Problem with auto-generated interfaces

Thomas MADELEINE · May 4, 2015, 05:53

Hi every one !

Sorry to disturb you on something that simple, I am quite new on Fluent.

I have a model with small tubes quite close to each other in order to catch the vorticity inside my geometry (I calculate the torque on these tubes).

When I open Fluent, the software is creating a lot of interfaces between some tubes walls (I have 100 tubes and he creates like 30 interfaces).

Note: I am using WorkBench and ANSYS Meshing, I have created Named surfaces for every thing.

The problem is, I have to delete these one by one and change the property to wall one by one too. Quite long procedure.

So I wanted to know if there is such an option to deactivate the auto-generating interface or to set the precision gap (when Fluent will consider that two surfaces are an interface)

Sorry for my bad English and thanks you all for your attention.

Thomas

vasava · May 7, 2015, 03:29

Hello Thomas!!

You can delete the unwanted/extra interfaces in Ansys meshing itself. It will save you a lot of time while setting up case in fluent.

Thomas MADELEINE · May 7, 2015, 03:46

Hi Vasava,
Thanks a lot for your help. It is the connection stuff in the ANSYS Meshing, isn't it ?

vasava · May 7, 2015, 04:52

yes it is. You can simply click on the interface title and the interface faces will be highlighted (all the other boundaries will turn transparent).

Also in the details you can check the number of faces etc. In case the interface is not set correctly you can correct it manually.

Thomas MADELEINE · May 7, 2015, 05:10

thank you a lot ! I deleted it and it worked perfectly !

I will take a closer look next time on ANSYS Meshing before closing it to import in Fluent ^^

May 4, 2015, 05:53	Problem with auto-generated interfaces	#1
Thomas MADELEINE Senior Member Thomas MADELEINE Join Date: Oct 2014 Posts: 126 Rep Power: 11	Hi every one ! Sorry to disturb you on something that simple, I am quite new on Fluent. I have a model with small tubes quite close to each other in order to catch the vorticity inside my geometry (I calculate the torque on these tubes). When I open Fluent, the software is creating a lot of interfaces between some tubes walls (I have 100 tubes and he creates like 30 interfaces). Note: I am using WorkBench and ANSYS Meshing, I have created Named surfaces for every thing. The problem is, I have to delete these one by one and change the property to wall one by one too. Quite long procedure. So I wanted to know if there is such an option to deactivate the auto-generating interface or to set the precision gap (when Fluent will consider that two surfaces are an interface) Sorry for my bad English and thanks you all for your attention. Thomas

May 7, 2015, 03:29		#2
vasava Senior Member Paritosh Vasava Join Date: Oct 2012 Location: Lappeenranta, Finland Posts: 732 Rep Power: 22	Hello Thomas!! You can delete the unwanted/extra interfaces in Ansys meshing itself. It will save you a lot of time while setting up case in fluent. artymk4 likes this.

May 7, 2015, 04:52		#4
vasava Senior Member Paritosh Vasava Join Date: Oct 2012 Location: Lappeenranta, Finland Posts: 732 Rep Power: 22	yes it is. You can simply click on the interface title and the interface faces will be highlighted (all the other boundaries will turn transparent). Also in the details you can check the number of faces etc. In case the interface is not set correctly you can correct it manually. artymk4 likes this.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[OpenFOAM] paraview 3.8 auto rescale doesn't work	JDR	ParaView	18	September 14, 2013 15:15
Problem with Automatic Default Interfaces	jehan	CFX	1	June 15, 2010 10:11
Velocity profiles problem behind the elbow (3D problem)	kabat73	FLUENT	8	May 9, 2010 04:26
Multiple Sahdows / Periodicity Problem	Michael Pi	FLUENT	0	July 11, 2005 07:42
asymmetric solution generated by symmetric problem	Twiti	CFX	7	October 16, 2004 19:12

May 7, 2015, 03:46		#3
Thomas MADELEINE Senior Member Thomas MADELEINE Join Date: Oct 2014 Posts: 126 Rep Power: 11	Hi Vasava, Thanks a lot for your help. It is the connection stuff in the ANSYS Meshing, isn't it ?

May 7, 2015, 05:10		#5
Thomas MADELEINE Senior Member Thomas MADELEINE Join Date: Oct 2014 Posts: 126 Rep Power: 11	thank you a lot ! I deleted it and it worked perfectly ! I will take a closer look next time on ANSYS Meshing before closing it to import in Fluent ^^