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BUG: snappyHexMesh: minThickness > 1 caused truncation of layers

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The start of the layer addition loop does a synchronisation of the wanted
displacement. This also does a truncation of the displacement if it is <
minThickness. At the first iteration the displacement was initialised to
vector::one which might trigger the truncation logic (and then disable
extrusion altogether). Instead we now initialise the displacement to
vector::GREAT before entering the synchronisation.
This commit is contained in:
mattijs
2015-10-26 14:37:17 +00:00
parent 4d1159e685
commit 2de68a9ae7
2 changed files with 12 additions and 1839 deletions
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16
src/mesh/autoMesh/autoHexMesh/autoHexMeshDriver/autoLayerDriver.C
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@ -3068,8 +3068,10 @@ void Foam::autoLayerDriver::addLayers
) )
); );
// Displacement for all pp.localPoints. // Displacement for all pp.localPoints. Set to large value to
vectorField patchDisp(pp().nPoints(), vector::one); // avoid truncation in syncPatchDisplacement because of
// minThickness.
vectorField patchDisp(pp().nPoints(), vector(GREAT, GREAT, GREAT));
labelList patchNLayers(pp().nPoints(), 0); labelList patchNLayers(pp().nPoints(), 0);
label nIdealTotAddedCells = 0; label nIdealTotAddedCells = 0;
List<extrudeMode> extrudeStatus(pp().nPoints(), EXTRUDE); List<extrudeMode> extrudeStatus(pp().nPoints(), EXTRUDE);
@ -3086,6 +3088,8 @@ void Foam::autoLayerDriver::addLayers
nIdealTotAddedCells nIdealTotAddedCells
); );
// Make sure displacement is equal on both sides of coupled patches. // Make sure displacement is equal on both sides of coupled patches.
// Note that we explicitly disable the minThickness truncation
// of the patchDisp here.
syncPatchDisplacement syncPatchDisplacement
( (
pp, pp,
@ -3297,8 +3301,9 @@ void Foam::autoLayerDriver::addLayers
// Point-wise extrusion data // Point-wise extrusion data
// ~~~~~~~~~~~~~~~~~~~~~~~~~ // ~~~~~~~~~~~~~~~~~~~~~~~~~
// Displacement for all pp.localPoints. // Displacement for all pp.localPoints. Set to large value so does
vectorField patchDisp(pp().nPoints(), vector::one); // not trigger the minThickness truncation (see syncPatchDisplacement below)
vectorField patchDisp(pp().nPoints(), vector(GREAT, GREAT, GREAT));
// Number of layers for all pp.localPoints. Note: only valid if // Number of layers for all pp.localPoints. Note: only valid if
// extrudeStatus = EXTRUDE. // extrudeStatus = EXTRUDE.
@ -3533,6 +3538,9 @@ void Foam::autoLayerDriver::addLayers
// Make sure displacement is equal on both sides of coupled patches. // Make sure displacement is equal on both sides of coupled patches.
// Note that this also does the patchDisp < minThickness truncation
// so for the first pass make sure the patchDisp is larger than
// that.
syncPatchDisplacement syncPatchDisplacement
( (
pp, pp,

1835
src/mesh/autoMesh/autoHexMesh/autoHexMeshDriver/autoLayerDriverShrink.C
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