Coarse resolution large-eddy simulation of turbulent channel flows
Coarse resolution large-eddy simulation of turbulent channel flows
In this paper two important factors - the subgrid model length scale and lateral resolution - are investigated for the large-eddy simulation (LES) of high Reynolds number turbulent channel flow using resolutions that are insufficient to fully resolve the buffer layer. It is found that the use of standard damping functions will not reproduce correct mean velocity profiles and that good LES results will only be obtained by adjustment of the subgrid model length scales. To also obtain accurate turbulence statistics then special attention has to be given to the lateral resolution.
channel management, eddy currents, turbulence
20-35
Shi, J.
5143ffd8-6833-4ed0-b248-667c018bf98a
Thomas, T.G.
bccfa8da-6c8b-4eec-b593-00587d3ce3cc
Williams, J.J.R.
00bddc69-411c-4267-98d9-0503b837ccda
2001
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.
(2001)
Coarse resolution large-eddy simulation of turbulent channel flows.
International Journal of Numerical Methods for Heat and Fluid Flow, 11 (1), .
(doi:10.1108/09615530110364060).
Abstract
In this paper two important factors - the subgrid model length scale and lateral resolution - are investigated for the large-eddy simulation (LES) of high Reynolds number turbulent channel flow using resolutions that are insufficient to fully resolve the buffer layer. It is found that the use of standard damping functions will not reproduce correct mean velocity profiles and that good LES results will only be obtained by adjustment of the subgrid model length scales. To also obtain accurate turbulence statistics then special attention has to be given to the lateral resolution.
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Published date: 2001
Keywords:
channel management, eddy currents, turbulence
Identifiers
Local EPrints ID: 21754
URI: http://eprints.soton.ac.uk/id/eprint/21754
ISSN: 0961-5539
PURE UUID: 9e8ea2a0-5c83-49e9-93a5-57233a1de90d
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Date deposited: 13 Mar 2006
Last modified: 15 Mar 2024 06:32
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Author:
J. Shi
Author:
T.G. Thomas
Author:
J.J.R. Williams
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