Baffle Element Recognition

Baffles are used to model very thin walls, for example sheet metal parts. In the numerical surface mesh model, baffles are represented by shell elements, which have fluid volume on both sides.

Define a part as a baffle in the following ways:

Select a part and toggle the Baffle option on in the Property Editor.
Select a part, right-click, and activate the Baffle option in the context menu.