333333e-002, 1.18333333e-001, |
---|
2199 | # -4.83333333e-002, -6.66666667e-003, -1.73333333e-001, -1.31666667e-001, |
---|
2200 | # -1.73333333e-001, -6.66666667e-003, -4.83333333e-002, 1.18333333e-001, |
---|
2201 | # -2.48333333e-001, -2.31666667e-001, -2.48333333e-001, -2.31666667e-001, |
---|
2202 | # -2.48333333e-001, -2.31666667e-001, -2.48333333e-001, -2.31666667e-001, |
---|
2203 | # -2.48333333e-001, -2.31666667e-001, -2.48333333e-001, -2.31666667e-001, |
---|
2204 | # -4.65000000e-001, -3.65000000e-001, -4.65000000e-001, -3.65000000e-001, |
---|
2205 | # -4.65000000e-001, -3.65000000e-001, -4.65000000e-001, -3.65000000e-001, |
---|
2206 | # -4.65000000e-001, -3.65000000e-001, -4.65000000e-001, -3.65000000e-001, |
---|
2207 | # -5.98333333e-001, -5.81666667e-001, -5.98333333e-001, -5.81666667e-001, |
---|
2208 | # -5.98333333e-001, -5.81666667e-001, -5.98333333e-001, -5.81666667e-001, |
---|
2209 | # -5.98333333e-001, -5.81666667e-001, -5.98333333e-001, -5.81666667e-001, |
---|
2210 | # -6.48333333e-001, -6.31666667e-001, -6.48333333e-001, -6.31666667e-001, |
---|
2211 | # -6.48333333e-001, -6.31666667e-001, -6.48333333e-001, -6.31666667e-001, |
---|
2212 | # -6.48333333e-001, -6.31666667e-001, -6.48333333e-001, -6.31666667e-001, |
---|
2213 | # -5.31666667e-001, -5.98333333e-001, -5.31666667e-001, -5.98333333e-001, |
---|
2214 | # -5.31666667e-001, -5.98333333e-001, -5.31666667e-001, -5.98333333e-001, |
---|
2215 | # -5.31666667e-001, -5.98333333e-001, -5.31666667e-001, -5.98333333e-001, |
---|
2216 | # -4.98333333e-001, -4.81666667e-001, -4.98333333e-001, -4.81666667e-001, |
---|
2217 | # -4.98333333e-001, -4.81666667e-001, -4.98333333e-001, -4.81666667e-001, |
---|
2218 | # -4.98333333e-001, -4.81666667e-001, -4.98333333e-001, -4.81666667e-001, |
---|
2219 | # -5.48333333e-001, -5.31666667e-001, -5.48333333e-001, -5.31666667e-001, |
---|
2220 | # -5.48333333e-001, -5.31666667e-001, -5.48333333e-001, -5.31666667e-001, |
---|
2221 | # -5.48333333e-001, -5.31666667e-001, -5.48333333e-001, -5.31666667e-001]) |
---|
2222 | |
---|
2223 | |
---|
2224 | |
---|
2225 | |
---|
2226 | #------------------------------------------------------------- |
---|
2227 | if __name__ == "__main__": |
---|
2228 | suite = unittest.makeSuite(TestCase,'test') |
---|
2229 | #suite = unittest.makeSuite(TestCase,'test_boundary_conditionsII') |
---|
2230 | runner = unittest.TextTestRunner() |
---|
2231 | runner.run(suite) |
---|
2232 | |
---|