Abstract
In order to clarify the mechanism of aerodynamic sound generation, aerodynamic sound source was measured with a dynamic PIV system. The acoustic analysis that used the time series data of the vortices field and the acoustic analysis that used Howe's vortex theory using by a compact Green's function were carried out. The estimated sound level is in good agreement with experimental measurement data. Although the scattering effect was small at the formation region of Karman vortex, a strong sound source was observed. It revealed that the dynamic PIV is useful tool for evaluation of aerodynamic sound source.
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