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# $Id$ |
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# |
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# |
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# a very simple convection model in model frame: |
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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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import os |
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from esys.escript.modelframe import Link,Simulation |
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from esys.modellib.geometry import RectangularDomain,ScalarConstrainer,VectorConstrainer |
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from esys.modellib.input import Sequencer,InterpolateOverBox,GaussianProfile,LinearCombination |
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from esys.modellib.flow import SteadyIncompressibleFlow |
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from esys.modellib.temperature import TemperatureAdvection |
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from esys.modellib.materials import SimpleEarthModel,GravityForce |
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from esys.modellib.visualization import WriteVTK |
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|
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try: |
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WORKDIR=os.environ['MODELLIB_WORKDIR'] |
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except KeyError: |
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WORKDIR='.' |
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|
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dom=RectangularDomain() |
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dom.order=2 |
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temp_constraints=ScalarConstrainer() |
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temp_constraints.domain=Link(dom) |
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temp_constraints.top=1 |
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temp_constraints.bottom=1 |
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vel_constraints=VectorConstrainer() |
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vel_constraints.domain=Link(dom) |
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vel_constraints.left=[1,0,0] |
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vel_constraints.right=[1,0,0] |
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vel_constraints.top=[0,1,0] |
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vel_constraints.bottom=[0,1,0] |
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vel_constraints.front=[0,0,1] |
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vel_constraints.back=[0,0,1] |
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temp_val=InterpolateOverBox() |
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temp_val.domain=Link(dom,"domain") |
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temp_val.right_top_back=Link(dom,"l") |
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temp_val.value_left_bottom_front=1. |
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temp_val.value_right_bottom_front=1. |
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temp_val.value_left_top_front=0. |
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temp_val.value_right_top_front=0. |
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temp_val.value_left_bottom_back=1. |
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temp_val.value_right_bottom_back=1. |
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temp_val.value_left_top_back=0. |
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temp_val.value_right_top_back=0. |
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mat=SimpleEarthModel() |
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mat.density0=1. |
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mat.viscocity0=1. |
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mat.rayleigh_number=10000. |
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mat.alpha=0.001 |
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temp=TemperatureAdvection(debug=True) |
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temp.domain=Link(dom) |
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temp.density=Link(mat,"density0") |
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temp.heat_capacity=Link(mat,"heat_capacity") |
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temp.location_fixed_temperature=Link(temp_constraints,"location_of_constraint") |
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temp.fixed_temperature=Link(temp_val,"out") |
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temp.safety_factor=0.01 |
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mat.temperature=Link(temp,"temperature") |
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grav=GravityForce() |
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grav.domain=Link(dom,"domain") |
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grav.direction=[0.,-1.,0.] |
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grav.density=Link(mat,"density") |
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grav.gravity=Link(mat,"gravity") |
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vel=SteadyIncompressibleFlow(debug=True) |
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vel.domain=Link(dom) |
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vel.internal_force=Link(grav,"gravity_force") |
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vel.viscosity=Link(mat,"viscosity") |
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vel.location_prescribed_velocity=Link(vel_constraints,"location_of_constraint") |
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vel.rel_tol=1.e-6 |
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temp.velocity=Link(vel,"velocity") |
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sq=Sequencer() |
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sq.t_end=0.005 |
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vis=WriteVTK() |
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vis.t=Link(sq) |
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vis.scalar=Link(temp,"temperature") |
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vis.vector=Link(vel,"velocity") |
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vis.dt=0.0005 |
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vis.filename=WORKDIR+"/temp.xml" |
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per=GaussianProfile() |
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per.domain=Link(dom) |
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per.x_c=[0.5,0.5,0.5] |
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per.A=0.0001 |
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per.width=0.01 |
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per.r=0 |
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lc=LinearCombination() |
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lc.f0=1. |
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lc.v0=Link(per,"out") |
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lc.f1=1. |
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lc.v1=Link(temp_val,"out") |
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temp.temperature=Link(lc,"out") |
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s=Simulation([sq,Simulation([vel],debug=True),temp,vis],debug=True) |
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s.writeXML() |
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s.run() |
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