A general spheroidal coordinate separation-of-variables solution is developed for the determination of the acoustic pressure distribution near the surface of a rigid spheroid for a monofrequency incident acoustic field of arbitrary character. Calculations are presented, for both the prolate and oblate geometries, demonstrating the effects of incident field orientation and character (plane-wave, spherical wave, cylindrical wave, and focused beam) on the resultant acoustic pressure distribution.
Barton, John P.; Wolff, Nicholas L.; Zhang, Haifeng; and Tarawneh, Constantine, "Near-field calculations for a rigid spheroid with an arbitrary incident acoustic field" (2003). Mechanical Engineering Faculty Publications and Presentations. 24.
The Journal of the Acoustical Society of America