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ENH: overset: various improvements to trackingInverseDistance. See #736.

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This commit is contained in:
mattijs
2019-01-23 09:50:37 +00:00
parent 8f8a4dc682
commit e6217dafd6
5 changed files with 163 additions and 98 deletions
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201
src/overset/cellCellStencil/trackingInverseDistance/trackingInverseDistanceCellCellStencil.C
View File

@ -48,13 +48,13 @@ namespace cellCellStencils
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::cellCellStencils::trackingInverseDistance::markBoundaries
bool Foam::cellCellStencils::trackingInverseDistance::markBoundaries
(
const fvMesh& mesh,
const vector& smallVec,
const boundBox& bb,
const labelVector& nDivs,
labelVector& nDivs,
PackedList<2>& patchTypes,
const labelList& cellMap,
@ -63,6 +63,8 @@ void Foam::cellCellStencils::trackingInverseDistance::markBoundaries
{
// Mark all voxels that overlap the bounding box of any patch
static bool hasWarned = false;
const fvBoundaryMesh& pbm = mesh.boundary();
patchTypes = patchCellType::OTHER;
@ -113,6 +115,7 @@ void Foam::cellCellStencils::trackingInverseDistance::markBoundaries
{
//Info<< "Marking cells on overset patch " << fvp.name() << endl;
const polyPatch& pp = fvp.patch();
const vectorField::subField faceCentres(pp.faceCentres());
forAll(pp, i)
{
// Mark in overall patch types
@ -122,8 +125,54 @@ void Foam::cellCellStencils::trackingInverseDistance::markBoundaries
boundBox faceBb(pp.points(), pp[i], false);
faceBb.min() -= smallVec;
faceBb.max() += smallVec;
if (bb.overlaps(faceBb))
if (!bb.contains(faceCentres[i]))
{
if (!hasWarned)
{
hasWarned = true;
WarningInFunction << "Patch " << pp.name()
<< " : face at " << faceCentres[i]
<< " is not inside search bounding box of"
<< " voxel mesh " << bb << endl
<< " Is your 'searchBox' specification correct?"
<< endl;
}
}
else
{
// Test for having voxels already marked as patch
// -> voxel mesh is too coarse
if
(
voxelMeshSearch::overlaps
(
bb,
nDivs,
faceBb,
patchTypes,
static_cast<unsigned int>(patchCellType::PATCH)
)
)
{
// Determine number of voxels from number of cells
// in mesh
const labelVector& dim = mesh.geometricD();
forAll(dim, i)
{
if (dim[i] != -1)
{
nDivs[i] *= 2;
}
}
Pout<< "Voxel mesh too coarse. Bounding box "
<< faceBb
<< " contains both non-overset and overset patches"
<< ". Refining voxel mesh to " << nDivs << endl;
return false;
}
voxelMeshSearch::fill
(
patchTypes,
@ -136,6 +185,8 @@ void Foam::cellCellStencils::trackingInverseDistance::markBoundaries
}
}
}
return true;
}
@ -522,64 +573,15 @@ bool Foam::cellCellStencils::trackingInverseDistance::update()
DebugInfo<< FUNCTION_NAME << " : Moved zone sub-meshes" << endl;
// Calculate fast search structure for each zone
PtrList<voxelMeshSearch> meshSearches(nZones);
List<labelVector> searchBoxDivisions;
if (dict_.readIfPresent("searchBoxDivisions", searchBoxDivisions))
List<labelVector> searchBoxDivisions(dict_["searchBoxDivisions"]);
if (searchBoxDivisions.size() != nZones)
{
forAll(meshParts_, zonei)
{
meshSearches.set
(
zonei,
new voxelMeshSearch
(
meshParts_[zonei].subMesh(),
searchBoxDivisions[zonei],
true
)
);
}
FatalIOErrorInFunction(dict_) << "Number of searchBoxDivisions "
<< searchBoxDivisions.size()
<< " should equal the number of zones " << nZones
<< exit(FatalIOError);
}
else
{
forAll(meshParts_, zonei)
{
meshSearches.set
(
zonei,
new voxelMeshSearch
(
meshParts_[zonei].subMesh(),
true
)
);
}
}
DebugInfo<< FUNCTION_NAME << " : Constructed cell voxel meshes" << endl;
PtrList<fvMesh> voxelMeshes;
if (debug)
{
voxelMeshes.setSize(meshSearches.size());
forAll(meshSearches, zonei)
{
IOobject meshIO
(
word("voxelMesh" + Foam::name(zonei)),
mesh_.time().timeName(),
mesh_,
IOobject::NO_READ
);
Pout<< "Constructing voxel mesh " << meshIO.objectPath() << endl;
voxelMeshes.set(zonei, meshSearches[zonei].makeMesh(meshIO));
}
}
const boundBox& allBb(mesh_.bounds());
@ -652,35 +654,78 @@ bool Foam::cellCellStencils::trackingInverseDistance::update()
patchBb = meshBb;
}
}
if (patchDivisions.empty())
{
patchDivisions.setSize(nZones);
forAll(patchDivisions, zonei)
{
patchDivisions[zonei] = meshSearches[zonei].nDivs();
}
}
forAll(patchParts, zonei)
{
const labelVector& g = patchDivisions[zonei];
patchParts.set(zonei, new PackedList<2>(cmptProduct(g)));
while (true)
{
patchParts.set
(
zonei,
new PackedList<2>(cmptProduct(patchDivisions[zonei]))
);
markBoundaries
(
meshParts_[zonei].subMesh(),
smallVec_,
bool ok = markBoundaries
(
meshParts_[zonei].subMesh(),
smallVec_,
patchBb[zonei][Pstream::myProcNo()],
patchDivisions[zonei],
patchParts[zonei],
patchBb[zonei][Pstream::myProcNo()],
patchDivisions[zonei],
patchParts[zonei],
meshParts_[zonei].cellMap(),
allPatchTypes
);
meshParts_[zonei].cellMap(),
allPatchTypes
);
//if (returnReduce(ok, andOp<bool>()))
if (ok)
{
break;
}
}
}
DebugInfo<< FUNCTION_NAME << " : Calculated boundary voxel meshes" << endl;
PtrList<voxelMeshSearch> meshSearches(meshParts_.size());
forAll(meshParts_, zonei)
{
meshSearches.set
(
zonei,
new voxelMeshSearch
(
meshParts_[zonei].subMesh(),
patchBb[zonei][Pstream::myProcNo()],
patchDivisions[zonei],
true
)
);
}
DebugInfo<< FUNCTION_NAME << " : Constructed cell voxel meshes" << endl;
PtrList<fvMesh> voxelMeshes;
if (debug)
{
voxelMeshes.setSize(meshSearches.size());
forAll(meshSearches, zonei)
{
IOobject meshIO
(
word("voxelMesh" + Foam::name(zonei)),
mesh_.time().timeName(),
mesh_,
IOobject::NO_READ
);
Pout<< "Constructing voxel mesh " << meshIO.objectPath() << endl;
voxelMeshes.set(zonei, meshSearches[zonei].makeMesh(meshIO));
}
}
if (debug)
{
forAll(patchParts, zonei)

6
src/overset/cellCellStencil/trackingInverseDistance/trackingInverseDistanceCellCellStencil.H
View File

@ -2,7 +2,7 @@
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2017 OpenCFD Ltd.
\\ / A nd | Copyright (C) 2017-2019 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
@ -74,13 +74,13 @@ protected:
// Protected Member Functions
//- Mark voxels of patchTypes with type of patch face
static void markBoundaries
static bool markBoundaries
(
const fvMesh& mesh,
const vector& smallVec,
const boundBox& bb,
const labelVector& nDivs,
labelVector& nDivs,
PackedList<2>& patchTypes,
const labelList& cellMap,

43
src/overset/cellCellStencil/trackingInverseDistance/voxelMeshSearch.C
View File

@ -281,6 +281,14 @@ Foam::voxelMeshSearch::voxelMeshSearch
}
}
// Redo the local bounding box
localBb_ = boundBox(mesh_.points(), false);
const point eps(1e-10, 1e-10, 1e-10);
localBb_.min() = localBb_.min()-eps;
localBb_.max() = localBb_.max()+eps;
if (debug)
{
Pout<< "voxelMeshSearch : mesh:" << mesh_.name()
@ -297,11 +305,13 @@ Foam::voxelMeshSearch::voxelMeshSearch
Foam::voxelMeshSearch::voxelMeshSearch
(
const polyMesh& mesh,
const boundBox& localBb,
const labelVector& nDivs,
const bool doUpdate
)
:
mesh_(mesh),
localBb_(localBb),
nDivs_(nDivs)
{
if (doUpdate)
@ -315,14 +325,6 @@ Foam::voxelMeshSearch::voxelMeshSearch
bool Foam::voxelMeshSearch::update()
{
// Redo the local bounding box
localBb_ = boundBox(mesh_.points(), false);
const point eps(1e-10, 1e-10, 1e-10);
localBb_.min() = localBb_.min()-eps;
localBb_.max() = localBb_.max()+eps;
// Initialise seed cell array
seedCell_.setSize(cmptProduct(nDivs_));
@ -373,6 +375,7 @@ Foam::label Foam::voxelMeshSearch::findCell(const point& p) const
return -1;
}
// Locate the voxel index for this point. Do not clip.
label voxeli = index(localBb_, nDivs_, p, false);
@ -397,10 +400,14 @@ Foam::label Foam::voxelMeshSearch::findCell(const point& p) const
// found does not have to be the absolute 'correct' one as
// long as at least one of the processors finds a cell.
label nextCellOld = -1;
track_.clear();
while (true)
{
if (track_.size() < 5)
{
track_.append(celli);
}
// I am in celli now. How many faces do I have ?
label facei = findIntersectedFace(celli, p);
@ -409,6 +416,7 @@ Foam::label Foam::voxelMeshSearch::findCell(const point& p) const
return celli;
}
const label startOfTrack(max(0, track_.size()-5));
label nextCell;
if (mesh_.isInternalFace(facei))
@ -416,21 +424,24 @@ Foam::label Foam::voxelMeshSearch::findCell(const point& p) const
label own = mesh_.faceOwner()[facei];
label nei = mesh_.faceNeighbour()[facei];
nextCell = (own == celli ? nei : own);
if (findIndex(track_, nextCell, startOfTrack) != -1)
{
return celli;
}
}
else
{
nextCell = searchProcPatch(facei, p);
if (nextCell == nextCellOld)
{
return -1; // point is really out
}
if (nextCell == -1 || nextCell == celli)
{
return nextCell;
}
nextCellOld = nextCell;
else if (findIndex(track_, nextCell, startOfTrack) != -1)
{
return -1; // point is really out
}
}
celli = nextCell;

6
src/overset/cellCellStencil/trackingInverseDistance/voxelMeshSearch.H
View File

@ -68,6 +68,9 @@ class voxelMeshSearch
//- Voxel to seed cell
labelList seedCell_;
//- Cells visited
mutable DynamicList<label> track_;
// Private Member Functions
@ -93,7 +96,8 @@ public:
voxelMeshSearch
(
const polyMesh&,
const labelVector&,
const boundBox& bb,
const labelVector& nDivs,
const bool doUpdate = true
);

5
tutorials/incompressible/overPimpleDyMFoam/twoSimpleRotors/system/fvSchemes
View File

@ -54,6 +54,11 @@ snGradSchemes
oversetInterpolation
{
method cellVolumeWeight;
// Faster but less accurate
//method trackingInverseDistance;
//searchBox (0 0 0)(0.02 0.01 0.01);
//searchBoxDivisions 3{(64 64 1)};
}
fluxRequired