In:
The Journal of the Acoustical Society of America, Acoustical Society of America (ASA), Vol. 74, No. 3 ( 1983-09-01), p. 1044-1047
Abstract:
In the case of boundary value problems such as the sound scattering from a sphere placed in the nearfield of a plane piston source, it is sometimes essential to express the velocity potentials in terms of the orthogonal expansion. It is demonstrated in the present work that the Rayleigh surface integral, giving the velocity potential for a plane piston source surrounded by an infinite rigid flange, reduces to a rigorous expansion of the simplest form for a circular piston as series of spherical surface harmonics. The resulting equation is valid for any field points even on the piston surface. Sample calculations made with a microcomputer are presented with three-dimensional and contour plots.
Type of Medium:
Online Resource
ISSN:
0001-4966
,
1520-8524
Language:
English
Publisher:
Acoustical Society of America (ASA)
Publication Date:
1983
detail.hit.zdb_id:
1461063-2
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