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Iterative solutions for finite-size absorbers

: Mechel, F.P.

Journal of Sound and Vibration 134 (1989), No.3, pp.489-506
ISSN: 0022-460X
Journal Article
Fraunhofer IBP ()
finite-size absorber; iteration; rectangular absorber

The method of iterations is applied to the Helmholtz integral equation for the sound field in front of sound absorbers with finite size and rectangular as well as circular shapes. Angular distributions of the scattered sound field are computed. Approximate formulas for the absorption cross-section are derived by using the extinction theorem. Numerical examples are discussed.