Diffraction of acoustic waves from a point source over an impedance wedge

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Abstract

Contrary to the problem of scattering of electromagnetic
waves from a Hertz dipole located over an impedance
wedge, the corresponding acoustic problem is explicitly
solvable (i.e. by quadrature). In this work we study diffraction
of a spherical acoustic wave due to a point source, by an
impedance wedge. In the exterior of the wedge the acoustic
pressure satisfies the stationary wave (Helmholtz) equation
and classical impedance boundary conditions on two faces
of the wedge, as well as Meixner’s condition at the edge and
the radiation conditions at infinity. Solution of the boundary
value problem is represented by a Weyl type integral
and its asymptotic behavior is discussed. On this way, we
derive various components in the far field interpreting them
accordingly and discussing their physical meaning.
Original languageEnglish
Title of host publicationThe URSI GASS 2020. Proceedings
PagesB09-01
Number of pages4
Publication statusPublished - 2020
EventXXXIIIrd URSI General Sssembly and Scientific Symposium - Rome
Duration: 29 Aug 20205 Sep 2020

Conference

ConferenceXXXIIIrd URSI General Sssembly and Scientific Symposium
Abbreviated titleURSI GASS 2020
CountryItaly
CityRome
Period29/08/205/09/20

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