Dear Sir or Madam, I am researching on the squeeze flow computation in mechanical heart valve. Someone has used Fidap and Cfd-ace to deal this fluid-structure interaction problem. I want to know the advantages and disadvantages for these two codes in this problem. And someone who has other good suggestions, would you kindly reply me? Thanks.

The problem you pose can be be pretty complex. The flow is a non-newtonian fluid and I am pretty sure the material of the valve is nonlinear. ANSYS/Multiphysics has some new enhancements to their FSI capbilities. It combines all of the non-linear capabilites of ANSYS with the CFD solvers (Flotran). This all happens in the same GUI, fully coupled.