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Inviscid stability of bubbly jets

d'Auria, Fabrizio and d'Agostino, Luca and Brennen, Christopher E. (1995) Inviscid stability of bubbly jets. In: 31st AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, July 10-12, 1995, San Diego, CA.

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This paper investigates the effects of bubble dynamics on the stability of bubbly and cavitating jets of low void fraction. The equations of motion for the bubbly mixture are linearized for small perturbations and the parallel flow assumption is used to obtain a modified Rayleigh equation governing the inviscid stability of a two-dimensional jet. Inertial effects associated with the bubble response and energy dissipation due to the viscosity of the liquid, the heat transfer between the two phases, and the liquid compressibility are included. Numerical solutions of the eigenvalue problem for the modified Rayleigh equation of a Bickley jet are obtained by a multiple shooting method. Depending on the jet velocity, the void fraction, and the ambient pressure, the presence of air bubbles can induce significant departures from the classical results for a single phase fluid.

Item Type:Conference or Workshop Item (Paper)
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Additional Information:© 1995 AIAA. The authors gratefully acknowledge the support of the Office of Naval Research under grant number N-00014-91-K-1295 and of the Italian Ministry of University and Scientific Research.
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Office of Naval Research (ONR)N-00014-91-K-1295
Italian Ministry of University and Scientific ResearchUNSPECIFIED
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AIAA Paper95-2377
Record Number:CaltechAUTHORS:20130725-165119685
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39601
Deposited By: George Porter
Deposited On:26 Jul 2013 14:29
Last Modified:09 Nov 2021 23:45

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