Asymptotic behavior in the numerical propagation of finite-amplitude jet noise

Kent L. Gee, Victor W. Sparrow

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

One issue of interest pertaining to the development of a numerical model applicable to the nonlinear propagation of jet noise is the behavior of spectral predictions at large distances. In this study, a recorded noise waveform from a military jet aircraft is numerically propagated via a hybrid time-frequency domain solution to the generalized Burgers equation that incorporates spherical spreading and atmospheric absorption and dispersion. Numerical results show that the spatial rate of change of the difference between the nonlinearly- and linearly-predicted power spectra appears to approach constant nonzero behavior at high frequencies. This asymptotic relationship is analogous to that predicted by analytical theory for initially-sinusoidal plane and spherical waves.

Original languageEnglish (US)
Title of host publicationINNOVATIONS IN NONLINEAR ACOUSTICS - ISNA 17
Subtitle of host publication17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum
Pages564-567
Number of pages4
DOIs
StatePublished - 2006
EventINNOVATIONS IN NONLINEAR ACOUSTICS - ISNA17: 17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum - State College, PA, United States
Duration: Jul 18 2005Jul 22 2005

Publication series

NameAIP Conference Proceedings
Volume838
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherINNOVATIONS IN NONLINEAR ACOUSTICS - ISNA17: 17th International Symposium on Nonlinear Acoustics including the International Sonic Boom Forum
Country/TerritoryUnited States
CityState College, PA
Period7/18/057/22/05

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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