1 | #Test Name: SquareSheetHydrologyGlaDS
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2 | import numpy as np
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3 | from model import *
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4 | from triangle import triangle
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5 | from setmask import setmask
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6 | from setflowequation import setflowequation
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7 | from parameterize import parameterize
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8 | from solve import solve
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9 | from SetIceSheetBC import SetIceSheetBC
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10 | from generic import generic
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11 |
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12 | # Create model
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13 | md = triangle(model(), '../Exp/Square.exp', 50000.)
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14 | md.mesh.x = md.mesh.x / 100
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15 | md.mesh.y = md.mesh.y / 100
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16 | md.miscellaneous.name = 'testChannels'
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17 |
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18 | # Miscellaneous
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19 | md = setmask(md, '', '') # Everywhere grounded
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20 | md = setflowequation(md, 'SSA', 'all')
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21 | md.stressbalance.maxiter = 2 # Make sure it runs quickly...
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22 |
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23 | # Some constants
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24 | md.constants.g = 9.8
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25 | md.materials.rho_ice = 910
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26 |
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27 | # Geometry
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28 | md.geometry.surface = -0.02 * md.mesh.x + 320
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29 | md.geometry.bed = np.zeros((md.mesh.numberofvertices))
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30 | md.geometry.base = md.geometry.bed
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31 | md.geometry.thickness = md.geometry.surface - md.geometry.bed
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32 |
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33 | # Define initial conditions
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34 | md.initialization.vx = 1.0e-6 * md.constants.yts * np.ones((md.mesh.numberofvertices))
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35 | md.initialization.vy = np.zeros((md.mesh.numberofvertices))
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36 | md.initialization.temperature = (273. - 20.) * np.ones((md.mesh.numberofvertices))
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37 | md.initialization.watercolumn = 0.03 * np.ones((md.mesh.numberofvertices))
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38 | md.initialization.hydraulic_potential = md.materials.rho_ice * md.constants.g * md.geometry.thickness
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39 |
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40 | #cMaterials
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41 | md.materials.rheology_B = (5e-25)**(-1./3.) * np.ones((md.mesh.numberofvertices))
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42 | md.materials.rheology_n = 3. * np.ones((md.mesh.numberofelements))
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43 |
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44 | #cFriction
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45 | md.friction.coefficient = np.zeros((md.mesh.numberofvertices))
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46 | md.friction.p = np.ones((md.mesh.numberofelements))
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47 | md.friction.q = np.ones((md.mesh.numberofelements))
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48 | #md.friction.coupling = 0
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49 |
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50 | #Bcoundary conditions:
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51 | md = SetIceSheetBC(md)
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52 |
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53 | md.inversion.iscontrol = 0
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54 | md.transient = transient.deactivateall(md.transient)
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55 | md.transient.ishydrology = 1
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56 |
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57 | # Set numerical conditions
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58 | md.timestepping.time_step = 0.1 / 365
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59 | md.timestepping.final_time = 0.4 / 365
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60 |
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61 | #Change hydrology class to Glads model
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62 | md.hydrology = hydrologyglads()
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63 | md.hydrology.ischannels = 1
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64 | md.hydrology.englacial_void_ratio = 1.e-5
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65 | md.hydrology.moulin_input = np.zeros((md.mesh.numberofvertices))
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66 | md.hydrology.neumannflux = np.zeros((md.mesh.numberofelements))
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67 | md.hydrology.bump_height = 1.e-1 * np.ones((md.mesh.numberofvertices))
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68 | md.hydrology.sheet_conductivity = 1.e-3 * np.ones((md.mesh.numberofvertices))
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69 | md.hydrology.channel_conductivity = 5.e-2 * np.ones((md.mesh.numberofvertices))
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70 |
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71 | # BCs for hydrology
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72 | pos = np.where(np.logical_and(md.mesh.x == 100, md.mesh.vertexonboundary))
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73 | md.hydrology.spcphi = np.nan * np.ones((md.mesh.numberofvertices))
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74 | md.hydrology.spcphi[pos] = md.materials.rho_ice * md.constants.g * md.geometry.thickness[pos]
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75 |
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76 | md.cluster = generic('np', 2)
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77 | md = solve(md, 'Transient') # Or 'tr'
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78 |
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79 | # Fields and tolerances to track changes
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80 | field_names = ['HydrologySheetThickness1', 'HydraulicPotential1', 'ChannelArea1',
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81 | 'HydrologySheetThickness2', 'HydraulicPotential2', 'ChannelArea2',
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82 | 'HydrologySheetThickness3', 'HydraulicPotential3', 'ChannelArea3',
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83 | 'HydrologySheetThickness4', 'HydraulicPotential4', 'ChannelArea4']
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84 | field_tolerances = [5e-11, 2e-08, 3e-07,
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85 | 2e-10, 2e-08, 4e-07,
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86 | 3e-10, 2e-08, 4e-07,
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87 | 4e-10, 1e-08, 4e-07]
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88 | field_values = [md.results.TransientSolution[0].HydrologySheetThickness,
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89 | md.results.TransientSolution[0].HydraulicPotential,
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90 | md.results.TransientSolution[0].ChannelArea,
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91 | md.results.TransientSolution[1].HydrologySheetThickness,
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92 | md.results.TransientSolution[1].HydraulicPotential,
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93 | md.results.TransientSolution[1].ChannelArea,
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94 | md.results.TransientSolution[2].HydrologySheetThickness,
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95 | md.results.TransientSolution[2].HydraulicPotential,
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96 | md.results.TransientSolution[2].ChannelArea,
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97 | md.results.TransientSolution[3].HydrologySheetThickness,
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98 | md.results.TransientSolution[3].HydraulicPotential,
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99 | md.results.TransientSolution[3].ChannelArea]
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