2D ship motion in cfx with sliding mesh: free surface displace with sliding interface
 

hi
i simulated 2D ship motion in cfx with sliding mesh.
but in the result free surface is like attachment.
any body could help me to fix this free surface
thanks

Repeat the simulation with tighter convergence and smaller time steps.

hi
thanks
i repeat simulation but the result is like before. do you have any idea?

You need to improve the accuracy of the free surface model you are using. Exactly what is the problem is impossible to to tell base on the vague information so far.

http://www.cfd-online.com/Wiki/Ansys..._inaccurate.3F