|October 7, 2013, 08:34||
Prism layering options
Join Date: Jul 2009
Location: Portsmouth, England
Posts: 506Rep Power: 15
There's two parameters in ICEM which deals with how prism layers are built and treated in relation to the prism-to-tetra transition: Max Height Over Base (MHOB) and Prism Height Limit Factor (PHLF). It seems to me from reading the material and trying different meshes (so I know what they do) that the MHOB is only suitable to cap the layering of prisms if they are not floated, and instead all required layers are build one after another. Whereas, the PHLF is only suitable when floating the prisms to give a smooth prims-to-tetra transition.
Has anyone used both the MHOB and the PHLF at the same time and was it with floated or non-floated prisms? Also what about using only MHOB for floated prisms? Interested in finding out what others do.
|October 8, 2013, 13:10||
Retired from CFD Online
Join Date: Mar 2009
Location: Ann Arbor, MI
Blog Entries: 1Rep Power: 39
Floating the prisms is similar to using PHLF, except that you don't set the initial height (it gets calculated).
You can't really use MHOB and PHLF at the same time. Which ever ratio it hits first will prevent the other one from being reached.
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