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# |
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# $Id$ |
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# |
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####################################################### |
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# |
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# Copyright 2003-2007 by ACceSS MNRF |
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# Copyright 2007 by University of Queensland |
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# |
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# http://esscc.uq.edu.au |
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# Primary Business: Queensland, Australia |
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# Licensed under the Open Software License version 3.0 |
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# http://www.opensource.org/licenses/osl-3.0.php |
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# |
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####################################################### |
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# |
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|
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__copyright__=""" Copyright (c) 2006 by ACcESS MNRF |
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http://www.access.edu.au |
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Primary Business: Queensland, Australia""" |
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__license__="""Licensed under the Open Software License version 3.0 |
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http://www.opensource.org/licenses/osl-3.0.php""" |
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|
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from esys.escript.modelframe import Model,ParameterSet |
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from esys.escript.util import exp |
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import numarray |
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|
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class GravityForce(ParameterSet): |
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""" |
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Sets a gravity force of given direction in given domain: |
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|
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@ivar domain: domain of interest (in). |
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@type domain: L{esys.escript.Domain} |
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@ivar density: density, default 1 (in). |
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@ivar gravity: the gravity constant, default 9.81 (in). |
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@ivar direction: the direction of gravity, default [1.,0.,0.] (in). |
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""" |
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def __init__(self,**kwargs): |
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""" |
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initializes the set |
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""" |
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super(GravityForce, self).__init__(**kwargs) |
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self.declareParameter(domain=None, |
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gravity=9.81, \ |
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density=1., \ |
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direction=[1.,0.,0.]) |
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|
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def gravity_force(self): |
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""" |
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return the gravity force as L{density}*L{gravity}*L{direction} |
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""" |
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if isinstance(self.direction,list): |
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dir=numarray.array(self.direction[:self.domain.getDim()]) |
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else: |
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dir=self.direction[:self.domain.getDim()] |
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return self.gravity*self.density*dir |
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|
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|
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|
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class MaterialTable(ParameterSet): |
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""" |
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A simple matrial table which allows setting physical ivar of a model |
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|
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@ivar density (in/out): density |
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@ivar heat_capacity (in/out): heat_capacity |
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@ivar thermal_permabilty (in/out): permabilty |
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@ivar viscosity (in/out): viscosity |
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@ivar radiation_coefficient (in/out): |
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""" |
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def __init__(self,**kwargs): |
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super(MaterialTable, self).__init__(**kwargs) |
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self.declareParameter(gravity=9.81, \ |
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density=1., \ |
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heat_capacity=1., \ |
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thermal_permabilty=1., \ |
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radiation_coefficient=0.) |
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|
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class SimpleEarthModel(ParameterSet): |
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""" |
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B simple matrial table run convection models:: |
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|
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density=density0*(1-expansion_coefficient*(temperature-reference_temperature)) |
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viscocity=viscocity0*(exp(alpha*(1/reference_temperature - 1/temperature)) |
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|
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@ivar gravity (in): gravity constants (9.81) |
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@ivar reference_temperature (in): reference temperature |
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@ivar density0 (in): density at reference temperature |
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@ivar viscosity0 (in): viscosity0 at reference temperature |
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@ivar alpha (in): viscosity contrast |
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@ivar expansion_coefficient (in): Raleigh number |
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@ivar heat_capacity (in): heat capacity |
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@ivar thermal_permabilty (in): permabilty |
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@ivar temperature (in): temperature |
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@ivar viscosity (out): viscosity |
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@ivar density (out): density |
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""" |
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def __init__(self,**kwargs): |
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super(SimpleEarthModel, self).__init__(**kwargs) |
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self.declareParameter(reference_temperature=1., |
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gravity=9.81, \ |
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density0=1., \ |
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expansion_coefficient=0., \ |
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viscosity0=1., \ |
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alpha=0., \ |
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temperature=0.,\ |
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heat_capacity=1., \ |
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thermal_permabilty=1.) |
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|
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def density(self): |
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return self.density0*(1-self.expansion_coefficient*(self.temperature-self.reference_temperature)) |
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|
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def viscosity(self): |
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return self.viscosity0*exp(self.alpha*(1/self.reference_temperature - 1/(self.temperature+1.e-15))) |
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|
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class SimpleSolidMaterial(MaterialTable): |
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""" |
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A simple matrial table which allows setting physical parameters of |
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a model. |
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|
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@ivar density (in/out): density |
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@ivar heat_capacity (in/out): heat_capacity |
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@ivar thermal_permabilty (in/out): permabilty |
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@ivar viscosity (in/out): viscosity |
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@ivar radiation_coefficient (in/out): |
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""" |
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def __init__(self,**kwargs): |
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super(MaterialTable, self).__init__(**kwargs) |
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self.declareParameter(lame_lambda=1.,\ |
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lame_my=1.) |
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|
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class SimpleFluidMaterial(MaterialTable): |
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""" |
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A simple matrial table which allows setting physical ivar of a model. |
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|
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@ivar density (in/out): density |
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@ivar heat_capacity (in/out): heat_capacity |
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@ivar thermal_permabilty (in/out): permabilty |
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@ivar viscosity (in/out): viscosity |
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@ivar radiation_coefficient (in/out): |
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""" |
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def __init__(self,**kwargs): |
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super(MaterialTable, self).__init__(**kwargs) |
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self.declareParameter(viscosity=1., \ |
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hydraulic_conductivity=1.e-4) |
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|
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# vim: expandtab shiftwidth=4: |
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