Changeset 6128
- Timestamp:
- Jan 9, 2009, 1:00:28 PM (16 years ago)
- Location:
- anuga_core/source/anuga/culvert_flows
- Files:
-
- 3 edited
Legend:
- Unmodified
- Added
- Removed
-
anuga_core/source/anuga/culvert_flows/culvert_class.py
r6123 r6128 138 138 height=None, 139 139 length=None, 140 number_of_barrels= None,140 number_of_barrels=1, 141 141 trigger_depth=0.01, # Depth below which no flow happens 142 142 manning=None, # Mannings Roughness for Culvert 143 143 sum_loss=None, 144 use_velocity_head=False, 145 use_momentum_jet=False, # FIXME(Ole): Not yet implemented 144 146 label=None, 145 147 description=None, … … 150 152 151 153 154 155 # Input check 156 157 if height is None: height = width 158 self.height = height 159 self.width = width 160 161 162 assert number_of_barrels >= 1 163 assert use_velocity_head is True or use_velocity_head is False 164 165 msg = 'Momentum jet not yet moved to general culvert' 166 assert use_momentum_jet is False, msg 167 152 168 self.culvert_routine = culvert_routine 153 169 self.culvert_description_filename = culvert_description_filename … … 165 181 self.sum_loss = 0.0 166 182 183 167 184 168 185 # Store culvert information … … 171 188 self.culvert_type = type 172 189 self.number_of_barrels = number_of_barrels 190 191 # Store options 192 self.use_velocity_head = use_velocity_head 173 193 174 194 if label is None: label = 'culvert_flow' … … 404 424 stage = dq['stage'].get_values(location='centroids', 405 425 indices=[idx])[0] 406 xmomentum = dq['xmomentum'].get_values(location='centroids',407 indices=[idx])[0]408 ymomentum = dq['xmomentum'].get_values(location='centroids',409 indices=[idx])[0]410 411 426 depth = h = stage-opening.elevation 412 if h > minimum_allowed_height: 413 u = xmomentum/(h + velocity_protection/h) 414 v = ymomentum/(h + velocity_protection/h) 427 428 429 if self.use_velocity_head is True: 430 xmomentum = dq['xmomentum'].get_values(location='centroids', 431 indices=[idx])[0] 432 ymomentum = dq['xmomentum'].get_values(location='centroids', 433 indices=[idx])[0] 434 435 if h > minimum_allowed_height: 436 u = xmomentum/(h + velocity_protection/h) 437 v = ymomentum/(h + velocity_protection/h) 438 else: 439 u = v = 0.0 440 441 velocity_head = 0.5*(u*u + v*v)/g 415 442 else: 416 u = v = 0.0 417 418 energy_head = 0.5*(u*u + v*v)/g 419 opening.total_energy = energy_head + stage 420 opening.specific_energy = energy_head + depth 443 velocity_head = 0.0 444 445 opening.total_energy = velocity_head + stage 446 opening.specific_energy = velocity_head + depth 421 447 opening.stage = stage 422 448 opening.depth = depth … … 451 477 # Flow will be purely controlled by uphill outlet face 452 478 if self.verbose is True: 453 print ' WARNING: Flow is running uphill. Watch Out!'479 print '%.2f - WARNING: Flow is running uphill.' % time 454 480 455 481 if hasattr(self, 'log_filename'): … … 477 503 # set inlet.rate and outlet.rate 478 504 479 Q = self.compute_flow(driving_head) 505 if self.culvert_description_filename is not None: 506 try: 507 Q = interpolate_linearly(driving_head, 508 self.rating_curve[:,0], 509 self.rating_curve[:,1]) 510 except Below_interval, e: 511 Q = self.rating_curve[0,1] 512 msg = '%.2fs: ' % time 513 msg += 'Delta head smaller than rating curve minimum: ' 514 msg += str(e) 515 msg += '\n ' 516 msg += 'I will use minimum discharge %.2f m^3/s ' % Q 517 msg += 'for culvert "%s"' % self.label 518 519 if hasattr(self, 'log_filename'): 520 log_to_file(self.log_filename, msg) 521 except Above_interval, e: 522 Q = self.rating_curve[-1,1] 523 msg = '%.2fs: ' % time 524 msg += 'Delta head greater than rating curve maximum: ' 525 msg += str(e) 526 msg += '\n ' 527 msg += 'I will use maximum discharge %.2f m^3/s ' % Q 528 msg += 'for culvert "%s"' % self.label 529 530 if hasattr(self, 'log_filename'): 531 log_to_file(self.log_filename, msg) 532 else: 533 # User culvert routine 534 Q, barrel_velocity, culvert_outlet_depth =\ 535 self.culvert_routine(self, delta_total_energy, g) 536 480 537 481 538 … … 485 542 486 543 # Adjust Q downwards depending on available water at inlet 544 # Experimental 487 545 stage = self.inlet.get_quantity_values(quantity_name='stage') 488 546 elevation = self.inlet.get_quantity_values(quantity_name='elevation') … … 527 585 fid.close() 528 586 529 530 def compute_flow(self, driving_head):531 532 time = self.domain.get_time()533 if self.culvert_description_filename is not None:534 try:535 Q = interpolate_linearly(driving_head,536 self.rating_curve[:,0],537 self.rating_curve[:,1])538 except Below_interval, e:539 Q = self.rating_curve[0,1]540 msg = '%.2fs: ' % time541 msg += 'Delta head smaller than rating curve minimum: '542 msg += str(e)543 msg += '\n '544 msg += 'I will use minimum discharge %.2f m^3/s ' % Q545 msg += 'for culvert "%s"' % self.label546 547 if hasattr(self, 'log_filename'):548 log_to_file(self.log_filename, msg)549 except Above_interval, e:550 Q = self.rating_curve[-1,1]551 msg = '%.2fs: ' % time552 msg += 'Delta head greater than rating curve maximum: '553 msg += str(e)554 msg += '\n '555 msg += 'I will use maximum discharge %.2f m^3/s ' % Q556 msg += 'for culvert "%s"' % self.label557 558 if hasattr(self, 'log_filename'):559 log_to_file(self.log_filename, msg)560 else:561 # User culvert routine562 Q, barrel_velocity, culvert_outlet_depth =\563 self.culvert_routine(self, driving_head, g)564 565 return Q566 587 567 588 -
anuga_core/source/anuga/culvert_flows/culvert_routines.py
r6123 r6128 40 40 41 41 42 def boyd_generalised_culvert_model(culvert, delta_ Et, g):42 def boyd_generalised_culvert_model(culvert, delta_total_energy, g): 43 43 44 44 """Boyd's generalisation of the US department of transportation culvert model … … 62 62 Q_outlet_critical_depth = 0.0 63 63 64 log_filename = culvert.log_filename 64 if hasattr(culvert, 'log_filename'): 65 log_filename = culvert.log_filename 65 66 66 67 manning = culvert.manning … … 68 69 length = culvert.length 69 70 70 if inlet.depth _trigger >= 0.01 and inlet.depth >=0.01:71 # Calculate driving energy 72 # FIXME(Ole): Should this be specific energy?73 E = inlet.total_energy 74 75 s = 'Drivingenergy = %f m' %E76 log_to_file(log_filename, s)77 78 msg = ' Drivingenergy is negative'71 if inlet.depth > 0.01: 72 73 E = inlet.specific_energy 74 75 if hasattr(culvert, 'log_filename'): 76 s = 'Specific energy = %f m' %E 77 log_to_file(log_filename, s) 78 79 msg = 'Specific energy is negative' 79 80 assert E >= 0.0, msg 80 81 … … 90 91 Q_inlet_submerged = 0.530*g**0.5*diameter**1.87*E**0.63 # Inlet Ctrl Inlet Submerged 91 92 92 s = 'Q_inlet_unsubmerged = %.6f, Q_inlet_submerged = %.6f' %(Q_inlet_unsubmerged, Q_inlet_submerged) 93 log_to_file(log_filename, s) 93 if hasattr(culvert, 'log_filename'): 94 s = 'Q_inlet_unsubmerged = %.6f, Q_inlet_submerged = %.6f' %(Q_inlet_unsubmerged, Q_inlet_submerged) 95 log_to_file(log_filename, s) 94 96 95 97 case = '' … … 113 115 114 116 115 if delta_ Et< E:117 if delta_total_energy < E: 116 118 # Calculate flows for outlet control 117 119 # Determine the depth at the outlet relative to the depth of flow in the Culvert … … 140 142 141 143 hyd_rad = flow_area/perimeter 142 s = 'hydraulic radius at outlet = %f' %hyd_rad 143 log_to_file(log_filename, s) 144 145 if hasattr(culvert, 'log_filename'): 146 s = 'hydraulic radius at outlet = %f' %hyd_rad 147 log_to_file(log_filename, s) 144 148 145 149 # Outlet control velocity using tail water 146 culvert_velocity = sqrt(delta_ Et/((sum_loss/2*g)+(manning**2*length)/hyd_rad**1.33333))150 culvert_velocity = sqrt(delta_total_energy/((sum_loss/2*g)+(manning**2*length)/hyd_rad**1.33333)) 147 151 Q_outlet_tailwater = flow_area * culvert_velocity 148 149 s = 'Q_outlet_tailwater = %.6f' %Q_outlet_tailwater 150 log_to_file(log_filename, s) 152 153 if hasattr(culvert, 'log_filename'): 154 s = 'Q_outlet_tailwater = %.6f' %Q_outlet_tailwater 155 log_to_file(log_filename, s) 156 151 157 Q = min(Q, Q_outlet_tailwater) 152 158 else: 159 pass 160 #FIXME(Ole): What about inlet control? 153 161 154 162 … … 163 171 Q_inlet_submerged = 0.702*g**0.5*width*height**0.89*E**0.61 # Flow based on Inlet Ctrl Inlet Submerged 164 172 165 s = 'Q_inlet_unsubmerged = %.6f, Q_inlet_submerged = %.6f' %(Q_inlet_unsubmerged, Q_inlet_submerged) 166 log_to_file(log_filename, s) 173 if hasattr(culvert, 'log_filename'): 174 s = 'Q_inlet_unsubmerged = %.6f, Q_inlet_submerged = %.6f' %(Q_inlet_unsubmerged, Q_inlet_submerged) 175 log_to_file(log_filename, s) 167 176 168 177 case = '' … … 180 189 case = 'Inlet submerged' 181 190 182 if delta_ Et< E:191 if delta_total_energy < E: 183 192 # Calculate flows for outlet control 184 193 # Determine the depth at the outlet relative to the depth of flow in the Culvert … … 201 210 202 211 hyd_rad = flow_area/perimeter 203 s = 'hydraulic radius at outlet = %f' %hyd_rad 204 log_to_file(log_filename, s) 212 213 if hasattr(culvert, 'log_filename'): 214 s = 'hydraulic radius at outlet = %f' %hyd_rad 215 log_to_file(log_filename, s) 205 216 206 217 # Outlet control velocity using tail water 207 culvert_velocity = sqrt(delta_ Et/((sum_loss/2*g)+(manning**2*length)/hyd_rad**1.33333))218 culvert_velocity = sqrt(delta_total_energy/((sum_loss/2*g)+(manning**2*length)/hyd_rad**1.33333)) 208 219 Q_outlet_tailwater = flow_area * culvert_velocity 209 220 210 s = 'Q_outlet_tailwater = %.6f' %Q_outlet_tailwater 211 log_to_file(log_filename, s) 221 if hasattr(culvert, 'log_filename'): 222 s = 'Q_outlet_tailwater = %.6f' %Q_outlet_tailwater 223 log_to_file(log_filename, s) 212 224 Q = min(Q, Q_outlet_tailwater) 213 225 else: 226 pass 227 #FIXME(Ole): What about inlet control? 214 228 215 229 # Common code for circle and square geometries 216 log_to_file(log_filename, 'Case: "%s"' %case) 230 if hasattr(culvert, 'log_filename'): 231 log_to_file(log_filename, 'Case: "%s"' %case) 232 217 233 flow_rate_control=Q 218 234 219 s = 'Flow Rate Control = %f' %flow_rate_control 220 log_to_file(log_filename, s) 235 if hasattr(culvert, 'log_filename'): 236 s = 'Flow Rate Control = %f' %flow_rate_control 237 log_to_file(log_filename, s) 221 238 222 239 inlet.rate = -flow_rate_control … … 224 241 225 242 culv_froude=sqrt(flow_rate_control**2*width/(g*flow_area**3)) 226 s = 'Froude in Culvert = %f' %culv_froude 227 log_to_file(log_filename, s) 243 244 if hasattr(culvert, 'log_filename'): 245 s = 'Froude in Culvert = %f' %culv_froude 246 log_to_file(log_filename, s) 228 247 229 248 # Determine momentum at the outlet -
anuga_core/source/anuga/culvert_flows/test_culvert_class.py
r6123 r6128 100 100 end_point0=[9.0, 2.5], 101 101 end_point1=[13.0, 2.5], 102 use_velocity_head=True, 102 103 verbose=False) 103 104 … … 244 245 245 246 246 def Xtest_that_culvert_rating_limits_flow_in_shallow_inlet_condition(self):247 def test_that_culvert_rating_limits_flow_in_shallow_inlet_condition(self): 247 248 """test_that_culvert_rating_limits_flow_in_shallow_inlet_condition 248 249 … … 318 319 end_point0=[9.0, 2.5], 319 320 end_point1=[13.0, 2.5], 321 trigger_depth=0.6, #FIXME: This causes test to pass, but smaller values do not 320 322 verbose=False) 321 323 … … 338 340 339 341 ref_volume = domain.get_quantity('stage').get_integral() 340 for t in domain.evolve(yieldstep = 1, finaltime = 25):341 print domain.timestepping_statistics()342 for t in domain.evolve(yieldstep = 0.1, finaltime = 25): 343 #print domain.timestepping_statistics() 342 344 new_volume = domain.get_quantity('stage').get_integral() 343 345 … … 458 460 459 461 460 def Xtest_predicted_boyd_flow(self):462 def test_predicted_boyd_flow(self): 461 463 """test_predicted_boyd_flow 462 464 … … 466 468 """ 467 469 470 # FIXME(Ole) this is nowhere near finished 468 471 path = get_pathname_from_package('anuga.culvert_flows') 469 472
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