[sandy13]

Dear foamers,
Please any body can help me. My snappy utility for my work, but it does not add layers. My geometry and the snappy is like in photos, can any one have a go on my snappy dictionary below..
/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.1 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object snappyHexMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

castellatedMesh true;
snap true;
addLayers true;

geometry
{
injector.stl
{
type triSurfaceMesh;
name injector;
}
}


castellatedMeshControls
{
maxLocalCells 500000;
maxGlobalCells 1000000;
minRefinementCells 100;
nCellsBetweenLevels 6;
features
();
refinementSurfaces
{
injector
{
level (4 3);
}
}

refinementRegions
{
}
resolveFeatureAngle 200;

locationInMesh (0 0 0);
allowFreeStandingZoneFaces false;
}
snapControls
{
nSmoothPatch 3;
tolerance 4;
nSolveIter 60;
nRelaxIter 5;
}
addLayersControls
{
relativeSizes true;
layers
{
injector
{
nSurfaceLayers 4;
}
}/*--------------------------------*- C++ -*----------------------------------*\
| ========= | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
| \\ / O peration | Version: 2.1.1 |
| \\ / A nd | Web: www.OpenFOAM.org |
| \\/ M anipulation | |
\*---------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class dictionary;
object snappyHexMeshDict;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

castellatedMesh true;
snap true;
addLayers true;

geometry
{
injector.stl
{
type triSurfaceMesh;
name injector;
}
}


castellatedMeshControls
{
maxLocalCells 500000;
maxGlobalCells 1000000;
minRefinementCells 100;
nCellsBetweenLevels 6;
features
();
refinementSurfaces
{
injector
{
level (4 3);
}
}

refinementRegions
{
}
resolveFeatureAngle 200;

locationInMesh (0 0 0);
allowFreeStandingZoneFaces false;
}
snapControls
{
nSmoothPatch 3;
tolerance 4;
nSolveIter 60;
nRelaxIter 5;
}
addLayersControls
{
relativeSizes true;
layers
{
injector
{
nSurfaceLayers 4;
}
}
expansionRatio 1.0;
finalLayerThickness 0.3;
minThickness 0.1;
nGrow 1;
featureAngle 30;
nRelaxIter 3;
nSmoothSurfaceNormals 1;
nSmoothNormals 3;
nSmoothThickness 10;
maxFaceThicknessRatio 0.5;
maxThicknessToMedialRatio 0.3;
minMedianAxisAngle 130;
nBufferCellsNoExtrude 1;
nLayerIter 50;
}
meshQualityControls
{
maxNonOrtho 65;
maxBoundarySkewness 20;
maxInternalSkewness 4;
maxConcave 80;
minVol 1e-13;
minTetQuality 1e-30;
minArea -1;
minTwist 0.05;
minDeterminant 0.001;
minFaceWeight 0.05;
minVolRatio 0.01;
minTriangleTwist -1;
nSmoothScale 4;
errorReduction 0.75;
minFlatness 0.5;
}

debug 0;
mergeTolerance 1e-6;

expansionRatio 1.0;
finalLayerThickness 0.3;
minThickness 0.1;
nGrow 1;
featureAngle 30;
nRelaxIter 3;
nSmoothSurfaceNormals 1;
nSmoothNormals 3;
nSmoothThickness 10;
maxFaceThicknessRatio 0.5;
maxThicknessToMedialRatio 0.3;
minMedianAxisAngle 130;
nBufferCellsNoExtrude 1;
nLayerIter 50;
}
meshQualityControls
{
maxNonOrtho 65;
maxBoundarySkewness 20;
maxInternalSkewness 4;
maxConcave 80;
minVol 1e-13;
minTetQuality 1e-30;
minArea -1;
minTwist 0.05;
minDeterminant 0.001;
minFaceWeight 0.05;
minVolRatio 0.01;
minTriangleTwist -1;
nSmoothScale 4;
errorReduction 0.75;
minFlatness 0.5;
}

debug 0;
mergeTolerance 1e-6;

Sandy,

[wyldckat]

Quick answer: Check the second tutorial at this page: http://openfoamwiki.net/index.php/Sn...als_and_Guides - namely the one from the 7th OpenFOAM Workshop

[sh.d]

hi sandy
i create geometry in solid and save it .stl
but when open in linux its there is wrong
can you help me?

[sandy13]

Originally Posted by sh.d

hi sandy
i create geometry in solid and save it .stl
but when open in linux its there is wrong
can you help me?

Dear sh.d,
In fact I do not why your file does not open with linux, but have you saved your file as an ascci format stl file. I think you should pick ascci when you save the file If you did not and I wish If I can help you more.
Sandy,

[sh.d]

Hi sandy
Thank you very much for answering my question. But I do not know how to save your file format ascci?
Do you know?

[sandy13]

Originally Posted by sh.d

Hi sandy
Thank you very much for answering my question. But I do not know how to save your file format ascci?
Do you know?

Okay, you mad your geometry by solid works and saved it in STL. now go to linux and use blender software. In blender import this STL file and open it you will see your geometry the export it as an STL and in the exporting window there is option of ascii, pick this option and unpick apply modifiers, so you will get it and then you can use it in OF.
Sandy,

[sh.d]

Originally Posted by sandy13

Okay, you mad your geometry by solid works and saved it in STL. now go to linux and use blender software. In blender import this STL file and open it you will see your geometry the export it as an STL and in the exporting window there is option of ascii, pick this option and unpick apply modifiers, so you will get it and then you can use it in OF.
Sandy,

thank you very very much sandy

[sh.d]

Originally Posted by sh.d

thank you very very much sandy

Dear sany
i import my geometry in blender but i cant see it!!!!!!!!!!!!!!!!!!
?



i open it
the all normal face is (0 0 0)
is it right?

[sandy13]

Originally Posted by sh.d

Dear sany
i import my geometry in blender but i cant see it!!!!!!!!!!!!!!!!!!
?



i open it
the all normal face is (0 0 0)
is it right?

Hi, I imported your geometry, it is working, I do not know what is going on with you, It should work...,
Sandy

[sh.d]

Hi Sandy
Do you know how to use Add layer?
thanks a lot

[sandy13]

Originally Posted by sh.d

Hi Sandy
Do you know how to use Add layer?
thanks a lot

Hi, I never succeeded in adding layers, sorry I can not help you that much about it but If you manged to do it please post me...
Sandy,

[nimasam]

Originally Posted by sh.d

Hi Sandy
Do you know how to use Add layer?
thanks a lot

first :

addLayers       true;

second: in addLayersControls

     layers
    {

        ".*" //put your patch name here
        {
            nSurfaceLayers 1; //put numbers of your layers here
        }

    }

[sandy13]

Originally Posted by nimasam

first :

addLayers       true;

second: in addLayersControls

     layers
    {

        ".*" //put your patch name here
        {
            nSurfaceLayers 1; //put numbers of your layers here
        }

    }

Hi, thank you so much for your post, I tried to do the same without any success, may be I have something wrong some where. Thank you so much.
Sandy,

[nimasam]

Hello

look at the following test case:

[sh.d]

hi sandi
probably your name of addlayer is wrong
i think its true:
injector.stl_injector
second injector is the name in .stl file and not geometry

[sh.d]

hello
sandy look at the .stl file and name it in the file and name add layer in snappyHexMeshDict file

[sh.d]

hi
i want to create 2d mesh around airfoil
but when i use checkMesh is this error:Number of edges not aligned with or perpendicular to non-empty directions
and the surface of airfoil not snap
can you help me please?

[nimasam]

Originally Posted by sh.d

hi
i want to create 2d mesh around airfoil
but when i use checkMesh is this error:Number of edges not aligned with or perpendicular to non-empty directions
and the surface of airfoil not snap
can you help me please?

did you try to use extrudeMesh ?

[sandy13]

Originally Posted by nimasam

did you try to use extrudeMesh ?

Dear searcher,
Sorry I can not help you that much about this error, and I did not use extrudeMesh before, sorry again and good luck with your research.
Sandy,

[sh.d]

Hi nimasam
yes i use the extrudMesh
please look at the my testcase