[ICEM] Prism layers in solid zone ICEM CFD

arunraj · November 24, 2024, 13:34

Hi all,

I am working on conjugate heat transfer. I have two zones in my computational domain: one solid and one fluid. The fluid zone is rectangular channel surrounded by solid zone <wall with some thickness>. I am currently trying to create Prism layers in fluid zone. However, at the fluid-solid interface, a surface common for both solid and fluid, the Prism layers are formed for both solid and fluid in ICEM CFD. It is weird as Prism layers are needed only in fluid zone. How to solve this issue? Kindly provide some detailed explanation.

Gert-Jan · November 25, 2024, 09:27

In Setup mesh (second icon in the ribbon), there is a long list with your volumes and all boundaries. There are tick boxes that give you control on which volumes and boundaries are included in the inflation (or prisms) generation.
So, if you don't want inflation in your solid, then untick that volume.

arunraj · November 25, 2024, 10:57

Thanks mate. I did and got it.

Gert-Jan · November 25, 2024, 14:56

I never use Delauney. I always use Octree and it always works.
Can you share a screenshot of the long list with settings for volumes and boundaries?(you can add a picture using "Go Advanced")

arunraj · November 26, 2024, 02:17

Yes, mate. its working for all meshes. I did something wrong previously. I have a followup question. When i do mesh check operation in ICEM CFD, i didnt receive any errors but i received the following problems.
. Multiple edges
. unconnected vertices
Can it cause any problems in solver?

Gert-Jan · November 26, 2024, 06:39

I think it depends on the solver. Better check it yourself.

I always use CFX. This never complains about this, if I remember correctly.

November 24, 2024, 13:34	Prism layers in solid zone ICEM CFD	#1
arunraj Senior Member Arun raj.S Join Date: Jul 2011 Posts: 213 Rep Power: 17	Hi all, I am working on conjugate heat transfer. I have two zones in my computational domain: one solid and one fluid. The fluid zone is rectangular channel surrounded by solid zone <wall with some thickness>. I am currently trying to create Prism layers in fluid zone. However, at the fluid-solid interface, a surface common for both solid and fluid, the Prism layers are formed for both solid and fluid in ICEM CFD. It is weird as Prism layers are needed only in fluid zone. How to solve this issue? Kindly provide some detailed explanation.

November 25, 2024, 10:57		#3
arunraj Senior Member Arun raj.S Join Date: Jul 2011 Posts: 213 Rep Power: 17	Thanks mate. I did and got it. Last edited by arunraj; November 26, 2024 at 02:13.

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November 25, 2024, 09:27		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,994 Rep Power: 29	In Setup mesh (second icon in the ribbon), there is a long list with your volumes and all boundaries. There are tick boxes that give you control on which volumes and boundaries are included in the inflation (or prisms) generation. So, if you don't want inflation in your solid, then untick that volume.

November 25, 2024, 14:56		#4
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,994 Rep Power: 29	I never use Delauney. I always use Octree and it always works. Can you share a screenshot of the long list with settings for volumes and boundaries?(you can add a picture using "Go Advanced")

November 26, 2024, 02:17		#5
arunraj Senior Member Arun raj.S Join Date: Jul 2011 Posts: 213 Rep Power: 17	Yes, mate. its working for all meshes. I did something wrong previously. I have a followup question. When i do mesh check operation in ICEM CFD, i didnt receive any errors but i received the following problems. . Multiple edges . unconnected vertices Can it cause any problems in solver?

November 26, 2024, 06:39		#6
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,994 Rep Power: 29	I think it depends on the solver. Better check it yourself. I always use CFX. This never complains about this, if I remember correctly.