I downloaded the FSI example from website.
Fluid-Structure Interaction
Model ID: 361
www.comsol.com/model/fluid-structure-interaction-361
It is a classic problem.
It looked good. But when I only changed the inlet velocity from u_mean to U.
It returned Warning: Inverted mesh element near coordinates and failed.
After I tried different velocity number, from 1 m/s to 0.0001 m/s, it finally converged.
But 0.0001 m/s was meaningless to me.
Does anyone knows what happened in this problem?
Fluid-Structure Interaction
Model ID: 361
www.comsol.com/model/fluid-structure-interaction-361
It is a classic problem.
It looked good. But when I only changed the inlet velocity from u_mean to U.
It returned Warning: Inverted mesh element near coordinates and failed.
After I tried different velocity number, from 1 m/s to 0.0001 m/s, it finally converged.
But 0.0001 m/s was meaningless to me.
Does anyone knows what happened in this problem?