[zhigao]

Hi,I am doing a two way FSI simulation on capillary model. The capillary is pressured and squeezed and pushed the inside blood flow to two ends and form a flow. I can perform it under small deformations but it goes wrong when i apply bigger pressure on it. it starts to report negative volume detected.
please see attachment for details. thanks!

well, really small deformation works and larger one doesn't, i suppose that dynamic mesh is the key to the problem. i set inner surface as system coupling dynamic mesh.