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Solution on hexa mesh vs solution on tetra mesh |
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December 8, 2011, 18:55 |
Solution on hexa mesh vs solution on tetra mesh
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#1 |
Senior Member
Join Date: Oct 2010
Location: Zurich
Posts: 176
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Hi,
I have a block structured hexa mesh (made in ICEM CFD) for my geometry and a converged solution for fluid flow and conjugate heat transfer on this mesh (solved in CFX). I have not used tetra mesh with prism layers before for fluid flow. I now want mesh the same geometry with the automated tetra + prism layer mesh in ICEM CFD and solve the same problem as above for this mesh and then compare the results with those on the block structured hexa mesh. How should I ensure that any difference in results that I finally get is only due to change in nature of mesh from hexa to tetra and not other factors like mesh density etc.? Thanks for your inputs |
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December 9, 2011, 05:22 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,871
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Do a mesh sensitivity study of both meshing options separately. You can only compare fully mesh independent meshes of each type to get a meaningful result.
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December 10, 2011, 10:35 |
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#3 |
Senior Member
Join Date: Oct 2010
Location: Zurich
Posts: 176
Rep Power: 16 |
Thanks Glen for your reply. Yes, that makes sense. I will do grid independence studies on both types pf meshes as per your suggestion before comparing the results.
Best regards. |
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Tags |
cfx, hexa mesh, tetra mesh |
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