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An experimental investigation of pure tone generation by vortex shedding in a duct

Nomoto, H. and Culick, F. E. C. (1982) An experimental investigation of pure tone generation by vortex shedding in a duct. Journal of Sound and Vibration , 84 (2). pp. 247-252. ISSN 0022-460X. http://resolver.caltech.edu/CaltechAUTHORS:20101209-093924977

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Abstract

An experimental investigation has been carried out for acoustic oscillations sustained by flow through a duct containing two baffles. Pure acoustic tones corresponding to longitudinal resonant modes of the duct are produced when certain flow and geometrical conditions are satisfied. The conditions are such as to ensure close coincidence between the frequency of vortex shedding from the forward baffle, and a natural frequency of the duct. Flow visualization has shown that under these conditions a stable vortex structure exists between the baffles, containing at all times an integral number of vortices.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/S0022-460X(82)80007-2 DOIUNSPECIFIED
Additional Information:© 1982 Academic Press Inc. (London) Limited. Received 16 September 1981, and in revised form 16 January 1982. Available online 13 December 2006. The authors have benefitted greatly from conversations with Professors T. Kubota and A. Roshko. This work was supported by the National Aeronautics and Space Administration under the Jet Propulsion Laboratory Contract NAS 7-100.
Group:Guggenheim Jet Propulsion Center
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NASANAS 7-100
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Guggenheim Jet Propulsion CenterUNSPECIFIED
Record Number:CaltechAUTHORS:20101209-093924977
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20101209-093924977
Official Citation:An experimental investigation of pure tone generation by vortex shedding in a duct Original Research Article Pages 247-252 H. Nomoto, F.E.C. Culick
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:21257
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:10 Dec 2010 18:06
Last Modified:26 Dec 2012 12:44

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