Development of an Improved Kirchhoff Method for Jet Aeroacoustics

Research in the development of an Improved Kirchhoff method is described. The Kirchhoff method is a means of evaluating radiated sound from flow acoustic quantities on a computational surface. The linear, homogeneous wave equation is assumed to be valid in the propagation region, outside this surfac...

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Bibliographic Details
Published in:AIAA journal 1998-05, Vol.36 (5), p.783-790
Main Authors: Pilon, Anthony R, Lyrintzis, Anastasios S
Format: Article
Language:English
Subjects:
Acoustics
Aeroacoustics and atmospheric sound
Aeroacoustics, atmospheric sound
Aerodynamics
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Mathematical models
Physics
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Summary:Research in the development of an Improved Kirchhoff method is described. The Kirchhoff method is a means of evaluating radiated sound from flow acoustic quantities on a computational surface. The linear, homogeneous wave equation is assumed to be valid in the propagation region, outside this surface (the Kirchhoff surface). The surface quantities are generally obtained from a computational fluid dynamics (CFD) calculation of the acoustic near field.
ISSN:0001-1452
1533-385X
DOI:10.2514/2.437