[ICEM] Split wall in Hex meshing

Gert-Jan · March 19, 2018, 10:57

I have a simple volume with a lot of internal surfaces. I want these to be meshed in a structured way as a split wall, so I obtain a front and back side. I need both separately to be able to define different physics in Pre.

Using Tets/Prisms meshing, this is very straight forward. But in Hex meshing not. Moreover, the help says that Split wall are available to Octree Tetra Meshing only.

For clarification: I know how to create an internal wall (by assigning an internal face to a named surface), but that is not the same as a split wall.
Also, I know I can create split walls by assigning separate material points in volumes next to each internal surface. But that is a bit laborious with 150 internal walls.

So, who can help me with a workaround?

Regs, Gert-Jan

kad · March 21, 2018, 10:40

You can create a hexa split wall after converting the blocking to unstructured mesh. So you start with the internal walls in your blocking. After conversion you can split these internal walls under edit mesh -> split internal walls. Although the manual states that this function is only working for tri mesh, it works in most cases for quad surface mesh, too.

March 19, 2018, 10:57	Split wall in Hex meshing	#1
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	I have a simple volume with a lot of internal surfaces. I want these to be meshed in a structured way as a split wall, so I obtain a front and back side. I need both separately to be able to define different physics in Pre. Using Tets/Prisms meshing, this is very straight forward. But in Hex meshing not. Moreover, the help says that Split wall are available to Octree Tetra Meshing only. For clarification: I know how to create an internal wall (by assigning an internal face to a named surface), but that is not the same as a split wall. Also, I know I can create split walls by assigning separate material points in volumes next to each internal surface. But that is a bit laborious with 150 internal walls. So, who can help me with a workaround? Regs, Gert-Jan Last edited by Gert-Jan; March 19, 2018 at 16:21.

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March 21, 2018, 10:40		#2
kad Senior Member Join Date: Feb 2013 Location: Germany Posts: 200 Rep Power: 24	You can create a hexa split wall after converting the blocking to unstructured mesh. So you start with the internal walls in your blocking. After conversion you can split these internal walls under edit mesh -> split internal walls. Although the manual states that this function is only working for tri mesh, it works in most cases for quad surface mesh, too.