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Velocity gradients from previous timesteps

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Old   March 4, 2010, 08:04
Default Velocity gradients from previous timesteps
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Ed Kay
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I would like to make a plot of time averaged vorticity in an unsteady simulation I am running. Since vorticity is not one of the quantities avaiable for producing time averaged statistics I will have to make a UDF for this.

Thus I need to access the velocity gradients from previous timesteps in my UDF but cannot see any macros which allow this. Any ideas?

Any help would be much appreciated.

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previous timestep, time averaged, velocity gradient, vorticity

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