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August 25, 2020, 12:16 |
Problem with snappyhexmesh and layers
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#1 |
Senior Member
TWB
Join Date: Mar 2009
Posts: 402
Rep Power: 19 |
Hi,
I'm trying to generate mesh for a 3d wing. I also wanted to add layers to resolve the viscous forces. However, the mesh I got look quite bad. My configuration is as follows below. What must I change to get the layers surrounding the wall to be "nice"? Code:
addLayersControls { // Are the thickness parameters below relative to the undistorted // size of the refined cell outside layer (true) or absolute sizes (false). relativeSizes false; // Per final patch (so not geometry!) the layer information layers { //"(wing).*" wing_wall { nSurfaceLayers 3; } } // 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. // Relative to undistorted size of cell outside layer. // See relativeSizes parameter. firstLayerThickness 2e-5; // 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 0.1; Last edited by quarkz; August 25, 2020 at 19:57. |
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August 25, 2020, 22:06 |
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#2 |
Member
Ardalan
Join Date: Jul 2012
Location: Atlanta, USA
Posts: 77
Rep Power: 13 |
Hi,
Make the background mesh finer and make the resolution regionally finer. increase the number of refinement in 'refinementBox'. Good luck Ardalan |
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August 31, 2020, 23:09 |
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#3 |
Senior Member
TWB
Join Date: Mar 2009
Posts: 402
Rep Power: 19 |
Ok I will try, thanks!
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