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Mesh in Boundary Layer

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Old   November 15, 2005, 13:19
Default Mesh in Boundary Layer
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ryan
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Hi, Can someone explain to me why we always go for hexa mesh to resolve the boundary layer? Why dont we go for tetra?
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Old   November 15, 2005, 19:54
Default Re: Mesh in Boundary Layer
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Alan
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Think about best practices!
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Old   November 17, 2005, 15:21
Default Re: Mesh in Boundary Layer
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Vijaykumar Sathyamurthi
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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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