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Large-eddy simulation of dispersion from surface sources in arrays of obstacles

Record type: Article

Towards meeting the objective of simulating heat transfer processes in urban areas, the study of dispersion from a scalar (ground) surface area source has been addressed as a first step, as dispersion from such a source is in some ways analogous to heat transfer from the surface. Two different urban-like geometries are considered in this study: an array with uniform height cubes and an array with random height cuboids. Some point measurement dispersion experiments in a wind tunnel have previously been carried out in identical arrays using a naphthalene sublimation technique. Large-eddy simulations (LES) of these experiments have been performed as a validation study and the details, presented here, demonstrate the influence of the roughness morphology on the dispersion processes and the power of LES for obtaining physically important scalar turbulent flux information.

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Citation

Boppana, V.B.L., Xie, Z.T. and Castro, I.P. (2010) Large-eddy simulation of dispersion from surface sources in arrays of obstacles Boundary-Layer Meteorology, 135, (3), pp. 433-454. (doi:10.1007/s10546-010-9489-9).

More information

Accepted/In Press date: 27 October 2009
e-pub ahead of print date: 8 April 2010
Published date: 1 June 2010
Keywords: area source, dispersion, passive scalar, urban canopy
Organisations: Aerodynamics & Flight Mechanics

Identifiers

Local EPrints ID: 79634
URI: http://eprints.soton.ac.uk/id/eprint/79634
ISSN: 0006-8314
PURE UUID: f34c9748-b636-4200-b7a9-73f7e62b17c0
ORCID for Z.T. Xie: ORCID iD orcid.org/0000-0002-8119-7532

Catalogue record

Date deposited: 19 Mar 2010
Last modified: 18 Jul 2017 23:17

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