We’re putting the final touches on our new badges platform. Badge issuance remains temporarily paused, but all completions are being recorded and will be fulfilled once the platform is live. Thank you for your patience.

Ansys Learning Forum › Forums › Installation and Licensing › Ansys Products › 2 way coupled FSI for ball bearing › Reply To: 2 way coupled FSI for ball bearing

October 21, 2024 at 6:58 am
Rahul
Ansys Employee

You can create a plane through the point of contact and investigate the mesh in that thin region.

To avoid negative volume, try defining the contact offset in Mechanical between those surfaces. You can find more information about it in Geometric Modification.

Negative volume generation issue could be due to several reasons:

1. First, check your mesh and ensure its quality is good. If not, please consider improving the mesh in the region where mesh motion is expected.

2. Consider reducing the time step. (change time in system coupling).

3. Check if unreasonable forces were received by Fluent leading to negative mesh in Fluent (Check BC in both participants and use data transfer ramping)