/[escript]/trunk/doc/examples/cookbook/example05a.py
ViewVC logotype

Annotation of /trunk/doc/examples/cookbook/example05a.py

Parent Directory Parent Directory | Revision Log Revision Log


Revision 3981 - (hide annotations)
Fri Sep 21 02:47:54 2012 UTC (6 years ago) by jfenwick
File MIME type: text/x-python
File size: 4984 byte(s)
First pass of updating copyright notices
1 gross 2948
2 jfenwick 3981 ##############################################################################
3 gross 2948 #
4 jfenwick 3911 # Copyright (c) 2009-2012 by University of Queensland
5 jfenwick 3981 # http://www.uq.edu.au
6 gross 2948 #
7     # Primary Business: Queensland, Australia
8     # Licensed under the Open Software License version 3.0
9     # http://www.opensource.org/licenses/osl-3.0.php
10     #
11 jfenwick 3981 # Development until 2012 by Earth Systems Science Computational Center (ESSCC)
12     # Development since 2012 by School of Earth Sciences
13     #
14     ##############################################################################
15 gross 2948
16 jfenwick 3911 __copyright__="""Copyright (c) 2009-2012 by University of Queensland
17 jfenwick 3981 http://www.uq.edu.au
18 gross 2948 Primary Business: Queensland, Australia"""
19     __license__="""Licensed under the Open Software License version 3.0
20     http://www.opensource.org/licenses/osl-3.0.php"""
21     __url__="https://launchpad.net/escript-finley"
22    
23     """
24     Author: Antony Hallam antony.hallam@uqconnect.edu.au
25     """
26    
27     ############################################################FILE HEADER
28 gross 2952 # example05a.py
29 gross 2948 # Create either a 2D syncline or anticline model using pycad meshing
30 ahallam 2977 # tools. Then model steady state heat solution.
31 gross 2948
32     #######################################################EXTERNAL MODULES
33     from esys.pycad import * #domain constructor
34     from esys.pycad.gmsh import Design #Finite Element meshing package
35     from esys.finley import MakeDomain #Converter for escript
36     import os #file path tool
37     from math import * # math package
38     from esys.escript import *
39     from esys.escript.unitsSI import *
40     from esys.escript.linearPDEs import LinearPDE
41     import matplotlib
42     matplotlib.use('agg') #It's just here for automated testing
43     from cblib import toRegGrid
44     import pylab as pl #Plotting package
45    
46     ########################################################MPI WORLD CHECK
47     if getMPISizeWorld() > 1:
48     import sys
49 jfenwick 3892 print("This example will not run in an MPI world.")
50 gross 2948 sys.exit(0)
51    
52     #################################################ESTABLISHING VARIABLES
53     #set modal to 1 for a syncline or -1 for an anticline structural
54     #configuration
55     modal=-1
56    
57     # the folder to put our outputs in, leave blank "" for script path -
58     # note this folder path must exist to work
59 gross 2952 save_path= os.path.join("data","example05")
60 gross 2948 mkDir(save_path)
61    
62     ################################################ESTABLISHING PARAMETERS
63     #Model Parameters
64     width=5000.0*m #width of model
65     depth=-6000.0*m #depth of model
66     Ttop=20*K # top temperature
67     qin=70*Milli*W/(m*m) # bottom heat influx
68    
69     sspl=51 #number of discrete points in spline
70     dsp=width/(sspl-1) #dx of spline steps for width
71     dep_sp=2500.0*m #avg depth of spline
72     h_sp=1500.0*m #heigh of spline
73     orit=-1.0 #orientation of spline 1.0=>up -1.0=>down
74    
75     ####################################################DOMAIN CONSTRUCTION
76     # Domain Corners
77     p0=Point(0.0, 0.0, 0.0)
78     p1=Point(0.0, depth, 0.0)
79     p2=Point(width, depth, 0.0)
80     p3=Point(width, 0.0, 0.0)
81    
82     # Generate Material Boundary
83     x=[ Point(i*dsp\
84     ,-dep_sp+modal*orit*h_sp*cos(pi*i*dsp/dep_sp+pi))\
85     for i in range(0,sspl)\
86     ]
87     mysp = Spline(*tuple(x))
88     # Start and end of material boundary.
89     x1=mysp.getStartPoint()
90     x2=mysp.getEndPoint()
91    
92     # Create TOP BLOCK
93     # lines
94     tbl1=Line(p0,x1)
95     tbl2=mysp
96     tbl3=Line(x2,p3)
97     l30=Line(p3, p0)
98     # curve
99     tblockloop = CurveLoop(tbl1,tbl2,tbl3,l30)
100     # surface
101     tblock = PlaneSurface(tblockloop)
102    
103    
104     # Create BOTTOM BLOCK
105     # lines
106     bbl1=Line(x1,p1)
107     bbl3=Line(p2,x2)
108     bbl4=-mysp
109     l12=Line(p1, p2)
110     # curve
111     bblockloop = CurveLoop(bbl1,l12,bbl3,bbl4)
112     # surface
113     bblock = PlaneSurface(bblockloop)
114    
115 ahallam 2977 ################################################CREATE MESH FOR ESCRIPT
116 gross 2948 # Create a Design which can make the mesh
117     d=Design(dim=2, element_size=200)
118     # Add the subdomains and flux boundaries.
119     d.addItems(PropertySet("top",tblock),PropertySet("bottom",bblock),\
120     PropertySet("linebottom",l12))
121     # Create the geometry, mesh and Escript domain
122 gross 2952 d.setScriptFileName(os.path.join(save_path,"example05.geo"))
123     d.setMeshFileName(os.path.join(save_path,"example05.msh"))
124 gross 2948 domain=MakeDomain(d, optimizeLabeling=True)
125 jfenwick 3892 print("Domain has been generated ...")
126 ahallam 2977 ##############################################################SOLVE PDE
127 gross 2948 mypde=LinearPDE(domain)
128     mypde.getSolverOptions().setVerbosityOn()
129     mypde.setSymmetryOn()
130     kappa=Scalar(0,Function(domain))
131     kappa.setTaggedValue("top",2.0*W/m/K)
132     kappa.setTaggedValue("bottom",4.0*W/m/K)
133     mypde.setValue(A=kappa*kronecker(domain))
134     x=Solution(domain).getX()
135     mypde.setValue(q=whereZero(x[1]-sup(x[1])),r=Ttop)
136     qS=Scalar(0,FunctionOnBoundary(domain))
137     qS.setTaggedValue("linebottom",qin)
138     mypde.setValue(y=qS)
139 jfenwick 3892 print("PDE has been generated ...")
140 gross 2948 ###########################################################GET SOLUTION
141     T=mypde.getSolution()
142 jfenwick 3892 print("PDE has been solved ...")
143 gross 2948
144 ahallam 2977 #######################################################################
145 gross 2948 xi, yi, zi = toRegGrid(T, nx=50, ny=50)
146     pl.matplotlib.pyplot.autumn()
147     pl.contourf(xi,yi,zi,10)
148     pl.xlabel("Horizontal Displacement (m)")
149     pl.ylabel("Depth (m)")
150 gross 2952 pl.savefig(os.path.join(save_path,"Tcontour.png"))
151 jfenwick 3892 print("Solution has been plotted ...")

  ViewVC Help
Powered by ViewVC 1.1.26