01494463d0
The FOAM file format has not changed from version 2.0 in many years and so there is no longer a need for the 'version' entry in the FoamFile header to be required and to reduce unnecessary clutter it is now optional, defaulting to the current file format 2.0.
84 lines
2.9 KiB
C++
84 lines
2.9 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 | Website: https://openfoam.org
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\\ / A nd | Version: dev
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\\/ M anipulation |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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format ascii;
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class dictionary;
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object collapseDict;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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controlMeshQuality on;
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collapseEdgesCoeffs
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{
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// Edges shorter than this absolute value will be merged
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minimumEdgeLength 1e-6;
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// The maximum angle between two edges that share a point attached to
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// no other edges
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maximumMergeAngle 180;
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}
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collapseFacesCoeffs
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{
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// The initial face length factor
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initialFaceLengthFactor 0.5;
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// If the face can't be collapsed to an edge, and it has a span less than
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// the target face length multiplied by this coefficient, collapse it
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// to a point.
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maxCollapseFaceToPointSideLengthCoeff 0.3;
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// Allow early collapse of edges to a point
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allowEarlyCollapseToPoint on;
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// Fraction to premultiply maxCollapseFaceToPointSideLengthCoeff by if
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// allowEarlyCollapseToPoint is enabled
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allowEarlyCollapseCoeff 0.2;
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// Defining how close to the midpoint (M) of the projected
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// vertices line a projected vertex (X) can be before making this
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// an invalid edge collapse
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//
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// X---X-g----------------M----X-----------g----X--X
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//
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// Only allow a collapse if all projected vertices are outwith
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// guardFraction (g) of the distance form the face centre to the
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// furthest vertex in the considered direction
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guardFraction 0.1;
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}
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controlMeshQualityCoeffs
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{
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// Name of the dictionary that has the mesh quality coefficients used
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// by motionSmoother::checkMesh
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#include "meshQualityDict"
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// The amount that minimumEdgeLength will be reduced by for each
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// edge if that edge's collapse generates a poor quality face
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edgeReductionFactor 0.5;
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// The amount that initialFaceLengthFactor will be reduced by for each
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// face if its collapse generates a poor quality face
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faceReductionFactor 0.5;
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// Maximum number of smoothing iterations for the reductionFactors
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maximumSmoothingIterations 2;
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// Maximum number of outer iterations is mesh quality checking is enabled
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maximumIterations 10;
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// Maximum number of iterations deletion of a point can cause a bad face
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// to be constructed before it is forced to not be deleted
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maxPointErrorCount 3;
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}
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// ************************************************************************* //
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