Author： Dittrich W.
Publisher： S. Hirzel Verlag
ISSN： 1610-1928
Source： Acta Acustica united with Acustica, Vol.29, Iss.2, 1973-08, pp. : 79-85
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Abstract
LIGHTHILL used the pressure integral over the surface of circulating bodies and with this formulation as a basis, set-up the beam model of the oscillating sphere and through a modified aerodynamic parameter also that of the oscillating cylinder. Three models are developed. Under simplified assumptions the estimated correlations between the radiation performance and the circulating velocity can be derived. This performance can be increased from the fifth to the eighth power of the circulating velocity.
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