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ENH: snappyHexMesh: detect small distance snapping

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This commit is contained in:
mattijs
2013-09-13 16:18:04 +01:00
parent 1348eabe3b
commit 1a0a6b51dd
8 changed files with 987 additions and 64 deletions
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56
src/mesh/autoMesh/autoHexMesh/meshRefinement/meshRefinementRefine.C
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@ -1214,7 +1214,6 @@ Foam::label Foam::meshRefinement::markSurfaceCurvatureRefinement
}
// Mark small gaps
bool Foam::meshRefinement::isGap
(
const scalar planarCos,
@ -1225,12 +1224,53 @@ bool Foam::meshRefinement::isGap
const vector& normal1
) const
{
////- hits differ and angles are oppositeish
//return
// (mag(point0-point1) > mergeDistance())
// && ((normal0 & normal1) < (-1+planarCos));
//- hits differ and angles are oppositeish and
// hits have a normal distance
vector d = point1-point0;
scalar magD = mag(d);
if (magD > mergeDistance())
{
scalar cosAngle = (normal0 & normal1);
vector avg = vector::zero;
if (cosAngle < (-1+planarCos))
{
// Opposite normals
avg = 0.5*(normal0-normal1);
}
else if (cosAngle > (1-planarCos))
{
avg = 0.5*(normal0+normal1);
}
if (avg != vector::zero)
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
// Mark small gaps
bool Foam::meshRefinement::isNormalGap
(
const scalar planarCos,
const vector& point0,
const vector& normal0,
const vector& point1,
const vector& normal1
) const
{
//- hits differ and angles are oppositeish and
// hits have a normal distance
vector d = point1-point0;
@ -1316,7 +1356,7 @@ bool Foam::meshRefinement::checkProximity
// - different location
// - opposite surface
bool closeSurfaces = isGap
bool closeSurfaces = isNormalGap
(
planarCos,
cellMaxLocation,
@ -1565,7 +1605,7 @@ Foam::label Foam::meshRefinement::markProximityRefinement
// Have valid data on both sides. Check planarCos.
if
(
isGap
isNormalGap
(
planarCos,
cellMaxLocation[own],
@ -1635,7 +1675,7 @@ Foam::label Foam::meshRefinement::markProximityRefinement
// Have valid data on both sides. Check planarCos.
if
(
isGap
isNormalGap
(
planarCos,
cellMaxLocation[own],