db7fac3f24
git-svn-id: https://openfoam-extend.svn.sourceforge.net/svnroot/openfoam-extend/trunk/Core/OpenFOAM-1.5-dev@1731 e4e07f05-0c2f-0410-a05a-b8ba57e0c909
364 lines
9.4 KiB
C
364 lines
9.4 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright held by original author
|
|
\\/ 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 2 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, write to the Free Software Foundation,
|
|
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
Description
|
|
Tries to figure out what the refinement level is on refined cartesian
|
|
meshes. Run BEFORE snapping.
|
|
|
|
Writes
|
|
- volScalarField 'refinementLevel' with current refinement level.
|
|
- cellSet 'refCells' which are the cells that need to be refined to satisfy
|
|
2:1 refinement.
|
|
|
|
Works by dividing cells into volume bins.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "argList.H"
|
|
#include "Time.H"
|
|
#include "polyMesh.H"
|
|
#include "cellSet.H"
|
|
#include "SortableList.H"
|
|
#include "labelIOList.H"
|
|
#include "fvMesh.H"
|
|
#include "volFields.H"
|
|
|
|
using namespace Foam;
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
// Return true if any cells had to be split to keep a difference between
|
|
// neighbouring refinement levels < limitDiff. Puts cells into refCells and
|
|
// update refLevel to account for refinement.
|
|
bool limitRefinementLevel
|
|
(
|
|
const primitiveMesh& mesh,
|
|
labelList& refLevel,
|
|
cellSet& refCells
|
|
)
|
|
{
|
|
const labelListList& cellCells = mesh.cellCells();
|
|
|
|
label oldNCells = refCells.size();
|
|
|
|
forAll(cellCells, cellI)
|
|
{
|
|
const labelList& cCells = cellCells[cellI];
|
|
|
|
forAll(cCells, i)
|
|
{
|
|
if (refLevel[cCells[i]] > (refLevel[cellI]+1))
|
|
{
|
|
// Found neighbour with >=2 difference in refLevel.
|
|
refCells.insert(cellI);
|
|
refLevel[cellI]++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (refCells.size() > oldNCells)
|
|
{
|
|
Info<< "Added an additional " << refCells.size() - oldNCells
|
|
<< " cells to satisfy 1:2 refinement level"
|
|
<< endl;
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
// Main program:
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
argList::validOptions.insert("readLevel", "");
|
|
|
|
# include "setRootCase.H"
|
|
# include "createTime.H"
|
|
# include "createPolyMesh.H"
|
|
|
|
Info<< "Dividing cells into bins depending on cell volume.\nThis will"
|
|
<< " correspond to refinement levels for a mesh with only 2x2x2"
|
|
<< " refinement\n"
|
|
<< "The upper range for every bin is always 1.1 times the lower range"
|
|
<< " to allow for some truncation error."
|
|
<< nl << endl;
|
|
|
|
bool readLevel = args.options().found("readLevel");
|
|
|
|
const scalarField& vols = mesh.cellVolumes();
|
|
|
|
SortableList<scalar> sortedVols(vols);
|
|
|
|
// All cell labels, sorted per bin.
|
|
DynamicList<DynamicList<label> > bins;
|
|
|
|
// Lower/upper limits
|
|
DynamicList<scalar> lowerLimits;
|
|
DynamicList<scalar> upperLimits;
|
|
|
|
// Create bin0. Have upperlimit as factor times lowerlimit.
|
|
bins.append(DynamicList<label>());
|
|
lowerLimits.append(sortedVols[0]);
|
|
upperLimits.append(1.1*lowerLimits[lowerLimits.size()-1]);
|
|
|
|
forAll(sortedVols, i)
|
|
{
|
|
if (sortedVols[i] > upperLimits[upperLimits.size()-1])
|
|
{
|
|
// New value outside of current bin
|
|
|
|
// Shrink old bin.
|
|
DynamicList<label>& bin = bins[bins.size()-1];
|
|
|
|
bin.shrink();
|
|
|
|
Info<< "Collected " << bin.size() << " elements in bin "
|
|
<< lowerLimits[lowerLimits.size()-1] << " .. "
|
|
<< upperLimits[upperLimits.size()-1] << endl;
|
|
|
|
// Create new bin.
|
|
bins.append(DynamicList<label>());
|
|
lowerLimits.append(sortedVols[i]);
|
|
upperLimits.append(1.1*lowerLimits[lowerLimits.size()-1]);
|
|
|
|
Info<< "Creating new bin " << lowerLimits[lowerLimits.size()-1]
|
|
<< " .. " << upperLimits[upperLimits.size()-1]
|
|
<< endl;
|
|
}
|
|
|
|
// Append to current bin.
|
|
DynamicList<label>& bin = bins[bins.size()-1];
|
|
|
|
bin.append(sortedVols.indices()[i]);
|
|
}
|
|
Info<< endl;
|
|
|
|
bins[bins.size()-1].shrink();
|
|
bins.shrink();
|
|
lowerLimits.shrink();
|
|
upperLimits.shrink();
|
|
|
|
|
|
//
|
|
// Write to cellSets.
|
|
//
|
|
|
|
Info<< "Volume bins:" << nl;
|
|
forAll(bins, binI)
|
|
{
|
|
const DynamicList<label>& bin = bins[binI];
|
|
|
|
cellSet cells(mesh, "vol" + name(binI), bin.size());
|
|
|
|
forAll(bin, i)
|
|
{
|
|
cells.insert(bin[i]);
|
|
}
|
|
|
|
Info<< " " << lowerLimits[binI] << " .. " << upperLimits[binI]
|
|
<< " : writing " << bin.size() << " cells to cellSet "
|
|
<< cells.name() << endl;
|
|
|
|
cells.write();
|
|
}
|
|
|
|
|
|
|
|
//
|
|
// Convert bins into refinement level.
|
|
//
|
|
|
|
|
|
// Construct fvMesh to be able to construct volScalarField
|
|
|
|
fvMesh fMesh
|
|
(
|
|
IOobject
|
|
(
|
|
fvMesh::defaultRegion,
|
|
runTime.timeName(),
|
|
runTime
|
|
),
|
|
mesh.points(),
|
|
mesh.faces(),
|
|
mesh.cells()
|
|
);
|
|
|
|
// Add the boundary patches
|
|
const polyBoundaryMesh& patches = mesh.boundaryMesh();
|
|
|
|
List<polyPatch*> p(patches.size());
|
|
|
|
forAll (p, patchI)
|
|
{
|
|
p[patchI] = patches[patchI].clone(fMesh.boundaryMesh()).ptr();
|
|
}
|
|
|
|
fMesh.addFvPatches(p);
|
|
|
|
|
|
// Refinement level
|
|
IOobject refHeader
|
|
(
|
|
"refinementLevel",
|
|
runTime.timeName(),
|
|
polyMesh::defaultRegion,
|
|
runTime
|
|
);
|
|
|
|
if (!readLevel && refHeader.headerOk())
|
|
{
|
|
WarningIn(args.executable())
|
|
<< "Detected " << refHeader.name() << " file in "
|
|
<< polyMesh::defaultRegion << " directory. Please remove to"
|
|
<< " recreate it or use the -readLevel option to use it"
|
|
<< endl;
|
|
return 1;
|
|
}
|
|
|
|
|
|
labelIOList refLevel
|
|
(
|
|
IOobject
|
|
(
|
|
"refinementLevel",
|
|
runTime.timeName(),
|
|
mesh,
|
|
IOobject::NO_READ,
|
|
IOobject::AUTO_WRITE
|
|
),
|
|
labelList(mesh.nCells(), 0)
|
|
);
|
|
|
|
if (readLevel)
|
|
{
|
|
refLevel = labelIOList(refHeader);
|
|
}
|
|
|
|
// Construct volScalarField with same info for post processing
|
|
volScalarField postRefLevel
|
|
(
|
|
IOobject
|
|
(
|
|
"refinementLevel",
|
|
runTime.timeName(),
|
|
mesh,
|
|
IOobject::NO_READ,
|
|
IOobject::NO_WRITE
|
|
),
|
|
fMesh,
|
|
dimensionedScalar("zero", dimless/dimTime, 0)
|
|
);
|
|
|
|
// Set cell values
|
|
forAll(bins, binI)
|
|
{
|
|
const DynamicList<label>& bin = bins[binI];
|
|
|
|
forAll(bin, i)
|
|
{
|
|
refLevel[bin[i]] = bins.size() - binI - 1;
|
|
postRefLevel[bin[i]] = refLevel[bin[i]];
|
|
}
|
|
}
|
|
|
|
|
|
// For volScalarField: set boundary values to same as cell.
|
|
// Note: could also put
|
|
// zeroGradient b.c. on postRefLevel and do evaluate.
|
|
forAll(postRefLevel.boundaryField(), patchI)
|
|
{
|
|
const polyPatch& pp = patches[patchI];
|
|
|
|
fvPatchScalarField& bField = postRefLevel.boundaryField()[patchI];
|
|
|
|
Info<< "Setting field for patch "<< endl;
|
|
|
|
forAll(bField, faceI)
|
|
{
|
|
label own = mesh.faceOwner()[pp.start() + faceI];
|
|
|
|
bField[faceI] = postRefLevel[own];
|
|
}
|
|
}
|
|
|
|
Info<< "Determined current refinement level and writing to "
|
|
<< postRefLevel.name() << " (as volScalarField; for post processing)"
|
|
<< nl
|
|
<< polyMesh::defaultRegion/refLevel.name()
|
|
<< " (as labelIOList; for meshing)" << nl
|
|
<< endl;
|
|
|
|
refLevel.write();
|
|
postRefLevel.write();
|
|
|
|
|
|
// Find out cells to refine to keep to 2:1 refinement level restriction
|
|
|
|
// Cells to refine
|
|
cellSet refCells(mesh, "refCells", 100);
|
|
|
|
while
|
|
(
|
|
limitRefinementLevel
|
|
(
|
|
mesh,
|
|
refLevel, // current refinement level
|
|
refCells // cells to refine
|
|
)
|
|
)
|
|
{}
|
|
|
|
if (refCells.size() > 0)
|
|
{
|
|
Info<< "Collected " << refCells.size() << " cells that need to be"
|
|
<< " refined to get closer to overall 2:1 refinement level limit"
|
|
<< nl
|
|
<< "Written cells to be refined to cellSet " << refCells.name()
|
|
<< nl << endl;
|
|
|
|
refCells.write();
|
|
|
|
Info<< "After refinement this tool can be run again to see if the 2:1"
|
|
<< " limit is observed all over the mesh" << nl << endl;
|
|
}
|
|
else
|
|
{
|
|
Info<< "All cells in the mesh observe the 2:1 refinement level limit"
|
|
<< nl << endl;
|
|
}
|
|
|
|
Info << nl << "End" << endl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|