Face-to-face—Pipe Hanger Tutorial
Face to Face conduction allows us to quickly mesh the individual parts in a CAD program and then easily connect them thermally without further mesh editing. The purpose of this tutorial is to understand how Face to Face conduction is setup and executed. Face to Face conduction allows parts with disconnected meshes to be thermally connected and supports contact resistance. In this example, we are simulating a pipe hanger clamped around a duct carrying hot gas inside. Face to Face conduction will be setup to enable conduction from the pipe to the pipe clamp, and once again from the clamp to the hanger strap.

Solids—Heatsink Tutorial
Some objects for thermal analysis can be represented using planar mesh geometry, such as a single plane representing a flat wall or one side of a hollow box. The "thickness" of the planar geometry can be parametrically input. However, other objects with large interior solid volumes and low relative surface areas are better represented by an exterior boundary mesh "filled" with solid materials. The latter approach is supported using the Boundary Element Method and is the focus of this tutorial.