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ENH: distributedTriSurfaceMesh: auto-decomposition; inside/outside support

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This commit is contained in:
mattijs
2019-02-18 13:29:01 +00:00
committed by Andrew Heather
parent d4a97ecd01
commit 48055b2dea
29 changed files with 4142 additions and 520 deletions
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3
tutorials/incompressible/simpleFoam/motorBike/Allrun
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@ -19,7 +19,8 @@ runApplication $decompDict decomposePar
if foamDictionary -entry geometry -value system/snappyHexMeshDict | \
grep -q distributedTriSurfaceMesh
then
runParallel $decompDict surfaceRedistributePar motorBike.obj independent
echo "surfaceRedistributePar does not need to be run anymore"
echo " - distributedTriSurfaceMesh will do on-the-fly redistribution"
fi
runParallel $decompDict snappyHexMesh -overwrite

9
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/Allclean Executable file
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@ -0,0 +1,9 @@
#!/bin/sh
cd ${0%/*} || exit 1 # Run from this directory
. $WM_PROJECT_DIR/bin/tools/CleanFunctions # Tutorial clean functions
cleanCase
(cd constant/triSurface && rm -f box_12_*.obj box.obj box_trans.obj)
#------------------------------------------------------------------------------

53
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/Allrun Executable file
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@ -0,0 +1,53 @@
#!/bin/sh
cd ${0%/*} || exit 1 # Run from this directory
. $WM_PROJECT_DIR/bin/tools/RunFunctions # Tutorial run functions
runApplication blockMesh
# Create fine surface
runApplication -s 1 surfaceRefineRedGreen \
constant/triSurface/box_12.obj constant/triSurface/box_12_1.obj
runApplication -s 2 surfaceRefineRedGreen \
constant/triSurface/box_12_1.obj constant/triSurface/box_12_2.obj
runApplication -s 3 surfaceRefineRedGreen \
constant/triSurface/box_12_2.obj constant/triSurface/box_12_3.obj
runApplication -s 4 surfaceRefineRedGreen \
constant/triSurface/box_12_3.obj constant/triSurface/box_12_4.obj
runApplication -s 5 surfaceRefineRedGreen \
constant/triSurface/box_12_4.obj constant/triSurface/box_12_5.obj
runApplication -s 6 surfaceRefineRedGreen \
constant/triSurface/box_12_5.obj constant/triSurface/box_12_6.obj
runApplication -s 7 surfaceRefineRedGreen \
constant/triSurface/box_12_6.obj constant/triSurface/box_12_7.obj
runApplication -s 8 surfaceRefineRedGreen \
constant/triSurface/box_12_7.obj constant/triSurface/box_12_8.obj
runApplication -s 9 surfaceRefineRedGreen \
constant/triSurface/box_12_8.obj constant/triSurface/box_12_9.obj
runApplication -s 10 surfaceRefineRedGreen \
constant/triSurface/box_12_9.obj constant/triSurface/box.obj
runApplication surfaceTransformPoints \
-rotate '((1 0 0)(1 0.8 0.9))' \
-translate '(0.1 0.101 0.103)' \
constant/triSurface/box.obj constant/triSurface/box_trans.obj
# Run non-parallel
runApplication snappyHexMesh
# Run parallel
runApplication decomposePar
runParallel -s parallel snappyHexMesh
#------------------------------------------------------------------------------

34
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/constant/triSurface/box_12.obj Normal file
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@ -0,0 +1,34 @@
# Wavefront OBJ file written 2018-09-13T12:59:07
o box_12
# points : 8
# faces : 12
# zones : 1
# 0 patch0 (nFaces: 12)
# <points count="8">
v -0.420753 -0.63726 -0.408494
v 0.228766 -0.76226 0.341506
v 0.420753 0.63726 0.408494
v -0.228766 0.76226 -0.341506
v -0.204247 -0.0122595 0.841506
v 0.204247 0.0122595 -0.841506
v -0.853766 0.11274 0.0915064
v 0.853766 -0.11274 -0.0915064
# </points>
# <faces count="12">
g patch0
f 7 1 5
f 2 5 1
f 8 6 3
f 4 3 6
f 8 2 6
f 1 6 2
f 7 5 4
f 3 4 5
f 4 6 7
f 1 7 6
f 2 8 5
f 3 5 8
# </faces>

98
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/system/blockMeshDict Normal file
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@ -0,0 +1,98 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
scale 1;
vertices
(
(-1 -1 -1)
( 1 -1 -1)
( 1 1 -1)
(-1 1 -1)
(-1 -1 1)
( 1 -1 1)
( 1 1 1)
(-1 1 1)
);
blocks
(
hex (0 1 2 3 4 5 6 7) (4 4 4) simpleGrading (1 1 1)
);
edges
(
);
boundary
(
maxY
{
type patch;
faces
(
(3 7 6 2)
);
}
minX
{
type patch;
faces
(
(0 4 7 3)
);
}
maxX
{
type patch;
faces
(
(2 6 5 1)
);
}
minY
{
type patch;
faces
(
(1 5 4 0)
);
}
minZ
{
type patch;
faces
(
(0 3 2 1)
);
}
maxZ
{
type patch;
faces
(
(4 5 6 7)
);
}
);
// ************************************************************************* //

57
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/system/controlDict Normal file
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@ -0,0 +1,57 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 s |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
DebugSwitches
{
//triSurfaceMesh 1;
//distributedTriSurfaceMesh 1;
//triSurface 1;
//PrimitivePatch 1;
}
application snappyHexMesh;
startFrom startTime;
startTime 0;
stopAt endTime;
endTime 2000;
deltaT 1;
writeControl timeStep;
writeInterval 100;
purgeWrite 0;
writeFormat binary;
writePrecision 6;
writeCompression off;
timeFormat general;
timePrecision 6;
runTimeModifiable true;
// ************************************************************************* //

27
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/system/decomposeParDict Normal file
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@ -0,0 +1,27 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object decomposeParDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
numberOfSubdomains 8;
method hierarchical;
coeffs
{
n (2 2 2);
}
// ************************************************************************* //

57
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/system/fvSchemes Normal file
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@ -0,0 +1,57 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object fvSchemes;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
ddtSchemes
{
default steadyState;
}
gradSchemes
{
default Gauss linear;
}
divSchemes
{
default none;
div(phi,U) bounded Gauss upwind;
div(phi,T) bounded Gauss upwind;
div(phi,k) bounded Gauss upwind;
div(phi,epsilon) bounded Gauss upwind;
div(phi,R) bounded Gauss upwind;
div(R) Gauss linear;
div((nuEff*dev(T(grad(U))))) Gauss linear;
}
laplacianSchemes
{
default Gauss linear limited corrected 0.333;
}
interpolationSchemes
{
default linear;
}
snGradSchemes
{
default limited corrected 0.333;
}
// ************************************************************************* //

69
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/system/fvSolution Normal file
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@ -0,0 +1,69 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object fvSolution;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
solvers
{
p_rgh
{
solver PCG;
preconditioner DIC;
tolerance 1e-08;
relTol 0.01;
}
"(U|T|k|epsilon)"
{
solver PBiCGStab;
preconditioner DILU;
tolerance 1e-07;
relTol 0.1;
}
}
SIMPLE
{
nNonOrthogonalCorrectors 2;
pRefCell 0;
pRefValue 0;
residualControl
{
p_rgh 1e-2;
U 1e-4;
T 1e-3;
// possibly check turbulence fields
"(k|epsilon|omega)" 1e-3;
}
}
relaxationFactors
{
fields
{
p_rgh 0.7;
}
equations
{
U 0.2;
T 0.5;
"(k|epsilon)" 0.7;
}
}
// ************************************************************************* //

21
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/system/meshQualityDict Normal file
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@ -0,0 +1,21 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object meshQualityDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Include defaults parameters from master dictionary
#includeEtc "caseDicts/meshQualityDict"
// ************************************************************************* //

287
tutorials/mesh/snappyHexMesh/distributedTriSurfaceMesh/system/snappyHexMeshDict Normal file
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@ -0,0 +1,287 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: v1806 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object snappyHexMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Which of the steps to run
castellatedMesh true;
snap true;
addLayers false;
// Geometry. Definition of all surfaces. All surfaces are of class
// searchableSurface.
// Surfaces are used
// - to specify refinement for any mesh cell intersecting it
// - to specify refinement for any mesh cell inside/outside/near
// - to 'snap' the mesh boundary to the surface
geometry
{
box
{
type distributedTriSurfaceMesh;
file "box.obj"; //"box_12_2.obj";
}
box_trans
{
file "box_trans.obj";
type distributedTriSurfaceMesh;
}
};
// Settings for the castellatedMesh generation.
castellatedMeshControls
{
// Refinement parameters
// ~~~~~~~~~~~~~~~~~~~~~
// If local number of cells is >= maxLocalCells on any processor
// switches from from refinement followed by balancing
// (current method) to (weighted) balancing before refinement.
maxLocalCells 100000;
// Overall cell limit (approximately). Refinement will stop immediately
// upon reaching this number so a refinement level might not complete.
// Note that this is the number of cells before removing the part which
// is not 'visible' from the keepPoint. The final number of cells might
// actually be a lot less.
maxGlobalCells 20000000;
// The surface refinement loop might spend lots of iterations refining just a
// few cells. This setting will cause refinement to stop if <= minimumRefine
// are selected for refinement. Note: it will at least do one iteration
// (unless the number of cells to refine is 0)
minRefinementCells 0;
// Number of buffer layers between different levels.
// 1 means normal 2:1 refinement restriction, larger means slower
// refinement.
nCellsBetweenLevels 1;
// Explicit feature edge refinement
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Specifies a level for any cell intersected by its edges.
// This is a featureEdgeMesh, read from constant/triSurface for now.
features
(
);
// Surface based refinement
// ~~~~~~~~~~~~~~~~~~~~~~~~
// Specifies two levels for every surface. The first is the minimum level,
// every cell intersecting a surface gets refined up to the minimum level.
// The second level is the maximum level. Cells that 'see' multiple
// intersections where the intersections make an
// angle > resolveFeatureAngle get refined up to the maximum level.
refinementSurfaces
{
box
{
// Surface-wise min and max refinement level
level (4 4);
}
box_trans
{
level (5 5);
faceZone box_trans;
cellZone box_trans;
cellZoneInside inside;
}
}
// Resolve sharp angles
resolveFeatureAngle 60;
// Region-wise refinement
// ~~~~~~~~~~~~~~~~~~~~~~
// Specifies refinement level for cells in relation to a surface. One of
// three modes
// - distance. 'levels' specifies per distance to the surface the
// wanted refinement level. The distances need to be specified in
// descending order.
// - inside. 'levels' is only one entry and only the level is used. All
// cells inside the surface get refined up to the level. The surface
// needs to be closed for this to be possible.
// - outside. Same but cells outside.
refinementRegions
{
}
// Mesh selection
// ~~~~~~~~~~~~~~
// After refinement patches get added for all refinementSurfaces and
// all cells intersecting the surfaces get put into these patches. The
// section reachable from the locationInMesh is kept.
// NOTE: This point should never be on a face, always inside a cell, even
// after refinement.
locationInMesh (1e-5 1e-5 1e-5);
// Whether any faceZones (as specified in the refinementSurfaces)
// are only on the boundary of corresponding cellZones or also allow
// free-standing zone faces. Not used if there are no faceZones.
allowFreeStandingZoneFaces false;
}
// Settings for the snapping.
snapControls
{
//- Number of patch smoothing iterations before finding correspondence
// to surface
nSmoothPatch 3;
//- Relative distance for points to be attracted by surface feature point
// or edge. True distance is this factor times local
// maximum edge length.
tolerance 1.0;
//- Number of mesh displacement relaxation iterations.
nSolveIter 30;
//- Maximum number of snapping relaxation iterations. Should stop
// before upon reaching a correct mesh.
nRelaxIter 5;
// Feature snapping
//- Number of feature edge snapping iterations.
// Leave out altogether to disable.
nFeatureSnapIter 2;
//- Detect (geometric) features by sampling the surface (default=false)
implicitFeatureSnap true;
//- Use castellatedMeshControls::features (default = true)
explicitFeatureSnap false;
}
// Settings for the layer addition.
addLayersControls
{
// Are the thickness parameters below relative to the undistorted
// size of the refined cell outside layer (true) or absolute sizes (false).
relativeSizes true;
// Per final patch (so not geometry!) the layer information
layers
{
}
// Expansion factor for layer mesh
expansionRatio 1.0;
// Wanted thickness of final added cell layer. If multiple layers
// is the thickness of the layer furthest away from the wall.
// Relative to undistorted size of cell outside layer.
// is the thickness of the layer furthest away from the wall.
// See relativeSizes parameter.
finalLayerThickness 0.5;
// Minimum thickness of cell layer. If for any reason layer
// cannot be above minThickness do not add layer.
// Relative to undistorted size of cell outside layer.
// See relativeSizes parameter.
minThickness 0.25;
// If points get not extruded do nGrow layers of connected faces that are
// also not grown. This helps convergence of the layer addition process
// close to features.
// Note: changed(corrected) w.r.t 1.7.x! (didn't do anything in 1.7.x)
nGrow 0;
// Advanced settings
// When not to extrude surface. 0 is flat surface, 90 is when two faces
// are perpendicular
featureAngle 60;
// Maximum number of snapping relaxation iterations. Should stop
// before upon reaching a correct mesh.
nRelaxIter 5;
// Number of smoothing iterations of surface normals
nSmoothSurfaceNormals 1;
// Number of smoothing iterations of interior mesh movement direction
nSmoothNormals 3;
// Smooth layer thickness over surface patches
nSmoothThickness 10;
// Stop layer growth on highly warped cells
maxFaceThicknessRatio 0.5;
// Reduce layer growth where ratio thickness to medial
// distance is large
maxThicknessToMedialRatio 0.3;
// Angle used to pick up medial axis points
// Note: changed(corrected) w.r.t 16x! 90 degrees corresponds to 130 in 16x.
minMedianAxisAngle 90;
// Create buffer region for new layer terminations
nBufferCellsNoExtrude 0;
// Overall max number of layer addition iterations. The mesher will exit
// if it reaches this number of iterations; possibly with an illegal
// mesh.
nLayerIter 50;
}
// Generic mesh quality settings. At any undoable phase these determine
// where to undo.
meshQualityControls
{
#include "meshQualityDict"
// Advanced
//- Number of error distribution iterations
nSmoothScale 4;
//- amount to scale back displacement at error points
errorReduction 0.75;
}
// Advanced
// Merge tolerance. Is fraction of overall bounding box of initial mesh.
// Note: the write tolerance needs to be higher than this.
mergeTolerance 1e-6;
// ************************************************************************* //