Abstract
In Part I [J. Acoust. Soc. Am. 76, 599–607 (1984)] it was suggested that an effective method for calculating the scattering of a wave field by a target of complex shape in the intermediate wavelength regime is the solution of the Helmholtz integral equation for the wave field on the surface of the target. The method was tested by calculating the scattering of acoustic waves by a rigid spheroid. In this paper we present the results of further test calculations employing the Helmholtz integral equation method to calculate the scattering of acoustic waves by fluid spheroids. Two alternative formulations of the method are tested, and they both give satisfactory results for spherical targets. However, the rate of convergence of one of the methods deteriorates rapidly with increasing nonsphericity while the rate of convergence of the other does not.
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