Measurements of energy exchange between acoustic fields and non-uniform steady flow fields
- Creators
- Magiawala, K. R.
- Culick, F. E. C.
Abstract
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.
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.Additional details
- Eprint ID
- 21261
- Resolver ID
- CaltechAUTHORS:20101209-102019799
- Caltech
- NASA
- NAS7-100
- JPL
- Air Force Rocket Propulsion Laboratory
- Created
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2010-12-10Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Guggenheim Jet Propulsion Center, GALCIT
- Other Numbering System Name
- Guggenheim Jet Propulsion Center