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Hollow vortices and wakes past Chaplygin cusps

Hollow vortices and wakes past Chaplygin cusps
Hollow vortices and wakes past Chaplygin cusps
By using analytic tools for 2D rotational inviscid flow, the stagnation points of Pocklington hollow vortices are replaced by Chaplygin cusps, that is, by regions of fluid at rest. By solidifying the bounding free streamlines, solid bodies are obtained along whose walls adverse pressure gradients are avoided. These results are relevant to the theory and practice of control of separated flow at high Reynolds number. Examples are presented pertinent to single bodies and cascade of bodies which trap hollow vortices or generate open hollow wakes.
hollow vortices, separated flow, complex analysis
0997-7546
78-84
Zannetti, Luca
c01e644a-1583-46b7-a307-cca4b5de2ae0
Lasagna, Davide
0340a87f-f323-40fb-be9f-6de101486b24
Zannetti, Luca
c01e644a-1583-46b7-a307-cca4b5de2ae0
Lasagna, Davide
0340a87f-f323-40fb-be9f-6de101486b24

Zannetti, Luca and Lasagna, Davide (2012) Hollow vortices and wakes past Chaplygin cusps. European Journal of Mechanics - B/Fluids, 38, 78-84. (doi:10.1016/j.euromechflu.2012.10.003).

Record type: Article

Abstract

By using analytic tools for 2D rotational inviscid flow, the stagnation points of Pocklington hollow vortices are replaced by Chaplygin cusps, that is, by regions of fluid at rest. By solidifying the bounding free streamlines, solid bodies are obtained along whose walls adverse pressure gradients are avoided. These results are relevant to the theory and practice of control of separated flow at high Reynolds number. Examples are presented pertinent to single bodies and cascade of bodies which trap hollow vortices or generate open hollow wakes.

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More information

Published date: 22 October 2012
Keywords: hollow vortices, separated flow, complex analysis
Organisations: Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 358016
URI: http://eprints.soton.ac.uk/id/eprint/358016
DOI: doi:10.1016/j.euromechflu.2012.10.003
ISSN: 0997-7546
PURE UUID: 1a2a24b7-582b-4b88-b970-137b52eacedf
ORCID for Davide Lasagna: ORCID iD orcid.org/0000-0002-6501-6041

Catalogue record

Date deposited: 07 Oct 2013 15:46
Last modified: 12 Nov 2024 02:49

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Contributors

Author: Luca Zannetti
Author: Davide Lasagna ORCID iD

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