Boundary layer inflation thickness

Using SimScale CAD & Meshing
3

Hi @AnetaNovak

@jousefm is perfectly right regarding the minimum thickness of boundary layer and minimum thickness. If you want to have a total layer thickness of 6mm here are following steps that you should perform-

  1. Decide the thickness of the farthest layer(first layer thickness) and use the expansion ratio to calculate the size of cells nearest to the boundary(the thickness of each layer will be in geometric progression). You can get the thickness of each layer which you can simply add to check if the sum of thickness is 6mm or not.

    inflation%20layer
    inflation%20layer629×379 12.6 KB

  2. The minimum thickness is just a limit that will determine if the inflation layer will form or not. If the overall thickness goes below this value then the layer addition step will stop and no boundary layers are added. So there is no need to change this value as it will not go below Zero :rofl:. You should focus on the number of layers, the expansion ratio and first layer thickness to generate a successful inflation layer.

Thanks
Ani

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