[altomos]

Dear CFX experts and everyone.

I finally end up helpless with my tidal turbine simulation though I've read, did and searched everywhere. So, I do hope some advices from your experience:

The problem is I used actuator disk method to simulate an one-meter-diameter turbine. It is sinked in a flow field contains both water and air (free surface model).

After many runs, I always got these results most:

1. No result due to Fatal overflow.

2. Result comes but: no change in water level near turbine position, no change in stream line direction (looks like they just go straightly from the turbine to the outlet)... Or very messy flow (looks like nothing!)

I tried with both tetra and hexa mesh, I hardly made the "floating disk" inside the flow field with no error. But until now, no desire result or my results are not correct with the real physical phenomenon.

So please give advices and help me out, here I attach my cfx file with. I do appreciate any help from you. Thank you very much.
http://www.mediafire.com/?thazui4xm4vi6li