Free Surface Position

Jennifer

Hi

I wonder if anyone can help me. I am trying to run a simulation based on a torpedo floating on the surface of the sea. I am not planning on implemeting waves to the calculation yet but it is a thought for the future. My problem is that I cannot seem to get the free surface in the correct position. I have set the CEL Expressions and even run a number of simulations (rough ones) to try and get a picture of where the free surface lies but it is not in the right position (in the middle of the torpedo). Also If anyone can tell me how to upload a picture to a post I can post a couple of pictures to explain what i am talking about more clearly.

Can anyone help with this, How do I move the free surface into the correct position and what boundary condition should I use for the side of the model, i thought opening would be best but I dont know the values to use. I am relatively new to CFX and have not been using it for long.

Many thanks

Jen