Learning Forum

[ashishkumar.gupta]

Hello,

so my inner race has 1000 rpm and outer race iis Fixed...

oil entering from left side at 10.6 m/s and leaving from right side..

.so what type of wall motion should be selected for this type of FSI in Fluent?

I guess bottom wall face should be moving with 1000 rpm and all othe rshould be kept as 'Stationary'. But since my lower +upper wall face = FSI; how can I give diff. wall motion to them in Ansys Fluent?

 

 

 

Because in  the System coupling, a Data transfer is only possible between 1 region from Solid and 1 region from Fluid.

 

[Rahul]

You can create two separate interfaces here: one for faces in contact with the outer race and the other for the face in contact with the inner race. Similarly, create two System Coupling Region in Transient Structural for corresponding faces. Then define data transfers for separately for the inner and outer race.

[ashishkumar.gupta]

Hi Rahul,

I was trying the way u suggested. It was working fine (I used to get 2 Data trasnfer for each pair).

But now thje same thing is not working (I AM getting only 1 Data trasnfer for each pair AS SHOWN IN SS BELOW)

 

 

Am I doing anything wrong? I could not find any info on the OPTION of choosing 1 Data trasfer (1 way FSI) or 2 Data trasfer (2 way FSI). How does the Ansys SC knows I want 2 way or 1 way? Its very weird...Hope to get some inpuit soon. Thanks!!

[ashishkumar.gupta]

Hi Rahul, any idea?

 

[ashishkumar.gupta]

I guess input topology is missing in Fluid flow region for System coupling FSI. But idk how to correct it?