Nonlinear propagation of high-frequency energy from blast waves

Alexandra Loubeau, Victor Ward Sparrow

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

Abstract

High-frequency energy is generated from nonlinear propagation of finite-amplitude shock waves created by explosions. Energy at these high frequencies may be harmful to bats because their auditory systems use high-frequency information. In April 2005, measurements of blast waves were performed by the U.S. Army. Spectrographic analysis of the waveforms confirms that the high-frequency energy is concentrated near the shocks. The data from these recent experiments serve as a benchmark for analysis of computational model predictions. Using a hybrid time-frequency domain Anderson-type algorithm, the extended generalized Burgers equation is solved for the propagation of a blast wave. Computer code predictions are compared to the benchmark experimental data.

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
Pages532-535
Number of pages4
Volume838
DOIs
StatePublished - Dec 1 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

Other

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

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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