[ICEM] How to Non-conformal mesh

Mohammad74 · October 28, 2021, 12:36

Hello, I'm trying to generate a good quality hexahedral mesh for a relatively simple but large domain shown in the image below using the ICEM CFD:
dom.jpg

The problem is that I need a really fine grid near the cubes and If I use a conformal mesh, number of cells within the entire domain will be much higher than i can handle.
So I'm wondering if there is any way to make a structured non-conformal mesh for my problem using ICEM CFD. Something like the picture below:
grid.png

I've had this problem for a while now so any help would be much appreciated

Thanks.

P.S. I'm pretty new to ICEM and couldn't find my answer elsewhere, but I have been using GAMBIT for mesh generation for quite sometime.

Gert-Jan · November 1, 2021, 07:53

What you show is a Cutcell-type of mesh. You cannot generate this using ICEM.
Within ANSYS, you can only generate this type of mesh using the mesher inside Fluent. Also, you can only use this mesh in Fluent. CFX won't eat it because of so-called hanging nodes.

October 28, 2021, 12:36	How to Non-conformal mesh	#1
Mohammad74 Member Mohammad Shafiee Join Date: Apr 2021 Posts: 30 Rep Power: 7	Hello, I'm trying to generate a good quality hexahedral mesh for a relatively simple but large domain shown in the image below using the ICEM CFD: dom.jpg The problem is that I need a really fine grid near the cubes and If I use a conformal mesh, number of cells within the entire domain will be much higher than i can handle. So I'm wondering if there is any way to make a structured non-conformal mesh for my problem using ICEM CFD. Something like the picture below: grid.png I've had this problem for a while now so any help would be much appreciated Thanks. P.S. I'm pretty new to ICEM and couldn't find my answer elsewhere, but I have been using GAMBIT for mesh generation for quite sometime. Svetlana and pouya.75 like this.

November 1, 2021, 07:53		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,928 Rep Power: 28	What you show is a Cutcell-type of mesh. You cannot generate this using ICEM. Within ANSYS, you can only generate this type of mesh using the mesher inside Fluent. Also, you can only use this mesh in Fluent. CFX won't eat it because of so-called hanging nodes. Svetlana, aero_head, Mohammad74 and 1 others like this.

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