Khashayar Aavani - Aerospace Research Institute-Ministry of Science, Research, and Technology, Tehran

In this paper, the mechanism of sound generation by unsteady, subsonic flows in the presence of solid boundaries are investigated. For this purpose an alternative integral representation for the radiated pressure field is applied which is different from the generally used integral methods. Also, physical treatment of low Mach number vortex-surface interaction noise in terms of the compact Green's function is presented. Finally, for example, the acoustic pressure of sound produced by vortex motion near a half-plane such as infinite mid-wing is calculated.

Vortex-Sound-Interaction-Low Mach Flow-Cylindrical Body