Ansys Fluent 19.2 constantly creates non-overlapping zone (wall)

dariuszkoz · December 18, 2018, 16:08

Greetings,

In my project, I have created geometry in NX and exported it as parasolid to Ansys Designmodeler.
I have named selected faces and generated mesh.
While generating mesh I deleted connections that were automaticaly created (because I want to set monitors on interfaces).
Than I have saved mesh for Fluent.
After importing mesh scaling, checking and improving quality I tried to create interfaces manually but after selecting interface bondary from one zone and another it creates non-overlaping interfaces with WALL type preventing from fluid to flow from one zone to another.
Each zone interfaces are perfectly alligned and I think it is almost impossible that they are not overlaping.
Maybe problem is because of exporting geometry as parasolid? Im wondering if there is any solution of this problem.

burgreen · August 23, 2019, 18:16

Fluent 2019 R1 will read in legacy mesh interfaces fine. But it does not properly create mesh interfaces any more. It creates non-overlapping wall zones.

Has anyone experienced this same issue? And have you succeeding in creating non-conformal interfaces that communicate between the adjacent domains?

seali33 · September 19, 2019, 16:42

I believe that this article will help with your confusion

http://www.afs.enea.it/project/neptu...tg/node121.htm

burgreen · September 19, 2019, 16:49

Thanks. My issue actually turned out to be a mistake in assigning too large of a resistance value in porous media adjacent to the interface.

December 18, 2018, 16:08	Ansys Fluent 19.2 constantly creates non-overlapping zone (wall)	#1
dariuszkoz New Member Darek Join Date: Dec 2018 Posts: 4 Rep Power: 7	Greetings, In my project, I have created geometry in NX and exported it as parasolid to Ansys Designmodeler. I have named selected faces and generated mesh. While generating mesh I deleted connections that were automaticaly created (because I want to set monitors on interfaces). Than I have saved mesh for Fluent. After importing mesh scaling, checking and improving quality I tried to create interfaces manually but after selecting interface bondary from one zone and another it creates non-overlaping interfaces with WALL type preventing from fluid to flow from one zone to another. Each zone interfaces are perfectly alligned and I think it is almost impossible that they are not overlaping. Maybe problem is because of exporting geometry as parasolid? Im wondering if there is any solution of this problem. starry09 and franc1 like this.

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August 23, 2019, 18:16		#2
burgreen New Member Join Date: Apr 2011 Posts: 7 Rep Power: 15	Fluent 2019 R1 will read in legacy mesh interfaces fine. But it does not properly create mesh interfaces any more. It creates non-overlapping wall zones. Has anyone experienced this same issue? And have you succeeding in creating non-conformal interfaces that communicate between the adjacent domains?

September 19, 2019, 16:42		#3
seali33 New Member Ali Join Date: May 2018 Posts: 1 Rep Power: 0	I believe that this article will help with your confusion http://www.afs.enea.it/project/neptu...tg/node121.htm

September 19, 2019, 16:49		#4
burgreen New Member Join Date: Apr 2011 Posts: 7 Rep Power: 15	Thanks. My issue actually turned out to be a mistake in assigning too large of a resistance value in porous media adjacent to the interface.