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LBRS February 20, 2008 15:03

ICEM meshes inside my wing
Hi all,

I have a very complex geometry in two parts: wing and body (the root of the wing intersects the body). It is actually only a half bird geometry in a box domain.

Strangely enough, I can make ICEM to mesh outside of the body, but it always meshes inside of the wing. It was written in the tutorials that I have to put a LIVE body point where I want the mesh to be, but it didn't change a lot. I tried several meshing setup.

This is a screenshot, but I'm affraid it's not very clear

How could I enforce ICEM not to mesh inside this surface mesh ?

Kindest regards

A.S. February 20, 2008 23:59

Re: ICEM meshes inside my wing
Delete the blocks inside the wing

LBRS February 21, 2008 04:16

Re: ICEM meshes inside my wing
"Delete the blocks inside the wing "

You mean removing the cells manually ? I don't know how to automatically select all these cells...

A.S. February 21, 2008 06:47

Re: ICEM meshes inside my wing
sorry VORFN the block inside the wing, I did it like that

Charles February 21, 2008 08:02

Re: ICEM meshes inside my wing
I think there is a misunderstanding here .... Moving blocks to VORFN is for a hexa mesh, and I get the idea from the image that he is building a tetra mesh? Main thing is to make sure that your geometry is clean, i.e. if you run Repair Geometry, you should get red curves only, then put a body point outside the bird's body, and have another go. Make sure that the part of the symmetry plane that intersects the body has been removed. In fact, I am almost sure that is your problem.

A.S. February 21, 2008 08:32

Re: ICEM meshes inside my wing
Charles and LBRS sorry for the confusion, I had always used ICEM-HEXA and advised based on that.

LBRS February 21, 2008 10:09

Re: ICEM meshes inside my wing
Thank you a lot for the advides. It seems that a cleaning of the geometry (with a CAD software) really helps.

Also, I have moved the wing a little. Maybe there was holes in the wing outside of the body, which caused the problem.

Now it works much better. Thanx !

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