Non-linear moving boundary

Chien

I'm wondering if there's a guideline to setup non-linear moving boundary using mesh motion in CFX 5.7. The tutorial 20 in the CFX documentation showed 1-D movement of the ball-valve. However a 2-D boundary movement is required for my research. Something similar to modelling the flexible wall that is described in: http://www.cfd-online.com/Forum/main...cgi?read=22165

At the moment, I am specifying the X, Y, Z component of the boundary of interest in the 'mesh motion' option. My code provides the absolute location of the vertex nodes and cell centers of that boundary through User CEL function.

I guess the question would be : Does anyone see problems in the way i'm approaching this? or Is there a better way of doing it?

Any comments or feedbacks are appreciated.