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On the use of co-ordinate stretching in the numeral computation of high frequency scatteringThe scattering of the sound of a jet engine by an airplane fuselage is modeled by solving the axially symmetric Helmholtz equation exterior to a long thin ellipsoid. The integral equation method based on the single layer potential formulation is used. A family of coordinate systems on the body is introduced and an algorithm is presented to determine the optimal coordinate system. Numerical results verify that the optimal choice enables the solution to be computed with a grid that is coarse relative to the wavelength.
Document ID
19790035180
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bayliss, A.
Date Acquired
August 9, 2013
Publication Date
October 22, 1978
Publication Information
Publication: Journal of Sound and Vibration
Volume: 60
Subject Category
Acoustics
Accession Number
79A19193
Funding Number(s)
CONTRACT_GRANT: NAS1-14101
Distribution Limits
Public
Copyright
Other

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