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054 - From jet noise to rocket noise
McInerny S.
Abstract
There are key differences between rocket and jet exhaust aerodynamics and noise radiation characteristics. While there are plausible explanations for these differences, there is little quantitative data to rely on for proof or for the development of a detailed parametric model such as the one given in SAE ARP 876D for jets. In this paper, differences and similarities between the noise radiated by jets and rockets are presented and illustrated using full scale rocket and jet noise data. Specifically, the distribution of sources in the plume, the acoustic efficiency, directivity, and sound power spectral distribution are compared and contrasted for supersonic jets, afterburning jets, and rocket exhausts.
Citation
McInerny S.: From jet noise to rocket noise , CD-ROM Proceedings of the Thirtheenth International Congress on Sound and Vibration (ICSV13), July 2-6, 2006, Vienna, Austria, Eds.: Eberhardsteiner, J.; Mang, H.A.; Waubke, H., Publisher: Vienna University of Technology, Austria, ISBN: 3-9501554-5-7