[ICEM] ICEM meshing trouble shooting.

manupanand · January 6, 2023, 03:34

I had attached the figure of geometry. I had specified all the boundaries according to the figure. After meshing, I load the mesh on fluent, the wall is not fully available. Why?

Gert-Jan · January 6, 2023, 05:52

In ICEM, if you show the mesh, do you see elements on this internal wall?

manupanand · January 7, 2023, 01:39

Thank you for reply, yes mesh is available in whole domain, but wall boundary is missing.

Gert-Jan · January 8, 2023, 09:13

Provided, the wall is a thin surface, then you forgot to set it as Internal wall or as Split wall.
You should set this using the Second Icon of Mesh setup were you also set inflation.
The difference between internal and split wall is that with internal wall, the mesh is conformal on both sides of the wall. Using Split wall, you will have different mesh on both sides.
With conformal wall, you have the possibility in Fluent to define a wall or an interface. With Split wall, you can only make it a wall.

manupanand · January 9, 2023, 02:16

Quote:

Originally Posted by Gert-Jan

Provided, the wall is a thin surface, then you forgot to set it as Internal wall or as Split wall.
You should set this using the Second Icon of Mesh setup were you also set inflation.
The difference between internal and split wall is that with internal wall, the mesh is conformal on both sides of the wall. Using Split wall, you will have different mesh on both sides.
With conformal wall, you have the possibility in Fluent to define a wall or an interface. With Split wall, you can only make it a wall.

Thank you for the reply.I tried it but it didn't work for me. I tired split wall and internal wall.

Gert-Jan · January 9, 2023, 03:08

It can be anything.......
- you say it doesn't work? Where? In ICEM or in Fluent? Please be clear if you want help. I cannot read your mind.
- Are you sure it is a thin wall? Do you know what this means/implies? Can you show your geometry in ICEM?
- After meshing, do you see elements on the thin wall?

manupanand · January 9, 2023, 19:23

I am attaching the pictures of mesh. I am not an expert in this, i tried to specify split wall to all after I didn't get the expected result on interior wall

manupanand · January 10, 2023, 02:04

Thank you for your support through the reply, I had solved it, now. the problem was the geometry file has two surface in same interior wall. I removed these walls and created new wall with split walls which solved my problem.

January 6, 2023, 05:52		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	In ICEM, if you show the mesh, do you see elements on this internal wall? Last edited by Gert-Jan; January 6, 2023 at 08:42.

January 8, 2023, 09:13		#4
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	Provided, the wall is a thin surface, then you forgot to set it as Internal wall or as Split wall. You should set this using the Second Icon of Mesh setup were you also set inflation. The difference between internal and split wall is that with internal wall, the mesh is conformal on both sides of the wall. Using Split wall, you will have different mesh on both sides. With conformal wall, you have the possibility in Fluent to define a wall or an interface. With Split wall, you can only make it a wall. manupanand likes this.

January 9, 2023, 03:08		#6
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,827 Rep Power: 27	It can be anything....... - you say it doesn't work? Where? In ICEM or in Fluent? Please be clear if you want help. I cannot read your mind. - Are you sure it is a thin wall? Do you know what this means/implies? Can you show your geometry in ICEM? - After meshing, do you see elements on the thin wall? manupanand likes this.

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January 7, 2023, 01:39		#3
manupanand Member MANU P ANAND Join Date: Jul 2014 Location: Daegu , REPUBLIC OF KOREA Posts: 36 Rep Power: 11	Thank you for reply, yes mesh is available in whole domain, but wall boundary is missing.

January 10, 2023, 02:04		#8
manupanand Member MANU P ANAND Join Date: Jul 2014 Location: Daegu , REPUBLIC OF KOREA Posts: 36 Rep Power: 11	Thank you for your support through the reply, I had solved it, now. the problem was the geometry file has two surface in same interior wall. I removed these walls and created new wall with split walls which solved my problem.