Ansys System Coupling failure during FSI simulation?

17 February 2022 1 959 Report

"DP(0) A solver failure occured during the run in the Fluid Flow(Fluent) system."

Does anyone know about the solution to this problem? I have been sitting 3 months trying to solve this.What could be the possible causes?

It's a Transient Fluent+Transient Structural Simulation.

Note:I have run and got expected results with running just the fluent part(main part).

Thanks in advance.

Gopinath N K

Ahmed Abrar If it is a two-way FSI, the possible reason is fluid mesh is deforming more due to large deformations from the solid side. One standard answer is to reduce the time step size in fluent and improve the mesh quality. Also, have a relook at the re-meshing/dynamic mesh settings in fluent.

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