11.1 Introduction

In sliding meshes, the relative motion of stationary and rotating components in a rotating machine will give rise to transient interactions. Most often, the transient solution that is sought in a sliding mesh simulation is time-periodic. That is, the transient solution repeats with a period related to the speeds of the moving domains. However, you can model other types of transients, including translating sliding mesh zones.

The dynamic mesh model uses the ANSYS FLUENT solver to move boundaries and/or objects, and to adjust the mesh accordingly. The dynamic mesh model is used when boundaries move rigidly (linear or rotating) with respect to each other.