| 1 | import inspect
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| 2 | import os.path
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| 3 | import numpy as np
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| 4 | from arch import *
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| 5 | from InterpFromMeshToMesh2d import InterpFromMeshToMesh2d
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| 6 | from paterson import paterson
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| 7 | from SetIceSheetBC import SetIceSheetBC
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| 8 | from verbose import verbose
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| 9 |
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| 10 | #Start defining model parameters here
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| 11 |
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| 12 | # Geometry
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| 13 | hmin = 300.0
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| 14 | hmax = 1000.0
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| 15 | ymin = np.min(md.mesh.y)
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| 16 | ymax = np.max(md.mesh.y)
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| 17 | xmin = np.min(md.mesh.x)
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| 18 | xmax = np.max(md.mesh.x)
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| 19 | md.geometry.thickness = hmax + (hmin - hmax) * (md.mesh.y - ymin) / (ymax - ymin) + 0.1 * (hmin - hmax) * (md.mesh.x - xmin) / (xmax - xmin)
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| 20 | md.geometry.base = -md.materials.rho_ice / md.materials.rho_water * md.geometry.thickness + 20.0
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| 21 | md.geometry.bed = md.geometry.base
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| 22 | md.geometry.surface = md.geometry.base + md.geometry.thickness
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| 23 |
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| 24 | #Initial velocity
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| 25 | x = np.array(archread('../Data/SquareSheetConstrained.arch', 'x'))
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| 26 | y = np.array(archread('../Data/SquareSheetConstrained.arch', 'y'))
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| 27 | vx = np.array(archread('../Data/SquareSheetConstrained.arch', 'vx'))
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| 28 | vy = np.array(archread('../Data/SquareSheetConstrained.arch', 'vy'))
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| 29 | index = archread('../Data/SquareSheetConstrained.arch', 'index').astype(int)
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| 30 |
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| 31 | md.initialization.vx = InterpFromMeshToMesh2d(index, x, y, vx, md.mesh.x, md.mesh.y)
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| 32 | md.initialization.vy = InterpFromMeshToMesh2d(index, x, y, vy, md.mesh.x, md.mesh.y)
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| 33 | md.initialization.vz = np.zeros((md.mesh.numberofvertices))
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| 34 | md.initialization.pressure = np.zeros((md.mesh.numberofvertices))
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| 35 |
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| 36 | #Materials
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| 37 | md.initialization.temperature = (273.0 - 20.0) * np.ones((md.mesh.numberofvertices))
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| 38 | md.materials.rheology_B = paterson(md.initialization.temperature)
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| 39 | md.materials.rheology_n = 3.0 * np.ones((md.mesh.numberofelements))
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| 40 |
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| 41 | #Calving
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| 42 | md.calving.calvingrate = np.zeros((md.mesh.numberofvertices))
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| 43 | md.levelset.spclevelset = np.nan * np.ones((md.mesh.numberofvertices))
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| 44 |
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| 45 | #Friction
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| 46 | md.friction.coefficient = 20.0 * np.ones((md.mesh.numberofvertices))
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| 47 | md.friction.coefficient[np.where(md.mask.ocean_levelset < 0.0)[0]] = 0.0
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| 48 | md.friction.p = np.ones((md.mesh.numberofelements))
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| 49 | md.friction.q = np.ones((md.mesh.numberofelements))
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| 50 |
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| 51 | #Numerical parameters
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| 52 | md.masstransport.stabilization = 1.0
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| 53 | md.thermal.stabilization = 1.0
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| 54 | md.verbose = verbose(0)
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| 55 | md.settings.waitonlock = 30
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| 56 | md.stressbalance.restol = 0.05
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| 57 | md.steadystate.reltol = 0.05
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| 58 | md.stressbalance.reltol = 0.05
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| 59 | md.stressbalance.abstol = np.nan
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| 60 | md.timestepping.time_step = 1.0
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| 61 | md.timestepping.final_time = 3.0
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| 62 | md.groundingline.migration = 'None'
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| 63 |
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| 64 | #Boundary conditions:
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| 65 | md = SetIceSheetBC(md)
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| 66 |
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| 67 | #Change name so that no test have the same name
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| 68 | if len(inspect.stack()) > 2:
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| 69 | md.miscellaneous.name = os.path.basename(inspect.stack()[2][1]).split('.')[0]
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