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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › ICFD Mesh error: Surface Collapse not possible to locate › Reply To: ICFD Mesh error: Surface Collapse not possible to locate

August 14, 2024 at 6:51 pm
arnau994
Subscriber

Hello Reno,

Thank you very much for your detailed response and the feedback the developer will provide.

I have attached below one of the surface mesh iterations, where I tried a coarser mesh on the wing (FSI interaction surface) and a finer mesh on the fluid domain to balance both element sizes. At the moment I don't have any boundary layers, adaptive meshing or any other kind of features (I think that the boundary layer is volume-meshed automatically?). I have also tried to attach the .k file with only the mesh in case it could be helpful, but I have been unable to do so.

Surface Mesh Layout

To be honest, I didn't try to deep-refine the mesh, as I understood that a higher element count would be detrimental for the solver. I will try it and keep you updated. Same for the volume mesh workaround.

Thank you for your time. I really look forward to hear from the developer.

Arnau