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Old   July 20, 2010, 10:20
Default Comparison of different mesh types
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Konrad Uebel
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I did a comparsion of three different meshes, all the same geometry (all tets, all hexa, hybrid mesh splitted by interfaces). After a few simulations I gained acceptable (comparable) results between the hybrid and hexa mesh. The results of the tets mesh are way of. I used Ansys 12.1, 3d tube, rke, with two inlets, one tangential and the other one central and normal to flow direction (relativly high swirl number).

Has anyone a idea where those differences come from?

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Old   July 27, 2010, 03:32
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Tetra elements cause more numerical dissipation than hexa elements...Always use hexa, as far as ure geometry allows it.
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