ACOUSTIC RADIATION FROM SLENDER BODIES

A general approach is proposed to compute the acoustic field radiated by axisymmetric slender bodies at medium (Ka congruent-to 1) and low ( Ka much less than 1) frequencies. A multiple-scales technique is devel oped to determine the sound pressure in the near field. The far field solution is built up as a continuous distribution of sectorial spheric al harmonics and their densities are deduced by matching with the near field solution. Some applications are presented to support the analyt ical results.