The University of Southampton
University of Southampton Institutional Repository

Three-dimensional flow in circular cavities of large spanwise aspect ratio

Three-dimensional flow in circular cavities of large spanwise aspect ratio
Three-dimensional flow in circular cavities of large spanwise aspect ratio
Experimental data are presented for the vortex flow in a nominally two-dimensional circular cavity. The vortex is driven by a separated shear layer along an open section of the cavity circumference. It is shown that the core vortex flow is perturbed three-dimensionally. An inviscid analysis of an ideal core (solid body) vortex is given and it is shown that this flow contains a steady perturbation whose characteristics are almost exactly those identified in the experiments. Viscous effects reduce (by a few per cent) the spanwise wavelength of the perturbation and also lead, via spatial variations in Reynolds stress, to a modification of the core flow so that the radial profile of the circumferential velocity is ‘S’-shaped, rather than linear
0022-1120
551-574
Tutty, Owen
c9ba0b98-4790-4a72-b5b7-09c1c6e20375
Savelsberg, Ralph
89477d47-a40d-486f-b8d7-ef6a695ed983
Castro, Ian P.
66e6330d-d93a-439a-a69b-e061e660de61
Tutty, Owen
c9ba0b98-4790-4a72-b5b7-09c1c6e20375
Savelsberg, Ralph
89477d47-a40d-486f-b8d7-ef6a695ed983
Castro, Ian P.
66e6330d-d93a-439a-a69b-e061e660de61

Tutty, Owen, Savelsberg, Ralph and Castro, Ian P. (2012) Three-dimensional flow in circular cavities of large spanwise aspect ratio. Journal of Fluid Mechanics, 707, 551-574. (doi:10.1017/jfm.2012.301).

Record type: Article

Abstract

Experimental data are presented for the vortex flow in a nominally two-dimensional circular cavity. The vortex is driven by a separated shear layer along an open section of the cavity circumference. It is shown that the core vortex flow is perturbed three-dimensionally. An inviscid analysis of an ideal core (solid body) vortex is given and it is shown that this flow contains a steady perturbation whose characteristics are almost exactly those identified in the experiments. Viscous effects reduce (by a few per cent) the spanwise wavelength of the perturbation and also lead, via spatial variations in Reynolds stress, to a modification of the core flow so that the radial profile of the circumferential velocity is ‘S’-shaped, rather than linear

Full text not available from this repository.

More information

Published date: 2012
Organisations: Engineering Science Unit, Aeronautics, Astronautics & Comp. Eng

Identifiers

Local EPrints ID: 342787
URI: https://eprints.soton.ac.uk/id/eprint/342787
ISSN: 0022-1120
PURE UUID: eeaacbb2-f1a4-4202-a00c-395b0723ba67

Catalogue record

Date deposited: 13 Sep 2012 13:35
Last modified: 16 Jul 2019 21:54

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×