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Scalar fluxes near a tall building in an aligned array of rectangular buildings

Scalar fluxes near a tall building in an aligned array of rectangular buildings
Scalar fluxes near a tall building in an aligned array of rectangular buildings
Scalar dispersion from ground level sources in arrays of buildings is investigated using wind-tunnel measurements and large eddy simulation (LES). An array of uniform height buildings of equal dimensions and an array with an additional single tall building (wind tunnel) or a periodically repeated tall building (LES) are considered. The buildings in the array are aligned and form long streets. Sensitivity of the dispersion pattern to small changes of wind direction is demonstrated. Vertical scalar fluxes are decomposed into the advective and turbulent parts and the influences of wind direction and of the presence of the tall building on scalar flux components are evaluated. In the uniform height array turbulent scalar fluxes were dominant, whereas the tall building causes increase of the magnitude of advective scalar fluxes which become the largest component.
scalar dispersion, large eddy simulation, wind tunnel experiments, atmospherics dispersion, tall building
0006-8314
1-23
Fuka, Vladimir
88c0044a-1c97-44cf-9238-785603e752a9
Xie, Zheng-Tong
98ced75d-5617-4c2d-b20f-7038c54f4ff0
Castro, Ian P.
66e6330d-d93a-439a-a69b-e061e660de61
Hayden, Paul
b5662acc-6375-4f86-afee-04c779155d5f
Carpentieri, Matteo
07cb3abe-34e2-422d-8728-23734c3ec17e
Robins, Alan G.
e522c3af-6028-4e6a-b34c-146487afc10d
Fuka, Vladimir
88c0044a-1c97-44cf-9238-785603e752a9
Xie, Zheng-Tong
98ced75d-5617-4c2d-b20f-7038c54f4ff0
Castro, Ian P.
66e6330d-d93a-439a-a69b-e061e660de61
Hayden, Paul
b5662acc-6375-4f86-afee-04c779155d5f
Carpentieri, Matteo
07cb3abe-34e2-422d-8728-23734c3ec17e
Robins, Alan G.
e522c3af-6028-4e6a-b34c-146487afc10d

Fuka, Vladimir, Xie, Zheng-Tong, Castro, Ian P., Hayden, Paul, Carpentieri, Matteo and Robins, Alan G. (2017) Scalar fluxes near a tall building in an aligned array of rectangular buildings. Boundary-Layer Meteorology, 1-23. (doi:10.1007/s10546-017-0308-4).

Record type: Article

Abstract

Scalar dispersion from ground level sources in arrays of buildings is investigated using wind-tunnel measurements and large eddy simulation (LES). An array of uniform height buildings of equal dimensions and an array with an additional single tall building (wind tunnel) or a periodically repeated tall building (LES) are considered. The buildings in the array are aligned and form long streets. Sensitivity of the dispersion pattern to small changes of wind direction is demonstrated. Vertical scalar fluxes are decomposed into the advective and turbulent parts and the influences of wind direction and of the presence of the tall building on scalar flux components are evaluated. In the uniform height array turbulent scalar fluxes were dominant, whereas the tall building causes increase of the magnitude of advective scalar fluxes which become the largest component.

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More information

Accepted/In Press date: 22 September 2017
e-pub ahead of print date: 4 November 2017
Keywords: scalar dispersion, large eddy simulation, wind tunnel experiments, atmospherics dispersion, tall building
Organisations: Aeronautics, Astronautics & Comp. Eng, Aerodynamics & Flight Mechanics Group

Identifiers

Local EPrints ID: 407567
URI: http://eprints.soton.ac.uk/id/eprint/407567
ISSN: 0006-8314
PURE UUID: 79d071fc-af02-42ae-9343-392c8b85368e
ORCID for Zheng-Tong Xie: ORCID iD orcid.org/0000-0002-8119-7532

Catalogue record

Date deposited: 13 Apr 2017 01:09
Last modified: 10 Jan 2022 05:35

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Contributors

Author: Vladimir Fuka
Author: Zheng-Tong Xie ORCID iD
Author: Ian P. Castro
Author: Paul Hayden
Author: Matteo Carpentieri
Author: Alan G. Robins

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