July 29, 2024 at 9:03 am
CFD_Friend
Ansys Employee

Hi Luna,

  • Velocity: This option shows the velocity of the fluid relative to the rotating frame of reference. In domains that are in the rotating frame (such as the region around the rotor), this velocity will account for the motion of the rotor. It essentially shows how the fluid is moving as seen from a viewpoint that is rotating with the rotor.

  • Velocity in Stationary Frame: This option shows the velocity of the fluid relative to a stationary frame of reference. This is the absolute velocity of the fluid, which includes both the motion of the rotor and the fluid's movement due to other factors. It gives a view as if you were standing still outside the rotating system, observing the overall flow.