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Free-surface effects in open channel flow at moderate Froude and Reynold's numbers

Free-surface effects in open channel flow at moderate Froude and Reynold's numbers
Free-surface effects in open channel flow at moderate Froude and Reynold's numbers
A large-eddy simulation of flow in an open channel has been carried out at the moderate Froude number, Fr = 0.66, and Reynolds number, Re = 20,800. A resolution has been used that allowed the simulation to be carried out on a workstation; thus enabling the results obtained to be viewed within an engineering context. The code used treats the free-surface exactly and allows it to freely deform with the underlying turbulence. The turbulent features found in this study are consistent with those found both by experimental observations and direct numerical simulations at lower Reynolds numbers where the free-surface has been treated as a stress free rigid lid.
0022-1686
465-474
Shi, J.
5143ffd8-6833-4ed0-b248-667c018bf98a
Thomas, T.G.
bccfa8da-6c8b-4eec-b593-00587d3ce3cc
Williams, J.J.R.
00bddc69-411c-4267-98d9-0503b837ccda
Shi, J.
5143ffd8-6833-4ed0-b248-667c018bf98a
Thomas, T.G.
bccfa8da-6c8b-4eec-b593-00587d3ce3cc
Williams, J.J.R.
00bddc69-411c-4267-98d9-0503b837ccda

Shi, J., Thomas, T.G. and Williams, J.J.R. (2000) Free-surface effects in open channel flow at moderate Froude and Reynold's numbers. Journal of Hydraulic Research, 38 (6), 465-474.

Record type: Article

Abstract

A large-eddy simulation of flow in an open channel has been carried out at the moderate Froude number, Fr = 0.66, and Reynolds number, Re = 20,800. A resolution has been used that allowed the simulation to be carried out on a workstation; thus enabling the results obtained to be viewed within an engineering context. The code used treats the free-surface exactly and allows it to freely deform with the underlying turbulence. The turbulent features found in this study are consistent with those found both by experimental observations and direct numerical simulations at lower Reynolds numbers where the free-surface has been treated as a stress free rigid lid.

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More information

Published date: 2000
Organisations: Aerodynamics & Flight Mechanics

Identifiers

Local EPrints ID: 21621
URI: http://eprints.soton.ac.uk/id/eprint/21621
ISSN: 0022-1686
PURE UUID: 0bd96000-ea9d-490c-8ef2-1bb5d4827cc6

Catalogue record

Date deposited: 08 Feb 2007
Last modified: 08 Jan 2022 15:49

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Contributors

Author: J. Shi
Author: T.G. Thomas
Author: J.J.R. Williams

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