Shell Element in WorkBench
 

Hi,
Using Ansys Work Bench I have modelled Block Wall with layers of insulation, totally the geometry has 5 volumes (5 solid bodies/ parts). In my case, the 1st volume and the last volume(volume 5) will be exposed to temperature and since I am planning to apply some fluid property on the exposed faces of volume 1 and 5, I want those faces to be defined as shell element. where I am not getting how to define.

Any Help in this regard would be appreciated

Advance Thanks