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[snappyHexMesh] keyword nGrow undefined in "...snappyHexMeshDict.addLayersControls" |
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April 11, 2013, 09:36 |
keyword nGrow undefined in "...snappyHexMeshDict.addLayersControls"
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New Member
Damiano Natali
Join Date: Mar 2013
Location: Genova, Italy
Posts: 17
Rep Power: 13 |
Hi all OpenFOAMers,
I'm using snappyHexMesh (OF v.2.2). Unfortunately the process breaks down with the following error: Code:
--> FOAM FATAL IO ERROR: keyword nGrow is undefined in dictionary "/home/damiano/openfoamcourse/spillway/system/snappyHexMeshDict.addLayersControls" file: /home/damiano/openfoamcourse/spillway/system/snappyHexMeshDict.addLayersControls from line 201 to line 271. From function dictionary::lookupEntry(const word&, bool, bool) const in file db/dictionary/dictionary.C at line 402. FOAM exiting Code:
// 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 { "(bottomWall|dam).*" { nSurfaceLayers 2; } } // Expansion factor for layer mesh expansionRatio 1.3; //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 0.7; //0.3; // 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 //0.1; // 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 1; // 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; } Any ideas?! Thanks for your attention, Damiano Last edited by rama13; April 11, 2013 at 09:50. Reason: upoladed attachment |
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