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An experimental and computational study of three dimensional unsteady flow features found behind a truncated cylinder

An experimental and computational study of three dimensional unsteady flow features found behind a truncated cylinder
An experimental and computational study of three dimensional unsteady flow features found behind a truncated cylinder
The numerical prediction of three-dimensional turbulent separation regions and the resulting unsteady vortical flow patterns within these regions is still poor. This paper presents detailed experimental data for steady onset flow around a truncated cylinder of height/diameter ratio of 1.0, mounted on a ground plane. The performance of Large Eddy Simulation (LES) and Unsteady Reynolds-Averaged Navier Stokes (URANS) methods are compared for this case. It is seen that on an identical grid, the LES simulations predict the separation region more accurately than the URANS model and at 75% of the computational cost.
030959345X
305-321
National Academy Press
Pattenden, R.J.
53740e3d-70d8-42ae-b568-d73f733bf936
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Bressloff, N.W.
4f531e64-dbb3-41e3-a5d3-e6a5a7a77c92
Pattenden, R.J.
53740e3d-70d8-42ae-b568-d73f733bf936
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Bressloff, N.W.
4f531e64-dbb3-41e3-a5d3-e6a5a7a77c92

Pattenden, R.J., Turnock, S.R. and Bressloff, N.W. (2002) An experimental and computational study of three dimensional unsteady flow features found behind a truncated cylinder. In Twenty-Fourth Symposium on Naval Hydrodynamics. National Academy Press. pp. 305-321 .

Record type: Conference or Workshop Item (Paper)

Abstract

The numerical prediction of three-dimensional turbulent separation regions and the resulting unsteady vortical flow patterns within these regions is still poor. This paper presents detailed experimental data for steady onset flow around a truncated cylinder of height/diameter ratio of 1.0, mounted on a ground plane. The performance of Large Eddy Simulation (LES) and Unsteady Reynolds-Averaged Navier Stokes (URANS) methods are compared for this case. It is seen that on an identical grid, the LES simulations predict the separation region more accurately than the URANS model and at 75% of the computational cost.

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More information

Published date: 2002
Venue - Dates: 24th Symposium on Naval Hydrodynamics, Fukuoka, Japan, 2002-07-08 - 2002-07-13

Identifiers

Local EPrints ID: 22247
URI: http://eprints.soton.ac.uk/id/eprint/22247
ISBN: 030959345X
PURE UUID: 21cbeb2d-c474-4da4-a161-729fb3190b2c
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400

Catalogue record

Date deposited: 05 Jun 2006
Last modified: 16 Mar 2024 02:37

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Contributors

Author: R.J. Pattenden
Author: S.R. Turnock ORCID iD
Author: N.W. Bressloff

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