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-   -   Mesh in Boundary Layer (http://www.cfd-online.com/Forums/fluent/38622-mesh-boundary-layer.html)

ryan November 15, 2005 13:19

Mesh in Boundary Layer
 
Hi, Can someone explain to me why we always go for hexa mesh to resolve the boundary layer? Why dont we go for tetra?

Alan November 15, 2005 19:54

Re: Mesh in Boundary Layer
 
Think about best practices!

Vijaykumar Sathyamurthi November 17, 2005 15:21

Re: Mesh in Boundary Layer
 
Hi Ryan,

A tetrahedral mesh is to be avoided if possible while meshing as it creates grids that are not aligned with the flow field. This results in enhanced numerical/false diffusion and thus gives incorrect answers. Regards, Vijay.


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