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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