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Overhang Cavity Acoustics : Helmholtz Frequency Calculation

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Old   May 18, 2009, 07:40
Default Overhang Cavity Acoustics : Helmholtz Frequency Calculation
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I am working on CFD simulation of overhang cavity acoustics, a problem statement given in NASA's 3rd CAA workshop. I calculated vortex-shedding frequency from well known Rossister's formula.
I want to calculate Helmholtz frequency of the overhang cavity. Can anyone suggest me about the formulation for this.

Thanks and Regards
Ashish Singh
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