How is time-averaged data (velocity magnitude for example) extracted from a STAR-CD LES simulation?

Before starting the simultion in the LES menu there is an option for outputing statistically averaged properties beyond a specified time-step. However, when I view the (steady-state) results they seem to be for the final time-step and not a time-average of a range of time-steps.

The only way, so far, that I have managed to view any time-averged data is by creating a *.pstt file which outputs results for a range of specified time-steps, exporting the results to EnSight and doing the time-averaging there. Note1: The *.pstt file however is very large. Note2: if it is a large number of time-steps EnSight's TempMean command and EnSight will crash.

There must be an easier way of doing this!!! I thought star was supposed to do the time-averaging after each-time step automatically.

Hope someone can help...this is driving me nuts!

Andy.

Once averaging has begun, your pst file should have average quantities on it as well as instantaneous, e.g. "Av. Velocity U-Comp." (getc sumn).

Yes, I agree, but, how do you get, for instance, the mgnitude of the Av. Velocity? And, why is it that when I export my results to EnSight the Av. Velocity U-, V- and W-components are not referenced in the Ensight case file but, the Av. Pressure, for example, is referenced in the Ensight case file?

Cheers

Andy.

have a look at oper getc, oper putc... just make sure you backup the original pst file!!... i think if you put averaged components into the instantaneous ones in the pst file you will be able to plot av,vel.mag....