/[escript]/trunk/modellib/test/python/run_convection.py
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Contents of /trunk/modellib/test/python/run_convection.py

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Revision 823 - (show annotations)
Tue Aug 29 02:05:59 2006 UTC (13 years, 11 months ago) by gross
File MIME type: text/x-python
File size: 3026 byte(s)
geometry.py is back to the way it was.
1 # $Id$
2
3 #
4 #
5 # a very simple convection model in model frame:
6 #
7
8 __copyright__=""" Copyright (c) 2006 by ACcESS MNRF
9 http://www.access.edu.au
10 Primary Business: Queensland, Australia"""
11 __license__="""Licensed under the Open Software License version 3.0
12 http://www.opensource.org/licenses/osl-3.0.php"""
13
14 import os
15 from esys.escript.modelframe import Link,Simulation
16 from esys.modellib.geometry import RectangularDomain,ScalarConstrainer,VectorConstrainer
17 from esys.modellib.input import Sequencer,InterpolateOverBox,GaussianProfile,LinearCombination
18 from esys.modellib.flow import SteadyIncompressibleFlow
19 from esys.modellib.temperature import TemperatureAdvection
20 from esys.modellib.materials import SimpleEarthModel,GravityForce
21 from esys.modellib.visualization import WriteVTK
22
23 try:
24 WORKDIR=os.environ['MODELLIB_WORKDIR']
25 except KeyError:
26 WORKDIR='.'
27
28
29 dom=RectangularDomain()
30 dom.order=2
31
32 temp_val=InterpolateOverBox()
33 temp_val.domain=Link(dom,"domain")
34 temp_val.value_left_bottom_front=1.
35 temp_val.value_right_bottom_front=1.
36 temp_val.value_left_top_front=0.
37 temp_val.value_right_top_front=0.
38 temp_val.value_left_bottom_back=1.
39 temp_val.value_right_bottom_back=1.
40 temp_val.value_left_top_back=0.
41 temp_val.value_right_top_back=0.
42
43 temp_constraints=ScalarConstrainer()
44 temp_constraints.domain=Link(dom)
45 temp_constraints.top=1
46 temp_constraints.bottom=1
47
48 vel_constraints=VectorConstrainer()
49 vel_constraints.domain=Link(dom)
50 vel_constraints.left=[1,0,0]
51 vel_constraints.right=[1,0,0]
52 vel_constraints.top=[0,1,0]
53 vel_constraints.bottom=[0,1,0]
54 vel_constraints.front=[0,0,1]
55 vel_constraints.back=[0,0,1]
56
57 mat=SimpleEarthModel()
58 mat.density0=1.
59 mat.viscocity0=1.
60 mat.rayleigh_number=10000.
61 mat.alpha=0.001
62
63 temp=TemperatureAdvection(debug=True)
64 temp.domain=Link(dom)
65 temp.density=Link(mat,"density0")
66 temp.heat_capacity=Link(mat,"heat_capacity")
67 temp.location_fixed_temperature=Link(temp_constraints,"location_of_constraint")
68 temp.fixed_temperature=Link(temp_val,"out")
69 temp.safety_factor=0.01
70 mat.temperature=Link(temp,"temperature")
71
72
73 grav=GravityForce()
74 grav.domain=Link(dom,"domain")
75 grav.direction=[0.,-1.,0.]
76 grav.density=Link(mat,"density")
77 grav.gravity=Link(mat,"gravity")
78
79
80 vel=SteadyIncompressibleFlow(debug=True)
81 vel.domain=Link(dom)
82 vel.internal_force=Link(grav,"gravity_force")
83 vel.viscosity=Link(mat,"viscosity")
84 vel.location_prescribed_velocity=Link(vel_constraints,"location_of_constraint")
85 vel.rel_tol=1.e-6
86 temp.velocity=Link(vel,"velocity")
87
88 sq=Sequencer()
89 sq.t_end=0.001
90
91 vis=WriteVTK()
92 vis.t=Link(sq)
93 vis.scalar=Link(temp,"temperature")
94 vis.vector=Link(vel,"velocity")
95 vis.dt=0.0001
96 vis.filename=WORKDIR+"/temp.xml"
97
98 per=GaussianProfile()
99 per.domain=Link(dom)
100 per.x_c=[0.5,0.5,0.5]
101 per.A=0.0001
102 per.width=0.01
103 per.r=0
104
105 lc=LinearCombination()
106 lc.f0=1.
107 lc.v0=Link(per,"out")
108 lc.f1=1.
109 lc.v1=Link(temp_val,"out")
110 temp.temperature=Link(lc,"out")
111
112 s=Simulation([sq,temp_constraints,Simulation([vel],debug=True),temp,vis],debug=True)
113 s.writeXML()
114 s.run()

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