Newer
Older
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2013-2016 OpenFOAM Foundation
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Application
Test-fieldMapping
Description
Test app for mapping of fields.
\*---------------------------------------------------------------------------*/
#include "argList.H"
#include "fvMesh.H"
#include "volFields.H"
#include "Time.H"
#include "OFstream.H"
#include "meshTools.H"
#include "removeFaces.H"
#include "mapPolyMesh.H"
#include "polyTopoChange.H"
#include "fvcDiv.H"
#include "zeroGradientFvPatchFields.H"
#include "Random.H"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
bool notEqual(const scalar s1, const scalar s2, const scalar tol)
{
return mag(s1-s2) > tol;
}
// Main program:
int main(int argc, char *argv[])
{
argList::addArgument("inflate (true|false)");
#include "setRootCase.H"
#include "createTime.H"
#include "createMesh.H"
const Switch inflate(args[1]);
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
if (inflate)
{
Info<< "Deleting cells using inflation/deflation" << nl << endl;
}
else
{
Info<< "Deleting cells, introducing points at new position" << nl
<< endl;
}
Random rndGen(0);
// Test mapping
// ------------
// Mapping is volume averaged
// 1. uniform field stays uniform
volScalarField one
(
IOobject
(
"one",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
mesh,
dimensionedScalar("one", dimless, 1.0),
zeroGradientFvPatchScalarField::typeName
);
Info<< "Writing one field "
<< one.name() << " in " << runTime.timeName() << endl;
one.write();
// 2. linear profile gets preserved
volScalarField ccX
(
IOobject
(
"ccX",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
mesh.C().component(0)
);
Info<< "Writing x component of cell centres to "
<< ccX.name()
<< " in " << runTime.timeName() << endl;
ccX.write();
// Uniform surface field
surfaceScalarField surfaceOne
(
IOobject
(
"surfaceOne",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
mesh,
dimensionedScalar("one", dimless, 1.0),
calculatedFvsPatchScalarField::typeName
);
Info<< "Writing surface one field "
<< surfaceOne.name() << " in " << runTime.timeName() << endl;
surfaceOne.write();
// Force allocation of V. Important for any mesh changes since otherwise
const scalar totalVol = gSum(mesh.V());
// Face removal engine. No checking for not merging boundary faces.
removeFaces faceRemover(mesh, GREAT);
while (runTime.loop())
{
Info<< "Time = " << runTime.timeName() << nl << endl;
if (!mesh.nInternalFaces())
{
break;
}
// Remove face
label candidateFacei =
rndGen.position<label>(0, mesh.nInternalFaces()-1);
Info<< "Wanting to delete face " << mesh.faceCentres()[candidateFacei]
labelList candidates(1, candidateFacei);
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
// Get compatible set of faces and connected sets of cells.
labelList cellRegion;
labelList cellRegionMaster;
labelList facesToRemove;
faceRemover.compatibleRemoves
(
candidates,
cellRegion,
cellRegionMaster,
facesToRemove
);
// Topo changes container
polyTopoChange meshMod(mesh);
// Insert mesh refinement into polyTopoChange.
faceRemover.setRefinement
(
facesToRemove,
cellRegion,
cellRegionMaster,
meshMod
);
// Change mesh and inflate
Info<< "Actually changing mesh" << nl << endl;
autoPtr<mapPolyMesh> morphMap = meshMod.changeMesh(mesh, inflate);
Info<< "Mapping fields" << nl << endl;
mesh.updateMesh(morphMap);
// Move mesh (since morphing does not do this)
if (morphMap().hasMotionPoints())
{
Info<< "Moving mesh" << nl << endl;
mesh.movePoints(morphMap().preMotionPoints());
}
// Update numbering of cells/vertices.
faceRemover.updateMesh(morphMap);
Info<< "Writing fields" << nl << endl;
runTime.write();
// Check mesh volume conservation
if (mesh.moving())
{
#include "volContinuity.H"
}
else
{
if (mesh.V().size() != mesh.nCells())
{
FatalErrorInFunction
<< "Volume not mapped. V:" << mesh.V().size()
<< " nCells:" << mesh.nCells()
<< exit(FatalError);
}
const scalar newVol = gSum(mesh.V());
Info<< "Initial volume = " << totalVol
<< " New volume = " << newVol
<< endl;
if (mag(newVol-totalVol)/totalVol > 1e-10)
{
FatalErrorInFunction
<< "Volume loss: old volume:" << totalVol
<< " new volume:" << newVol
<< exit(FatalError);
}
else
{
Info<< "Volume check OK" << nl << endl;
}
}
// Check constant profile
{
const scalar max = gMax(one);
const scalar min = gMin(one);
Info<< "Uniform one field min = " << min
<< " max = " << max << endl;
if (notEqual(max, 1.0, 1e-10) || notEqual(min, 1.0, 1e-10))
{
FatalErrorInFunction
<< "Uniform volVectorField not preserved."
<< " Min and max should both be 1.0. min:" << min
<< " max:" << max
<< exit(FatalError);
}
else
{
Info<< "Uniform field mapping check OK" << nl << endl;
}
}
// Check linear profile
{
const scalarField diff = ccX-mesh.C().component(0);
const scalar max = gMax(diff);
const scalar min = gMin(diff);
Info<< "Linear profile field min = " << min
<< " max = " << max << endl;
if (notEqual(max, 0.0, 1e-10) || notEqual(min, 0.0, 1e-10))
{
FatalErrorInFunction
<< " Min and max should both be 0.0. min:" << min
<< " max:" << max
<< exit(FatalError);
}
else
{
Info<< "Linear profile mapping check OK" << nl << endl;
}
}
// Check face field mapping
if (surfaceOne.size())
{
const scalar max = gMax(surfaceOne.primitiveField());
const scalar min = gMin(surfaceOne.primitiveField());
Info<< "Uniform surface field min = " << min
<< " max = " << max << endl;
if (notEqual(max, 1.0, 1e-10) || notEqual(min, 1.0, 1e-10))
{
FatalErrorInFunction
<< "Uniform surfaceScalarField not preserved."
<< " Min and max should both be 1.0. min:" << min
<< " max:" << max
<< exit(FatalError);
}
else
{
Info<< "Uniform surfaceScalarField mapping check OK" << nl
<< endl;
}
}
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //