Comsol-moving mesh

shapoor

Hi every one

I want to model a transient heat transfer with time dependent Dirichlet boundary condition and
moving mesh. but I am failed. Is there any suggestion to perform it?
I use the Comsol 4.2, and my problem is quiet similar to the "A Transient Analysis of Freeze-drying - 3924" model from comsol 3.5a model gallery, but I do not know how I can do it in the Comsol 4.2.
any help would be gratefully appreciated.

Thanks