creating two diffrent parts at workbench
 

I am working with fluent 14 workbench and I am trying to build a model of 2 boxes. when I try to put the mesh it's behave like one part and not 2 part. how can I solve this problem?

thanks for the help:confused:

-cut the boxes with option "frozen" in DM
-create an assembly from both parts --> this will make the meshes to match at the interface

Make two parts in design modeller.
Select the box-1 volumes and right click- create new part
Box-2-select all volumes-right click -new part
by this it treat as two different bodies

assembly
 

how to create an assembly from both parts ?

thank for the help

if you want to give interface between two mating surfaces
:confused:If you are working as assmebly mesh ( like cut cell) it treat as as assembly body not single body

yes
 

but I working as assembly mesh?