Computation of acoustic scattering from a moving rigid surface

Autor:	M. K. Myers, J. S. Hausmann
Rok vydání:	1992
Předmět:	Classical mechanics Acoustics and Ultrasonics Arts and Humanities (miscellaneous) Scattering Harmonic (mathematics) Boundary value problem Galerkin method Rigid body Integral equation Boundary element method Finite element method Mathematics
Zdroj:	The Journal of the Acoustical Society of America. 91:2594-2605
ISSN:	0001-4966
DOI:	10.1121/1.402996
Popis:	Application of the Kirchhoff formula for subsonically moving surfaces to scattering of sound from a moving rigid body is described. The formulation leads to a singular integral equation that yields surface values of the field. The integral equation is solved using a boundary element technique in conjunction with the Galerkin method. Several checks on the accuracy and validity of the scheme are discussed. Numerical results are obtained for scattering of sound from a harmonic point source co‐moving with a thin, winglike body.
Databáze:	OpenAIRE
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