tetrahedral or hexahedral mesh?

srr · September 21, 2010, 13:32

Hi All,

I am about to set an aeronautical simulation, but I am not sure if I should use tetrahedral or hexahedral mesh, I was checking on internet but I found that both of them are used, so I don't have a good reason to choose one of them.

Thank you for your answers.

Jade M · September 21, 2010, 18:08

This is a good question. It took me a while to understand the issues when I began using commercial codes. Hex meshes both mesh and solve faster. Tets are easier to apply to complex geometries and also do not tend to have issues with inflation.

Good luck!

srr · September 21, 2010, 23:24

Thank you Jade, I think I will choose Tet because it is a complicated geometry

sidspark12 · September 22, 2010, 05:43

hello.....

well i think u should go for hybrid mesh. go for tet mesh in the viscinity of the geometry and hex mesh away from ur geometry. that will give you good result with less memory uses.....for hybrid mesh you have to divide ur volume in several different volumes.....good luck....

Jade M · September 23, 2010, 13:56

Using a hybrid mesh is a fantastic idea. I did not suggest this approach since it sounded like you are new to meshing. I think that tet is a great first try and then you can make further refinements as you understand the mesh controls. Good luck!

September 21, 2010, 13:32	tetrahedral or hexahedral mesh?	#1
srr New Member srr Join Date: Feb 2010 Posts: 25 Rep Power: 16	Hi All, I am about to set an aeronautical simulation, but I am not sure if I should use tetrahedral or hexahedral mesh, I was checking on internet but I found that both of them are used, so I don't have a good reason to choose one of them. Thank you for your answers.

September 23, 2010, 13:56		#5
Jade M Senior Member Join Date: Feb 2010 Posts: 148 Rep Power: 17	Using a hybrid mesh is a fantastic idea. I did not suggest this approach since it sounded like you are new to meshing. I think that tet is a great first try and then you can make further refinements as you understand the mesh controls. Good luck! Last edited by Jade M; October 4, 2010 at 15:24.

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September 21, 2010, 18:08		#2
Jade M Senior Member Join Date: Feb 2010 Posts: 148 Rep Power: 17	This is a good question. It took me a while to understand the issues when I began using commercial codes. Hex meshes both mesh and solve faster. Tets are easier to apply to complex geometries and also do not tend to have issues with inflation. Good luck!

September 21, 2010, 23:24		#3
srr New Member srr Join Date: Feb 2010 Posts: 25 Rep Power: 16	Thank you Jade, I think I will choose Tet because it is a complicated geometry

September 22, 2010, 05:43		#4
sidspark12 New Member siddharth jain Join Date: Sep 2009 Posts: 16 Rep Power: 17	hello..... well i think u should go for hybrid mesh. go for tet mesh in the viscinity of the geometry and hex mesh away from ur geometry. that will give you good result with less memory uses.....for hybrid mesh you have to divide ur volume in several different volumes.....good luck....