CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

1 way and 2 way FSI in ANSYS Workbench with Fluent and ANSYS Structural

Register Blogs Members List Search Today's Posts Mark Forums Read

Like Tree1Likes
  • 1 Post By jwillie2000

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   January 16, 2013, 09:49
Default 1 way and 2 way FSI in ANSYS Workbench with Fluent and ANSYS Structural
  #1
Member
 
James Willie
Join Date: Mar 2009
Posts: 81
Rep Power: 15
jwillie2000 is on a distinguished road
Hello All,

Trying to set up a simple case in Workbench for FSI and i am running into problems. I selected FSI:Fluid Flow (FLUENT)->Static Structural and then set up the Fluent case geo and mesh and solved the solution. I then could not get the solid geometry opened under Static Structural. When i open Model, the geo i get is the same as that for the CFD without the solid. I am looking for a good tutorial that can help me set up such a case. The main idea is just to use the CFD computed pressure as input load for the structural simulation. But i will also want to know how workbench can do 2 way FSI as well.

Thanks!
Jimmy
chaitanyaarige likes this.
jwillie2000 is offline   Reply With Quote

Old   January 17, 2013, 03:23
Default
  #2
Senior Member
 
Bionico's Avatar
 
Flavio
Join Date: Sep 2011
Location: Brescia, Italy
Posts: 181
Rep Power: 13
Bionico is on a distinguished road
Hello willie,
I'm not sure but I think that the 2-way FSI isn't possible with FLUENT: maybe you need CFX instead.

Regards
__________________
Bionico
Bionico is offline   Reply With Quote

Old   January 17, 2013, 05:13
Default
  #3
Member
 
Join Date: Nov 2011
Location: Czech Republic
Posts: 97
Rep Power: 13
Sixkillers is on a distinguished road
2-FSI Structural is possible in Fluent via Workbnech's Coupling block. Definetely take a look at "Fluid-Structure Interaction (FSI) with ANSYS Fluent 14.5" course, which can be downloaded from ANSYS Customer Portal.
Sixkillers is offline   Reply With Quote

Old   March 16, 2013, 11:47
Default
  #4
New Member
 
Gowrav Shenoy
Join Date: Feb 2013
Posts: 22
Rep Power: 11
Gowrav is on a distinguished road
Hi James,
One tip, I dont know whether it will work in your case or not..
While Modeling Model both Solid and Fluid in same geometry, as two different volumes- design modeler..
Mesh it, two separate mesh will be there.
For fluid analysis - "Suppress" Solid Mesh in mesh tool itself.
Complete the analysis import results by linking it to static structural
before proceeding to loading Unsuppress the solid and Suppress the fluid mesh.. Apply load on interface.. As required..
rem fluid and solid should be to separate volumes in same design modeler session..
You can obtain them by 'Freeze' one before creating other,,
Have a try..
Gowrav is offline   Reply With Quote

Old   November 24, 2017, 01:02
Default
  #5
Member
 
Vignesh Lakshmanan
Join Date: Nov 2016
Posts: 79
Rep Power: 8
ViLaks is on a distinguished road
Hello All,

I am trying to enhance the flow in natural convection HT problem. I have an idea of incorporating a vibrating plate inside my geometry, so that the vibrating plate causes ripples and enhances the flow and hence, the HT rate is enhanced. Can anyone suggest if and how this can be modelled using FSI? I am using Fluent for simulating the natural convection problem.

Thanks and Regards
Vignesh
ViLaks is offline   Reply With Quote

Old   November 24, 2017, 03:54
Default
  #6
New Member
 
Gowrav Shenoy
Join Date: Feb 2013
Posts: 22
Rep Power: 11
Gowrav is on a distinguished road
Hi Vilaks,

In my opinion,
Its moving wall case. Model the vibrating plate as moving wall in CFD.
Unless there is no force transfer from the fluid to a solid vibrating plate, Coupled analysis(FSI) is not necessary. Simple flow analysis with plate having dynamic condition will resolve your case. If you want to go for stress analysis on vibrating plate, then FSI may be necessary.

-Gowrav
Gowrav is offline   Reply With Quote

Old   November 27, 2017, 00:21
Default
  #7
Member
 
Vignesh Lakshmanan
Join Date: Nov 2016
Posts: 79
Rep Power: 8
ViLaks is on a distinguished road
Quote:
Originally Posted by Gowrav View Post
Hi Vilaks,

In my opinion,
Its moving wall case. Model the vibrating plate as moving wall in CFD.
Unless there is no force transfer from the fluid to a solid vibrating plate, Coupled analysis(FSI) is not necessary. Simple flow analysis with plate having dynamic condition will resolve your case. If you want to go for stress analysis on vibrating plate, then FSI may be necessary.

-Gowrav
Dear Gowrav,

Thanks for your reply. Should I model the moving wall with udf to represent vibration ? In that case should I write the udf to represent position or velocity?

With Regards
Vignesh
ViLaks is offline   Reply With Quote

Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 01:29.