[Huo]

Dear friends,

I have a very robust design of a contra-rotating fan, now I need to validate this design and find the problems. However, after i generated the mesh in turbogrid and set up all the parameters in pre-CFX, I always got the problem "floating point exception: overflow". I did a lot of changes, such as improving the mesh, adding the good initial conditions, decreasing the timestep and changing the turbulence model to SST. However, I still can not get proper convergent results. Can anybody help me to check the case? Here I can not attach the .def and .cfx files since it is too large. If there is sombody who can help me, I will send you those files by email.

Thanks very much!