Description:
<jats:p>The interaction of waves traveling in an acoustic medium with an elastic obstacle (or vice versa) is studied by a formulation which has been useful in previous acoustic and elastic wave scattering problems. This formulation is based on an integral equation representation of wave problems and has the advantage of involving only boundary (i.e., interface) values of the unknowns, thus reducing the dimensionality of the problem. A simple example of plane wave scattering is included as an illustration for both time harmonic and transient cases as well as a spherical radiation problem to indicate the use of the procedure in a curvilinear geometry. Emphasis is on the method of approach and no new results are obtained.</jats:p>