August 21, 2023 at 6:39 am
C N
Ansys Employee

Hello Javat,

I recommend you to calculate the angular velocity with the help of rotor radius and linear velocity which can be calculated with from the revolutions per minute of the impeller which is rotor. Then provide accelration due to gravity with that try to specify the angukar accleration and provide moment of inertia and check . This should make your component to rotate. 

Workaround

I recommend you to use the turbo workflow of the fluent which is the best recommended practice for the turbomachiney

Chapter 11: Turbomachinery Setup and Analysis Using the Turbo Workflow (ansys.com)

In this user guide link there is a clear example case which is explained in detailed from set up to post processing .I suggest you to kindly follow it insted of DOF method. This should solve your problem.

Thanks,

Chaitanya natraj