system coupling problem
I've been working on a left anterior descending artery model on Ansys 19.2 and I'm trying to run a two ways FSI modeling. I've set up transient structural and Fluent. I attempted to run system coupling but the solution does not go forward more than third iteration even if i change set up, method and mesh.I attempted to solve fluent and structural separately and both were solved without any errors but when they couple it does not solve.
Please let me know of suggestions that could fix this problem. Thank you