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-   -   aspect ratio of boundary layer elements in COMSOL (http://www.cfd-online.com/Forums/mesh-generation/114438-aspect-ratio-boundary-layer-elements-comsol.html)

TryMyBest March 11, 2013 07:53

aspect ratio of boundary layer elements in COMSOL
 
Dear all,
I am trying to generate a nice boundary layer, however, the mesh quality is always low in the boundary. I suppose this is because my BL elements always have a high aspect ratio. When I introduce more points along the edges, the COMSOL mesher simply produces a thinner BL thus keeping the aspect ratio of the BL elements high.
I have tried fiddling around with the thickness of the first layer and the thickness adjustment factor but without noticeable success so far. Is there perhaps a trick I do not know (I am still a relative beginner).
Thanks a lot in advance!


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