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ENH: addLayersToFaceZone: testcase for snappyHexMesh layers on faceZones

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mattijs
2014-03-12 14:47:17 +00:00
parent 63a7687ffb
commit e36bc3c22b
10 changed files with 829 additions and 0 deletions
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5
tutorials/mesh/snappyHexMesh/Allrun
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@ -7,6 +7,11 @@ cd ${0%/*} || exit 1 # run from this directory
./Allrun ./Allrun
) )
(
cd addLayersToFaceZone || exit
./Allrun
)
exit 0 exit 0
# These cases are links to solver test cases and are run when the Allrun # These cases are links to solver test cases and are run when the Allrun

16
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/Allrun Executable file
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@ -0,0 +1,16 @@
#!/bin/sh
cd ${0%/*} || exit 1 # run from this directory
# Source tutorial run functions
. $WM_PROJECT_DIR/bin/tools/RunFunctions
runApplication blockMesh
runApplication topoSet
runApplication snappyHexMesh
runApplication checkMesh
# ----------------------------------------------------------------- end-of-file

89
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/constant/polyMesh/blockMeshDict Normal file
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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: dev |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
convertToMeters 1;
vertices
(
( 0 0 0)
(10 0 0)
(10 6 0)
( 0 6 0)
( 0 0 1)
(10 0 1)
(10 6 1)
( 0 6 1)
);
blocks
(
hex (0 1 2 3 4 5 6 7) (10 6 1) simpleGrading (1 1 1)
);
edges
(
);
boundary
(
maxY
{
type patch;
faces
(
(3 7 6 2)
);
}
minY
{
type patch;
faces
(
(1 5 4 0)
);
}
minX
{
type patch;
faces
(
(0 4 7 3)
);
}
maxX
{
type patch;
faces
(
(2 6 5 1)
);
}
frontAndBack
{
type patch;
faces
(
(0 3 2 1)
(4 5 6 7)
);
}
);
mergePatchPairs
(
);
// ************************************************************************* //

49
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/system/controlDict Normal file
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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: dev |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object controlDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
application icoFoam;
startFrom startTime;
startTime 0;
stopAt endTime;
endTime 11111;
deltaT 1;
writeControl timeStep;
writeInterval 20;
purgeWrite 0;
writeFormat ascii;
writePrecision 6;
writeCompression off;
timeFormat general;
timePrecision 6;
runTimeModifiable true;
// ************************************************************************* //

143
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/system/decomposeParDict Normal file
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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: dev |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
note "mesh decomposition control dictionary";
object decomposeParDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
numberOfSubdomains 2;
//- Keep owner and neighbour on same processor for faces in zones:
// preserveFaceZones (heater solid1 solid3);
//- Keep owner and neighbour on same processor for faces in patches:
// (makes sense only for cyclic patches)
//preservePatches (cyclic_half0 cyclic_half1);
//- Keep all of faceSet on a single processor. This puts all cells
// connected with a point, edge or face on the same processor.
// (just having face connected cells might not guarantee a balanced
// decomposition)
// The processor can be -1 (the decompositionMethod chooses the processor
// for a good load balance) or explicitly provided (upsets balance).
//singleProcessorFaceSets ((f0 -1));
//- Keep owner and neighbour of baffles on same processor (i.e. keep it
// detectable as a baffle). Baffles are two boundary face sharing the
// same points.
//preserveBaffles true;
//- Use the volScalarField named here as a weight for each cell in the
// decomposition. For example, use a particle population field to decompose
// for a balanced number of particles in a lagrangian simulation.
// weightField dsmcRhoNMean;
method scotch;
//method hierarchical;
// method simple;
// method metis;
// method manual;
// method multiLevel;
// method structured; // does 2D decomposition of structured mesh
multiLevelCoeffs
{
// Decomposition methods to apply in turn. This is like hierarchical but
// fully general - every method can be used at every level.
level0
{
numberOfSubdomains 64;
//method simple;
//simpleCoeffs
//{
// n (2 1 1);
// delta 0.001;
//}
method scotch;
}
level1
{
numberOfSubdomains 4;
method scotch;
}
}
// Desired output
simpleCoeffs
{
n (2 1 1);
delta 0.001;
}
hierarchicalCoeffs
{
n (1 2 1);
delta 0.001;
order xyz;
}
metisCoeffs
{
/*
processorWeights
(
1
1
1
1
);
*/
}
scotchCoeffs
{
//processorWeights
//(
// 1
// 1
// 1
// 1
//);
//writeGraph true;
//strategy "b";
}
manualCoeffs
{
dataFile "decompositionData";
}
structuredCoeffs
{
// Patches to do 2D decomposition on. Structured mesh only; cells have
// to be in 'columns' on top of patches.
patches (movingWall);
// Method to use on the 2D subset
method scotch;
}
//// Is the case distributed? Note: command-line argument -roots takes
//// precedence
//distributed yes;
//// Per slave (so nProcs-1 entries) the directory above the case.
//roots
//(
// "/tmp"
// "/tmp"
//);
// ************************************************************************* //

57
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/system/fvSchemes Normal file
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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: dev |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object fvSchemes;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
ddtSchemes
{
default Euler;
}
gradSchemes
{
default Gauss linear;
grad(p) Gauss linear;
}
divSchemes
{
default none;
div(phi,U) Gauss linear;
}
laplacianSchemes
{
default Gauss linear orthogonal;
}
interpolationSchemes
{
default linear;
}
snGradSchemes
{
default orthogonal;
}
fluxRequired
{
default no;
p ;
}
// ************************************************************************* //

46
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/system/fvSolution Normal file
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@ -0,0 +1,46 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: dev |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
location "system";
object fvSolution;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
solvers
{
p
{
solver PCG;
preconditioner DIC;
tolerance 1e-06;
relTol 0;
}
U
{
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-05;
relTol 0;
}
}
PISO
{
nCorrectors 2;
nNonOrthogonalCorrectors 0;
pRefCell 0;
pRefValue 0;
}
// ************************************************************************* //

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

315
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/system/snappyHexMeshDict Normal file
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@ -0,0 +1,315 @@
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: dev |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object snappyHexMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Which of the steps to run
castellatedMesh false;
snap false;
addLayers true;
// Geometry. Definition of all surfaces. All surfaces are of class
// searchableSurface.
geometry
{};
// 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 2000000;
// 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;
// Allow a certain level of imbalance during refining
// (since balancing is quite expensive)
// Expressed as fraction of perfect balance (= overall number of cells /
// nProcs). 0=balance always.
maxLoadUnbalance 0.10;
// 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 explicitly provided
// edges.
// This is a featureEdgeMesh, read from constant/triSurface for now.
// Specify 'levels' in the same way as the 'distance' mode in the
// refinementRegions (see below). The old specification
// level 2;
// is equivalent to
// levels ((0 2));
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
{}
// Feature angle:
// - used if min and max refinement level of a surface differ
// - used if feature snapping (see snapControls below) is used
resolveFeatureAngle 30;
// 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
// increasing 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 location(s)InMesh is kept.
// NOTE: This point should never be on a face, always inside a cell, even
// after refinement.
//
// There are two different ways of specifying the regions to keep:
// 1. a single locationInMesh. All the 'zoned' surfaces are marked as such
// in the refinementSurfaces with the faceZone and cellZone keywords.
//
// or
//
// 2. multiple locationsInMesh, with per location the name of the cellZone.
// This uses walking to determine zones and automatically creates
// faceZones on the outside of cellZones.
// Ad 1. Specify a single location and how to treat faces inbetween
// cellZones
locationInMesh (5 0.28 0.43);
// 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 true;
}
// Settings for the snapping.
snapControls
{
// Number of patch smoothing iterations before finding correspondence
// to surface
nSmoothPatch 3;
// Maximum relative distance for points to be attracted by surface.
// True distance is this factor times local maximum edge length.
// Note: changed(corrected) w.r.t 17x! (17x used 2* tolerance)
tolerance 2.0;
// Number of mesh displacement relaxation iterations.
nSolveIter 30;
// Maximum number of snapping relaxation iterations. Should stop
// before upon reaching a correct mesh.
nRelaxIter 5;
}
// 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 false;
// Expansion factor for layer mesh
expansionRatio 1.0;
// Wanted thickness of the layer furthest away from the wall.
// If relativeSizes this is relative to undistorted size of cell
// outside layer.
finalLayerThickness 0.3;
// Minimum overall thickness of total layers. If for any reason layer
// cannot be above minThickness do not add layer.
// If relativeSizes this is relative to undistorted size of cell
// outside layer..
minThickness 0.1;
// Per final patch (so not geometry!) the layer information
layers
{
maxY
{
nSurfaceLayers 2;
}
minY
{
nSurfaceLayers 1;
}
A
{
nSurfaceLayers 2;
}
}
// 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 17x! (didn't do anything in 17x)
nGrow 0;
// Advanced settings
// Static analysis of starting mesh
// When not to extrude surface. 0 is flat surface, 90 is when two faces
// are perpendicular
featureAngle 130;
// When to merge patch faces. Default is 0.5*featureAngle
//mergePatchFacesAngle 45;
// Do not extrude around sharp edge if not both faces are extruded.
// Default is 0.5*featureAngle. Set to -180 always attempt extrusion
layerTerminationAngle -180;
// Stop layer growth on highly warped cells
maxFaceThicknessRatio 0.5;
// Patch displacement
// Number of smoothing iterations of surface normals
nSmoothSurfaceNormals 1;
// Smooth layer thickness over surface patches
nSmoothThickness 10;
// Medial axis analysis
// Angle used to pick up medial axis points
// Note: changed(corrected) w.r.t 17x! 90 degrees corresponds to 130
// in 17x.
minMedialAxisAngle 90;
// Reduce layer growth where ratio thickness to medial
// distance is large
maxThicknessToMedialRatio 0.3;
// Number of smoothing iterations of interior mesh movement direction
nSmoothNormals 3;
// Mesh shrinking
// Optional: at non-patched sides allow mesh to slip if extrusion
// direction makes angle larger than slipFeatureAngle. Default is
// 0.5*featureAngle.
slipFeatureAngle 30;
// Maximum number of snapping relaxation iterations. Should stop
// before upon reaching a correct mesh.
nRelaxIter 5;
// 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;
//
// // Max number of iterations after which relaxed meshQuality controls
// // get used. Up to nRelaxedIter it uses the settings in
// // meshQualityControls,
// // after nRelaxedIter it uses the values in
// // meshQualityControls::relaxed.
// nRelaxedIter 20;
//
// // Additional reporting: if there are just a few faces where there
// // are mesh errors (after adding the layers) print their face centres.
// // This helps in tracking down problematic mesh areas.
// //additionalReporting true;
}
// Generic mesh quality settings. At any undoable phase these determine
// where to undo.
meshQualityControls
{
// Specify mesh quality constraints in separate dictionary so can
// be reused (e.g. checkMesh -meshQuality)
#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;
// ************************************************************************* //

88
tutorials/mesh/snappyHexMesh/addLayersToFaceZone/system/topoSetDict Normal file
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/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: dev |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object topoSetDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
actions
(
// FaceZone A
{
name leftA;
type cellSet;
action new;
source boxToCell;
sourceInfo
{
box (-100 -100 -100) (2 100 100);
}
}
{
name A;
type faceSet;
action new;
source boxToFace;
sourceInfo
{
box (1.999 -100 -100) (2.001 100 100);
}
}
{
name A;
type faceZoneSet;
action new;
source setsToFaceZone;
sourceInfo
{
faceSet A; // name of faceSet
cellSet leftA; // name of cellSet of slave side
}
}
// FaceZone B
{
name leftB;
type cellSet;
action new;
source boxToCell;
sourceInfo
{
box (-100 -100 -100) (8 100 100);
}
}
{
name B;
type faceSet;
action new;
source boxToFace;
sourceInfo
{
box (7.999 -100 -100) (8.001 100 100);
}
}
{
name B;
type faceZoneSet;
action new;
source setsToFaceZone;
sourceInfo
{
faceSet B; // name of faceSet
cellSet leftB; // name of cellSet of slave side
}
}
);
// ************************************************************************* //