/[escript]/trunk/modellib/test/python/convection.py
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Annotation of /trunk/modellib/test/python/convection.py

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Revision 628 - (hide annotations)
Thu Mar 23 02:27:57 2006 UTC (14 years, 6 months ago) by elspeth
File MIME type: text/x-python
File size: 3057 byte(s)
Copyright information added.

1 jgs 147 # $Id$
2    
3     #
4     #
5     # a very simple convection model in model frame:
6     #
7    
8 elspeth 628 __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 jgs 149 from esys.escript.modelframe import Link,Simulation
15     from esys.modellib.geometry import RectangularDomain,ScalarConstrainer,VectorConstrainer
16     from esys.modellib.input import Sequencer,InterpolateOverBox,GaussianProfile,LinearCombination
17     from esys.modellib.flow import SteadyIncompressibleFlow
18     from esys.modellib.temperature import TemperatureAdvection
19     from esys.modellib.materials import SimpleEarthModel,GravityForce
20     from esys.modellib.visualization import WriteVTK
21 jgs 147
22     dom=RectangularDomain()
23     dom.order=2
24    
25     temp_constraints=ScalarConstrainer()
26     temp_constraints.domain=Link(dom)
27     temp_constraints.top=1
28     temp_constraints.bottom=1
29    
30     vel_constraints=VectorConstrainer()
31     vel_constraints.domain=Link(dom)
32     vel_constraints.left=[1,0,0]
33     vel_constraints.right=[1,0,0]
34     vel_constraints.top=[0,1,0]
35     vel_constraints.bottom=[0,1,0]
36     vel_constraints.front=[0,0,1]
37     vel_constraints.back=[0,0,1]
38    
39    
40     temp_val=InterpolateOverBox()
41     temp_val.domain=Link(dom,"domain")
42     temp_val.right_top_back=Link(dom,"l")
43     temp_val.value_left_bottom_front=1.
44     temp_val.value_right_bottom_front=1.
45     temp_val.value_left_top_front=0.
46     temp_val.value_right_top_front=0.
47     temp_val.value_left_bottom_back=1.
48     temp_val.value_right_bottom_back=1.
49     temp_val.value_left_top_back=0.
50     temp_val.value_right_top_back=0.
51    
52     mat=SimpleEarthModel()
53     mat.density0=1.
54     mat.viscocity0=1.
55     mat.rayleigh_number=10000.
56     mat.alpha=0.001
57    
58     temp=TemperatureAdvection(debug=True)
59     temp.domain=Link(dom)
60     temp.density=Link(mat,"density0")
61     temp.heat_capacity=Link(mat,"heat_capacity")
62     temp.location_fixed_temperature=Link(temp_constraints,"location_of_constraint")
63     temp.fixed_temperature=Link(temp_val,"out")
64     temp.safety_factor=0.01
65     mat.temperature=Link(temp,"temperature")
66    
67    
68     grav=GravityForce()
69     grav.domain=Link(dom,"domain")
70     grav.direction=[0.,-1.,0.]
71     grav.density=Link(mat,"density")
72     grav.gravity=Link(mat,"gravity")
73    
74    
75     vel=SteadyIncompressibleFlow(debug=True)
76     vel.domain=Link(dom)
77     vel.internal_force=Link(grav,"gravity_force")
78     vel.viscosity=Link(mat,"viscosity")
79     vel.location_prescribed_velocity=Link(vel_constraints,"location_of_constraint")
80     vel.rel_tol=1.e-6
81     temp.velocity=Link(vel,"velocity")
82    
83     sq=Sequencer()
84     sq.t_end=0.005
85    
86     vis=WriteVTK()
87     vis.t=Link(sq)
88     vis.scalar=Link(temp,"temperature")
89     vis.vector=Link(vel,"velocity")
90     vis.stride=5
91    
92 jgs 148 per=GaussianProfile()
93 jgs 147 per.domain=Link(dom)
94     per.x_c=[0.5,0.5,0.5]
95     per.A=0.0001
96     per.width=0.01
97     per.r=0
98    
99     lc=LinearCombination()
100     lc.f0=1.
101     lc.v0=Link(per,"out")
102     lc.f1=1.
103     lc.v1=Link(temp_val,"out")
104     temp.temperature=Link(lc,"out")
105    
106 jgs 148 # s=Simulation([dom,sq,temp_constraints,vel_constraints,temp_val,per,lc,mat,grav,Simulation([vel],debug=True),temp,vis],debug=True)
107     s=Simulation([dom,sq,Simulation([vel],debug=True),temp,vis],debug=True)
108 jgs 147 s.writeXML()
109     s.run()

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