{"id":405421,"date":"2025-01-17T13:32:01","date_gmt":"2025-01-17T13:32:01","guid":{"rendered":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fsi-simulation-of-hyperelastic-flap-with-overset-mesh\/"},"modified":"2025-01-17T13:32:01","modified_gmt":"2025-01-17T13:32:01","slug":"fsi-simulation-of-hyperelastic-flap-with-overset-mesh","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fsi-simulation-of-hyperelastic-flap-with-overset-mesh\/","title":{"rendered":"FSI simulation of hyperelastic flap with overset mesh"},"content":{"rendered":"

<p>Hi,<\/p><p>I am trying to use overset meshing instead of Smoothing and Remeshing in a 2-way-coupled FSI simulation. I am trying to recreate this case: 2-way FSI with overset example (hyperelastic flap) | Ansys Knowledge<\/a>. But with one flap only at first.<\/p><p>When I create the hyperelastic flap case with Smoothing and Remeshing everything works (except the remeshing, but that’s not my question). Forces and displacement are transfered between Fluent and Mechanical.<\/p><p>For the overset meshing case I replaced the mesh of the original Fluent instance with a background mesh and added the overset mesh of the flap to the setup cell. I created the overset mesh in a seperate Fluent instance.<\/p><p>Setting up the overset mesh works fine. Now I set dynamic meshing zones. A “system coupling” for the wall of the flap (which is defined in the overset mesh) and “deforming” for the symmetry faces of the overset mesh and the volume mesh of the overset mesh.<\/p><p>I can start the system coupling case an run the simulation without any errors, but when the simulation completes there is no displacement in my Fluent geometry, while the Mechanical geometry shows deformation based on the fluid forces. So eventhough I set “data transfers” in both dircetions, somehow only the forces are beeing transferred from Fluent to Mechanical, but the displacement isn’t transferred back to mechanical (in the solution output of the mechanical system a displacement is calculated) <\/p><p><\/p><p>Does anyone have a solution for this? <\/p><p>Thanks in advance<\/p><\/p>\n","protected":false},"template":"","class_list":["post-405421","topic","type-topic","status-publish","hentry","topic-tag-2-way-fsi","topic-tag-overset-mesh","topic-tag-system-coupling"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t