[salachnaj]

Hi. I am working now on 3D FSI case, and I get a strange results of a structure deformation

First I started my case after 2,3s from the latest time. Here, I report x displacement(violet line) and ydispl (orange line) against experiment (dotted). I noticed strange shift in displacement of a structure after 2,3s simulation



Here, I restarted my case after around 1,5s and I also see strange shift of displacement


I see the similar problem was reported here
https://sciendo.com/pdf/10.2478/caim-2021-0002

'The restart introduces a larger error at the FSI interface with respect to the error of an uninterrupted simulation.'

Have any user of the solids4Foam faced similar issue in his simulations? Please share your experiences.