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Perturbation/Disturbance , Please Guide

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Old   June 24, 2004, 23:49
Default Perturbation/Disturbance , Please Guide
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In my simulation, I want to add a perturbation to the inlet velocity profile to see its influence on the flow.

I am use a K-E model, I wonder if this perturbation is allowed to be added to the K-E model?

Because K-E model takes the average time value, I was suggested that the perturbation would be eased off by the model and it is not proper to add a perturbation to a K-E model. Is this true?

Please Guide. Thank you.
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