This paper reports the first analytic study of resonant scattering of acoustic waves by ellipsoid air bubbles in liquids. Based on the Kirchhoff integral theorem, the function of sound scattering is derived in a simple closed form and is shown to bear analogy with the well-known expression for sound scattering from spherical air bubbles. The resonance frequency and the quality factor Q are also derived. For the special cases such as spherical and prolate spheroid bubbles, the results reduce to the previously known results. (C) 1997 Acoustical Society of America.
