113 lines
3.9 KiB
C++
113 lines
3.9 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 | 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 createPatchDict;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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// This application/dictionary controls:
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// - optional: create new patches from boundary faces (either given as
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// a set of patches or as a faceSet)
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// - always: order faces on coupled patches such that they are opposite. This
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// is done for all coupled faces, not just for any patches created.
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// - optional: synchronise points on coupled patches.
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// - always: remove zero-sized (non-coupled) patches (that were not added)
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// 1. Create cyclic:
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// - specify where the faces should come from
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// - specify the type of cyclic. If a rotational specify the rotationAxis
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// and centre to make matching easier
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// - always create both halves in one invocation with correct 'neighbourPatch'
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// setting.
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// - optionally pointSync true to guarantee points to line up.
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// 2. Correct incorrect cyclic:
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// This will usually fail upon loading:
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// "face 0 area does not match neighbour 2 by 0.0100005%"
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// " -- possible face ordering problem."
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// - in polyMesh/boundary file:
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// - loosen matchTolerance of all cyclics to get case to load
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// - or change patch type from 'cyclic' to 'patch'
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// and regenerate cyclic as above
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// Do a synchronisation of coupled points after creation of any patches.
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// Note: this does not work with points that are on multiple coupled patches
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// with transformations (i.e. cyclics).
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pointSync false;
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// Patches to create.
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patches
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(
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{
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// Name of new patch
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name cyc_half0;
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// Dictionary to construct new patch from
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patchInfo
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{
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type cyclic;
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neighbourPatch cyc_half1;
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// Optional: explicitly set transformation tensor.
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// Used when matching and synchronising points.
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transform rotational;
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rotationAxis (1 0 0);
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rotationCentre (0 0 0);
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// transform translational;
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// separationVector (1 0 0);
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// Optional non-default tolerance to be able to define cyclics
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// on bad meshes
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//matchTolerance 1E-2;
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}
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// How to construct: either from 'patches' or 'set'
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constructFrom patches;
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// If constructFrom = patches : names of patches. Wildcards allowed.
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patches (periodic1);
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// If constructFrom = set : name of faceSet
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set f0;
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}
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{
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// Name of new patch
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name cyc_half1;
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// Dictionary to construct new patch from
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patchInfo
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{
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type cyclic;
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neighbourPatch cyc_half0;
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// Optional: explicitly set transformation tensor.
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// Used when matching and synchronising points.
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transform rotational;
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rotationAxis (1 0 0);
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rotationCentre (0 0 0);
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// transform translational;
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// separationVector (1 0 0);
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}
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// How to construct: either from 'patches' or 'set'
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constructFrom patches;
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// If constructFrom = patches : names of patches. Wildcards allowed.
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patches (periodic2);
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// If constructFrom = set : name of faceSet
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set f0;
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}
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);
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// ************************************************************************* //
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