rotational periodic boundary conditions in ICEM

user0314 · June 20, 2011, 17:22

How do I set rotationally periodic BCs in ICEM tetra?

I set Global Mesh Parameters>Periodicity>Rotational Periodicity, base (0 0 0), axis of rotation (0 0 1) z-plane, and angle 45.

I have a 45 degree pi slice of a disk. Then I generated a tetra volume mesh automatically from ICEM.

Then I set the BC of the periodic faces to periodic in the Output>Boundary Conditions.

I output the mesh and read it into fluent, and get the error:

Warning: Innapropriate zone type (periodic) for one-sided face zone, Changing to wall.

The periodic faces are different parts. I tried setting the periodic faces to the same part but get the same error.

Any suggestions?

Thanks!

Ludvik · June 21, 2011, 02:57

Periodic mesh works just with Octree algorithm.
Use Octree to create (Lock) surf mesh for other volume algorithms.

June 20, 2011, 17:22	rotational periodic boundary conditions in ICEM	#1
user0314 New Member Join Date: May 2011 Posts: 23 Rep Power: 15	How do I set rotationally periodic BCs in ICEM tetra? I set Global Mesh Parameters>Periodicity>Rotational Periodicity, base (0 0 0), axis of rotation (0 0 1) z-plane, and angle 45. I have a 45 degree pi slice of a disk. Then I generated a tetra volume mesh automatically from ICEM. Then I set the BC of the periodic faces to periodic in the Output>Boundary Conditions. I output the mesh and read it into fluent, and get the error: Warning: Innapropriate zone type (periodic) for one-sided face zone, Changing to wall. The periodic faces are different parts. I tried setting the periodic faces to the same part but get the same error. Any suggestions? Thanks!

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June 21, 2011, 02:57		#2
Ludvik Member Join Date: Apr 2009 Location: Czech Republic Posts: 65 Rep Power: 18	Periodic mesh works just with Octree algorithm. Use Octree to create (Lock) surf mesh for other volume algorithms.