Pj. |
September 3, 2014 08:22 |
snappyHex 2.2.1 works while 2.3.0 gets core dumped
The following 2 dictionaries get successfully executed by OF 2.2.1
Code:
***HEADER REMOVED TO SHORTEN THE MESSAGE***
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object blockMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
X1 -18650; //-35000.0000;
X2 15000.0000;
Y1 -1500.0000;
Y2 1500.0000;
Z1 0.0000;
Z2 2000.0000;
Z3 4000.0000;
vertices
(
($X1 $Y1 $Z1) //0
($X2 $Y1 $Z1) //1
($X1 $Y2 $Z1) //2
($X2 $Y2 $Z1) //3
($X1 $Y1 $Z2) //4
($X2 $Y1 $Z2) //5
($X1 $Y2 $Z2) //6
($X2 $Y2 $Z2) //7
($X1 $Y1 $Z3) //8
($X2 $Y1 $Z3) //9
($X1 $Y2 $Z3) //10
($X2 $Y2 $Z3) //11
);
blocks
(
hex (0 1 3 2 4 5 7 6)
(126 13 6)
simpleGrading (1.00 1.00 20.00)
hex (4 5 7 6 8 9 11 10)
(126 13 6)
simpleGrading (1.00 1.00 0.10)
);
edges
(
);
patches
(
patch // KIND: patch, simmetryPlane, wall...
FRONT
(
(0 4 6 2)
(4 8 10 6)
)
patch // KIND: patch, simmetryPlane, wall...
BACK
(
(3 7 5 1)
(7 11 9 5)
)
patch // KIND: patch, simmetryPlane, wall...
RIGHT
(
(0 1 5 4)
(4 5 9 8)
)
patch // KIND: patch, simmetryPlane, wall...
LEFT
(
(3 2 6 7)
(7 6 10 11)
)
patch // KIND: patch, simmetryPlane, wall...
BOT
(
(0 1 3 2)
)
patch // KIND: patch, simmetryPlane, wall...
TOP
(
(8 9 11 10)
)
);
mergePatchPairs
(
);
Code:
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 1.7.1 |
| \\ / A nd | Web: www.OpenFOAM.com |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object snappyHexMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// NOTE: LARGE NUMBER OF ITERATIONS VERSION!
// Which of the steps to run
castellatedMesh true;
snap false;
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
{
refinementBox
{
type searchableBox;
min (-10000 -1500 0); //(-2 -1.5 0);
max (15000 1500 4000); //( 3.5 1.5 0.7);
}
refinementBox2
{
type searchableBox;
min (0 -1500 0); //(-2 -1.5 0);
max (15000 1500 4000); //( 3.5 1.5 0.7);
}
};
// 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 500000000;
// 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 800000000;
// 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 1000;
// 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 15;
// 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
{
}
// Resolve sharp angles
resolveFeatureAngle 30; //90;
// 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
{
refinementBox
{
mode inside;
levels ((1.0 1));
}
refinementBox2
{
mode inside;
levels ((1.0 2));
}
}
// 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 (0 0 1000);
allowFreeStandingZoneFaces false;
}
// Settings for the snapping.
snapControls
{
//- Number of patch smoothing iterations before finding correspondence
// to surface
nSmoothPatch 10;
//- Relative distance for points to be attracted by surface feature point
// or edge. True distance is this factor times local
// maximum edge length.
tolerance 4.0;
//- Number of mesh displacement relaxation iterations.
nSolveIter 200;
//- Maximum number of snapping relaxation iterations. Should stop
// before upon reaching a correct mesh.
nRelaxIter 40;
// Feature snapping
//- Number of feature edge snapping iterations.
// Leave out altogether to disable.
nFeatureSnapIter 10;
//- Detect (geometric) features by sampling the surface
implicitFeatureSnap false;
//- Use castellatedMeshControls::features
explicitFeatureSnap true;
//- Detect features between multiple surfaces
// (only for explicitFeatureSnap, default = false)
multiRegionFeatureSnap true;
}
// 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 1.2;
//- Wanted thickness of final added cell layer. If multiple layers
// is the thickness of the layer furthest away from the wall.
// See relativeSizes parameter.
finalLayerThickness 0.8;
//- 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.
minThickness 0.0000000001; //0.001;
//- 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.
nGrow 0; //5;
// Advanced settings
//- When not to extrude surface. 0 is flat surface, 90 is when two faces
// make straight angle.
featureAngle 130;
//- Maximum number of snapping relaxation iterations. Should stop
// before upon reaching a correct mesh.
nRelaxIter 40;
// Number of smoothing iterations of surface normals
nSmoothSurfaceNormals 20;
// Number of smoothing iterations of interior mesh movement direction
nSmoothNormals 30;
// Smooth layer thickness over surface patches
nSmoothThickness 20;
// 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
minMedianAxisAngle 90;
// Create buffer region for new layer terminations
nBufferCellsNoExtrude 0;
// Overall max number of layer addition iterations
nLayerIter 300;
}
// Generic mesh quality settings. At any undoable phase these determine
// where to undo.
meshQualityControls
{
//- Maximum non-orthogonality allowed. Set to 180 to disable.
maxNonOrtho 65;
//- Max skewness allowed. Set to <0 to disable.
maxBoundarySkewness 20;
maxInternalSkewness 4;
//- Max concaveness allowed. Is angle (in degrees) below which concavity
// is allowed. 0 is straight face, <0 would be convex face.
// Set to 180 to disable.
maxConcave 80;
//- Minimum projected area v.s. actual area. Set to -1 to disable.
minFlatness 0.5;
//- Minimum pyramid volume. Is absolute volume of cell pyramid.
// Set to a sensible fraction of the smallest cell volume expected.
// Set to very negative number (e.g. -1E30) to disable.
minVol 1e-13;
minTetQuality 1e-30;
//- Minimum face area. Set to <0 to disable.
minArea -1;
//- Minimum face twist. Set to <-1 to disable. dot product of face normal
//- and face centre triangles normal
minTwist 0.02;
//- minimum normalised cell determinant
//- 1 = hex, <= 0 = folded or flattened illegal cell
minDeterminant 0.00001;
//- minFaceWeight (0 -> 0.5)
minFaceWeight 0.02;
//- minVolRatio (0 -> 1)
minVolRatio 0.01;
//must be >0 for Fluent compatibility
minTriangleTwist -1;
// Advanced
//- Number of error distribution iterations
nSmoothScale 30;
//- amount to scale back displacement at error points
errorReduction 0.75;
}
// Advanced
// Flags for optional output
// 0 : only write final meshes
// 1 : write intermediate meshes
// 2 : write volScalarField with cellLevel for postprocessing
// 4 : write current intersections as .obj files
debug 0;
// Merge tolerance. Is fraction of overall bounding box of initial mesh.
// Note: the write tolerance needs to be higher than this.
mergeTolerance 1E-6;
// ************************************************************************* //
but, if I run them using OF 2.3.0
Code:
/*---------------------------------------------------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.3.0 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
Build : 2.3.0-f5222ca19ce6
Exec : snappyHexMesh
Date : Sep 03 2014
Time : 14:13:46
Host : "Blow04"
PID : 16893
Case : /home/pol/LUCA/mapping_WtSliceSmall/spectrumRecovery
nProcs : 1
sigFpe : Enabling floating point exception trapping (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster
allowSystemOperations : Allowing user-supplied system call operations
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time
Create mesh for time = 0
Read mesh in = 0.17 s
Overall mesh bounding box : (-18650 -1500 0) (15000 1500 4000)
Relative tolerance : 1e-06
Absolute matching distance : 0.0340194
Reading refinement surfaces.
Read refinement surfaces in = 0 s
Reading refinement shells.
Refinement level 1 for all cells inside refinementBox
Refinement level 2 for all cells inside refinementBox2
Read refinement shells in = 0 s
Setting refinement level of surface to be consistent with shells.
Checked shell refinement in = 0 s
Reading features.
Read features in = 0 s
Determining initial surface intersections
-----------------------------------------
Edge intersection testing:
Number of edges : 62274
Number of edges to retest : 62274
Number of intersected edges : 0
Calculated surface intersections in = 0.15 s
Initial mesh : cells:19656 faces:62274 points:23114
Cells per refinement level:
0 19656
Adding patches for surface regions
----------------------------------
Patch Type Region
----- ---- ------
Added patches in = 0 s
Selecting decompositionMethod none
Layer thickness specified as final layer and expansion ratio.
Refinement phase
----------------
Found point (0 0 1000) in cell 7377 on processor 0
Surface refinement iteration 0
------------------------------
Marked for refinement due to surface intersection : 0 cells.
Determined cells to refine in = 0.02 s
Selected for refinement : 0 cells (out of 19656)
Stopping refining since too few cells selected.
Removing mesh beyond surface intersections
------------------------------------------
Found point (0 0 1000) in global region 0 out of 1 regions.
Keeping all cells in region 0 containing point (0 0 1000)
Selected for keeping : 19656 cells.
Edge intersection testing:
Number of edges : 62274
Number of edges to retest : 0
Number of intersected edges : 0
Shell refinement iteration 0
----------------------------
Marked for refinement due to distance to explicit features : 0 cells.
Marked for refinement due to refinement shells : 14664 cells.
Determined cells to refine in = 0.08 s
Selected for internal refinement : 14664 cells (out of 19656)
Edge intersection testing:
Number of edges : 377736
Number of edges to retest : 362453
Number of intersected edges : 0
Refined mesh in = 0.94 s
After refinement shell refinement iteration 0 : cells:122304 faces:377736 points:133399
Cells per refinement level:
0 4992
1 117312
Shell refinement iteration 1
----------------------------
Marked for refinement due to distance to explicit features : 0 cells.
Marked for refinement due to refinement shells : 69888 cells.
Determined cells to refine in = 0.05 s
Selected for internal refinement : 69888 cells (out of 122304)
Edge intersection testing:
Number of edges : 1864056
Number of edges to retest : 1704130
Number of intersected edges : 0
Refined mesh in = 4.8 s
After refinement shell refinement iteration 1 : cells:611520 faces:1864056 points:641449
Cells per refinement level:
0 4992
1 47424
2 559104
Shell refinement iteration 2
----------------------------
Marked for refinement due to distance to explicit features : 0 cells.
Marked for refinement due to refinement shells : 0 cells.
Determined cells to refine in = 0.2 s
Selected for internal refinement : 0 cells (out of 611520)
Stopping refining since too few cells selected.
Dangling coarse cells refinement iteration 0
--------------------------------------------
Determined cells to refine in = 0.04 s
Selected for refinement : 0 cells (out of 611520)
Stopping refining since too few cells selected.
Dangling coarse cells refinement iteration 0
--------------------------------------------
Determined cells to refine in = 0.03 s
Selected for refinement : 0 cells (out of 611520)
Stopping refining since too few cells selected.
Splitting mesh at surface intersections
---------------------------------------
Introducing baffles for 0 faces that are intersected by the surface.
Edge intersection testing:
Number of edges : 1864056
Number of edges to retest : 0
Number of intersected edges : 0
Created baffles in = 1.87 s
After introducing baffles : cells:611520 faces:1864056 points:641449
Cells per refinement level:
0 4992
1 47424
2 559104
Introducing baffles to block off problem cells
----------------------------------------------
#0 Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#1 Foam::sigSegv::sigHandler(int) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libOpenFOAM.so"
#2 in "/lib/x86_64-linux-gnu/libc.so.6"
#3 Foam::List<int>::List(int, int const&) in "/opt/openfoam230/platforms/linux64GccDPOpt/bin/snappyHexMesh"
#4 Foam::meshRefinement::nearestPatch(Foam::List<int> const&) const in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libautoMesh.so"
#5 Foam::meshRefinement::markFacesOnProblemCells(Foam::dictionary const&, bool, Foam::Field<double> const&, Foam::List<int> const&) const in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libautoMesh.so"
#6 Foam::meshRefinement::handleSnapProblems(Foam::snapParameters const&, bool, bool, Foam::Field<double> const&, Foam::dictionary const&, Foam::Time&, Foam::List<int> const&, Foam::List<int> const&) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libautoMesh.so"
#7 Foam::meshRefinement::baffleAndSplitMesh(bool, Foam::snapParameters const&, bool, bool, Foam::Field<double> const&, bool, double, Foam::dictionary const&, Foam::Time&, Foam::List<int> const&, Foam::List<int> const&, Foam::Vector<double> const&) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libautoMesh.so"
#8 Foam::autoRefineDriver::baffleAndSplitMesh(Foam::refinementParameters const&, Foam::snapParameters const&, bool, Foam::dictionary const&) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libautoMesh.so"
#9 Foam::autoRefineDriver::doRefine(Foam::dictionary const&, Foam::refinementParameters const&, Foam::snapParameters const&, bool, Foam::dictionary const&) in "/opt/openfoam230/platforms/linux64GccDPOpt/lib/libautoMesh.so"
#10
in "/opt/openfoam230/platforms/linux64GccDPOpt/bin/snappyHexMesh"
#11 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6"
#12
in "/opt/openfoam230/platforms/linux64GccDPOpt/bin/snappyHexMesh"
Segmentation fault (core dumped)
Is this a bug? Or did I make a mistake somewhere?
|