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-   -   User-defined Time Step (https://www.cfd-online.com/Forums/fluent-udf/85893-user-defined-time-step.html)

saclu March 9, 2011 05:21

User-defined Time Step
 
Hi all,
I would like to define a user-defined time step with the DELTAT UDF
The UDF is defined this way:
DELTAT(name, d)

Domain *d: pointer to the domain over with the time stepping control fonction is to be applied.

I need my time step to be depend on the angular velocity of my body Cg which is in rotation. I can't get the angular velocity with the DT_OMEGA_CG(dt) beacuse dt isn't declared in DELTAT so I don't know how to do.
Does anyone would have an idea?
Thanks!


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