| [8728] | 1 | """Simple water flow example using ANUGA |
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| 2 | |
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| 3 | Water flowing down a channel |
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| 4 | """ |
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| 5 | |
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| 6 | #------------------------------------------------------------------------------ |
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| 7 | # Import necessary modules |
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| 8 | #------------------------------------------------------------------------------ |
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| 9 | import anuga |
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| 10 | |
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| 11 | #------------------------------------------------------------------------------ |
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| 12 | # Setup computational domain |
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| 13 | #------------------------------------------------------------------------------ |
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| [8974] | 14 | # Create a domain with named boundaries "left", "right", "top" and "bottom" |
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| [8976] | 15 | domain = anuga.rectangular_cross_domain(10, 5, len1=10.0, len2=5.0) |
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| [8728] | 16 | |
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| [8974] | 17 | |
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| [8728] | 18 | domain.set_name('channel1') # Output name |
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| 19 | |
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| 20 | #------------------------------------------------------------------------------ |
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| 21 | # Setup initial conditions |
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| 22 | #------------------------------------------------------------------------------ |
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| 23 | def topography(x, y): |
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| 24 | return -x/10 # linear bed slope |
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| 25 | |
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| 26 | domain.set_quantity('elevation', topography) # Use function for elevation |
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| 27 | domain.set_quantity('friction', 0.01) # Constant friction |
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| 28 | domain.set_quantity('stage', # Dry bed |
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| 29 | expression='elevation') |
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| 30 | |
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| 31 | #------------------------------------------------------------------------------ |
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| 32 | # Setup boundary conditions |
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| 33 | #------------------------------------------------------------------------------ |
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| 34 | Bi = anuga.Dirichlet_boundary([0.4, 0, 0]) # Inflow |
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| 35 | Br = anuga.Reflective_boundary(domain) # Solid reflective wall |
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| 36 | |
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| 37 | domain.set_boundary({'left': Bi, 'right': Br, 'top': Br, 'bottom': Br}) |
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| 38 | |
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| 39 | #------------------------------------------------------------------------------ |
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| 40 | # Evolve system through time |
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| 41 | #------------------------------------------------------------------------------ |
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| 42 | for t in domain.evolve(yieldstep=0.2, finaltime=40.0): |
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| [8974] | 43 | domain.print_timestepping_statistics() |
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| [8728] | 44 | |
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