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A revised slug model boundary layer correction for starting jet vorticity flux

Dabiri, John O. and Gharib, Morteza (2004) A revised slug model boundary layer correction for starting jet vorticity flux. Theoretical and Computational Fluid Dynamics, 17 (4). pp. 293-295. ISSN 0935-4964. doi:10.1007/s00162-004-0106-8.

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The flux of vorticity from a piston-cylinder vortex generator is commonly approximated using a model in which the fluid efflux is treated as a uniform slug of fluid with negligible boundary layer thickness. Shusser et al. (2002) introduced a correction to the slug model that accounts for boundary layer growth within the cylinder. We show that their implemented boundary layer solution contains an error, leading to an underestimate of the calculated boundary layer growth. We present a corrected model that agrees more closely with experimental measurements of starting jet vorticity flux and vortex ring core thickness.

Item Type:Article
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URLURL TypeDescription ReadCube access
Dabiri, John O.0000-0002-6722-9008
Gharib, Morteza0000-0002-2204-9302
Additional Information:© 2004 Springer-Verlag. Received December 15, 2003; Accepted February 4, 2004; Published online May 11, 2004. Communicated by S.A. Berger. The authors gratefully acknowledge many helpful suggestions by P. S. Krueger, as well as funding from National Science Foundation Grant 0309671.
Funding AgencyGrant Number
Subject Keywords:boundary layers, slug model, vortex rings, starting jet, vorticity flux
Issue or Number:4
Record Number:CaltechAUTHORS:20130319-080330094
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37546
Deposited By: Tony Diaz
Deposited On:19 Mar 2013 22:20
Last Modified:09 Nov 2021 23:29

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