1cb715186d
The templates include a stategy to simplify meshing with snappyHexMesh, particularly to help generate an initial mesh quickly that can subsequently be improved. The templates are setup to enable rapid initial simulations, typically with simpleFoam. The initial templates cover simple inflow-outflow and closed domains, including rotating geometry, and an example axisymmetric flow. For more details, consult the README file accompanying each template case. The cases are located in $FOAM_ETC/templates
127 lines
2.6 KiB
C++
127 lines
2.6 KiB
C++
/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class dictionary;
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object snappyHexMeshDict;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#includeEtc "caseDicts/mesh/generation/snappyHexMeshDict.cfg"
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castellatedMesh on;
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snap on;
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addLayers off;
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geometry
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{
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fixed.obj
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{
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type triSurfaceMesh;
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name fixed;
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}
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rotating.obj
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{
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type triSurfaceMesh;
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name rotating;
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}
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rotatingZone.obj
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{
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type triSurfaceMesh;
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name rotatingZone;
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}
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};
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castellatedMeshControls
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{
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features
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(
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{ file "fixed.eMesh"; level 1; }
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{ file "rotating.eMesh"; level 1; }
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{ file "rotatingZone.eMesh"; level 1; }
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);
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refinementSurfaces
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{
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fixed
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{
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level (2 2);
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patchInfo { type wall; }
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}
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rotating
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{
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level (2 2);
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patchInfo { type wall; }
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}
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rotatingZone
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{
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level (2 2);
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faceZone rotatingZone;
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cellZone rotatingZone;
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cellZoneInside inside;
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}
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}
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refinementRegions
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{
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/*
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rotatingZone
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{
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mode inside;
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levels ((1E15 2));
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}
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*/
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}
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locationInMesh (1e-5 1e-5 1e-5); // Offset from (0 0 0) to avoid
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// coinciding with face or edge
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}
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snapControls
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{
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explicitFeatureSnap true;
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}
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addLayersControls
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{
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layers
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{
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"(rotating|fixed)"
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{
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nSurfaceLayers 2;
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}
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}
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relativeSizes true; // false, usually with firstLayerThickness
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expansionRatio 1.2;
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finalLayerThickness 0.5;
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minThickness 1e-3;
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// firstLayerThickness 0.01;
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// maxThicknessToMedialRatio 0.6;
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}
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meshQualityControls
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{
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// minTetQuality -1e+30;
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}
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writeFlags
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(
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scalarLevels
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layerSets
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layerFields
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);
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mergeTolerance 1e-6;
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// ************************************************************************* //
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