CAPE Forum

Ansys => Fluent => Topic started by: william on February 04, 2012, 08:21:11 PM

Title: Velocity formulation- absolute vs. relative
Post by: william on February 04, 2012, 08:21:11 PM
Two formulations exist for a rotating reference frame. In the Multiple Reference Frame model, the absolute velocity formulation is preferred in applications where the flow in most of the domain is not rotating (e.g., a fan in a large room). The relative velocity formulation is appropriate when most of the fluid in the domain is rotating (e.g., a large impeller in a mixing tank).