LES for modeling the urban environment

Castro, Ian P. and Xie, Zheng-Tong (2009) LES for modeling the urban environment. ERCOFTAC Bulletin, 78, 4-10.


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This paper presents some of our most important conclusions from the work undertaken thus. We have found (i) that, perhaps surprisingly at first sight, LES for flows over such complex surfaces is in fact less technically demanding than for smooth surfaces at similar Reynolds numbers (the flow dynamics are dominated by obstacle-scale motions rather than thin boundary layers), (ii) that a highly efficient filter technique can be used to provide appropriate turbulence inlet conditions, and (iii) that the overall approach can yield flow and concentration results in good agreement with experimental data.

Item Type: Article
ISSNs: 1070-6631 (print)
Subjects: T Technology > T Technology (General)
Divisions : University Structure - Pre August 2011 > School of Engineering Sciences > Aerodynamics & Flight Mechanics
ePrint ID: 148061
Accepted Date and Publication Date:
31 May 2009Published
Date Deposited: 27 Apr 2010 14:00
Last Modified: 31 Mar 2016 13:22
URI: http://eprints.soton.ac.uk/id/eprint/148061

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