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Shredding frequency vs Time step size

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Old   May 14, 2006, 04:48
Default Shredding frequency vs Time step size
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Leo
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Hello, All! I hope you excuse my English.

I modelling flow over a cylinder.For verification of results, I must find shredding frequency (Strouhal). But this value is different for different Time step sizes. (greater time step size gives smaller value of frequency). Is it normal?
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