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Measurements of energy exchange between acoustic fields and non-uniform steady flow fields

Magiawala, K. R. and Culick, F. E. C. (1981) Measurements of energy exchange between acoustic fields and non-uniform steady flow fields. Journal of Sound and Vibration, 75 (4). pp. 503-517. ISSN 0022-460X. doi:10.1016/0022-460X(81)90438-7.

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This paper describes an experimental investigation of interactions between acoustic waves and a non-uniform steady flow field. Data have been obtained for a resonance tube having a vent at the center in the lateral boundary, an average flow being introduced at the ends. Experiments have been done for both circular and slot vents, over ranges of both frequency and Mach number. According to the one-dimensional linear stability analysis, the interactions between the longitudinal acoustic field and the mean flow in the vicinity of the vent cause a net transfer of acoustic energy from the average flow to the acoustic field. This result has been verified by the experiments reported here. The gain of energy measured is less than that deduced from a one-dimensional analysis.

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Additional Information:© 1981 Academic Press Inc. (London) Limited. Received 26 February 1979, and in revised form 26 September 1980. Available online 25 July 2003. This work was supported by the California Institute of Technology, the National Aeronautics and Space Administration and Jet Propulsion Laboratory, contract No. NAS 7-100; and by the Air Force Rocket Propulsion Laboratory.
Group:Guggenheim Jet Propulsion Center, GALCIT
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Air Force Rocket Propulsion LaboratoryUNSPECIFIED
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Guggenheim Jet Propulsion CenterUNSPECIFIED
Issue or Number:4
Record Number:CaltechAUTHORS:20101209-102019799
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Official Citation:Measurements of energy exchange between acoustic fields and non-uniform steady flow fields Original Research Article Pages 503-517 K.R. Magiawala, F.E.C. Culick
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21261
Deposited By: Ruth Sustaita
Deposited On:10 Dec 2010 17:54
Last Modified:09 Nov 2021 00:07

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