Acoustic scattering from an infinite cylinder of small radius coated by a penetrable one
(EN)
Roumeliotis, JA
(EN)
Kakogiannos, NB
(EN)
The scattering of a plane acoustic wave normal to the axis of an infinite impenetrable or penetrable cylinder of an acoustically small radius, coated by a penetrable cylinder, is treated in this work. The problem is solved by the method of separation of variables with the use of translational addition theorems for cylindrical wave functions. Analytical expressions are found for the scattered pressure field and the various scattering cross sections, when the radius of the inner cylinder is acoustically small. Numerical results are given for various values of the parameters and for both an impenetrable or penetrable inner cylinder.
(EN)
