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March 28, 2019, 09:26 |
Multi Layers SnappyHexMesh
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#1 |
New Member
Edoardo
Join Date: Mar 2019
Posts: 15
Rep Power: 7 |
Good Morning everybody,
I am Edoardo and I am currently working on the Ahmed Body. Right now I am trying to give different setting for the layers in snappy but I do not know why nothing happened; it seems like the local parameters that I gave to in the Dict were not red. In particular I want to give different layer specification ( such as n of layers, expansion ratio and the final layer thickness) to different patches. I hope it is possible to do that in snappy. This is what I wrote in my snappyDict for the layers: addLayersControls { // Are the thickness parameters below relative to the undistorted // size of the refined cell outside layer (true) or absolute sizes (false). relativeSizes true; //GLOBAL PARAMETERS // Expansion factor for layer mesh expansionRatio 1.3; // 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. // See relativeSizes parameter. finalLayerThickness 0.53; // 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 0.08; // Per final patch (so not geometry!) the layer information layers { "Ahmed_patch0|Ahmed_patch2|Ahmed_patch4|Ahmed_patc h6|Ahmed_patch8|Ahmed_patch9|" { //LOCAL PARAMETERS nSurfaceLayers 5; expansionRatio 1.3; finalLayerThickness 0.53; } "groundWall" { //LOCAL PARAMETERS nSurfaceLayers 5; expansionRatio 1.3; firstLayerThickness 0.09; } } Thanks in advance, Edoardo. |
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March 28, 2019, 11:03 |
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#2 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,762
Rep Power: 66 |
As a workaround, you can try running snappy more than once, each time with a different snappyHexMeshDict.
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Tags |
layer addition, openfoam, snappy hex mesh |
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