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-   -   Strouhal number and multiple freq (http://www.cfd-online.com/Forums/main/96077-strouhal-number-multiple-freq.html)

lakeat January 11, 2012 16:01

Strouhal number and multiple freq
 
I have a question,

As I calculating the flow around a square cylinder, there are inevitably multi-frequencies.

So how did you guys calculate the Strouhal number then?

I saw the definition of St as against vortex shedding frequency, but in a relatively high Re, there will be more than one vortex shedding frequency, how to judge which is the biggest, if there are two biggest...

Will you do the average?


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