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orthogonal cells marked as nonOrthogonal
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Hi Foamers,
I have some troubles with cells which are marked as nonOrthogonal but are according to my interpretation perfectly orthogonal. checkMesh says maxOrth: 75.xxx with 10k cells in a mesh of 3.1M cells. I'm using LTSInterfoam in a more or less simple channel flow with a ship. The cells causing troubles are created with a refinementBox in sHM If somebody could give me an explanation to that phenomena and maybe an explanation on how I can avoid them, would be great. See attached some pictures which should illustrate the problem: Attachment 26933 Attachment 26934 Attachment 26936 Attachment 26937 Attachment 26938 If you have further questions or need more information let me know regards Colin |
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Only the cells that lie between different levels of refinement are affected, right? This is caused by the hanging nodes introduced by the mesher in order to achieve the refinement.
Check this post http://www.cfd-online.com/Forums/ope...tml#post452712 The cells fall into checkMesh's definition of a non-orthogonal cell although the cell - to the user - seems perfectly orthogonal. |
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