Pollutant dispersion around a single tall building
Pollutant dispersion around a single tall building
An experiment was carried out using a scale model of a tall building, with the goal of investigating the role of individual buildings in the dispersion of air pollution. Pollutant dispersion around an isolated building with a height-to-length aspect ratio of 1.4 is investigated using simultaneous particle image velocimetry and planar laser induced fluorescence. Dye is released from a ground-level point source five building heights upstream of the tall building. It was found that in this case the scalar plume was dispersed laterally strongly by the building, but only slightly vertically. It is hypothesized that this is due to 94% of the plume impinging below the stagnation point on the front of the building and being drawn into the horseshoe vortex. We expect this fraction would be lower in a case in which the building is in an array of smaller buildings, and that this would lead to more vertical dispersion.
air pollution dispersion, atmospheric boundary layer, particle image velocimetry, urban aerodynamics, Atmospheric boundary layer, Particle image velocimetry, Air pollution dispersion, Scale model experiment, Urban aerodynamics
Rich, Tomos
ff1abcf4-5e05-43e7-8b17-9517a9378938
Vanderwel, Christina
fbc030f0-1822-4c3f-8e90-87f3cd8372bb
16 July 2024
Rich, Tomos
ff1abcf4-5e05-43e7-8b17-9517a9378938
Vanderwel, Christina
fbc030f0-1822-4c3f-8e90-87f3cd8372bb
Rich, Tomos and Vanderwel, Christina
(2024)
Pollutant dispersion around a single tall building.
Boundary-Layer Meteorology, 190 (8), [34].
(doi:10.1007/s10546-024-00874-w).
Abstract
An experiment was carried out using a scale model of a tall building, with the goal of investigating the role of individual buildings in the dispersion of air pollution. Pollutant dispersion around an isolated building with a height-to-length aspect ratio of 1.4 is investigated using simultaneous particle image velocimetry and planar laser induced fluorescence. Dye is released from a ground-level point source five building heights upstream of the tall building. It was found that in this case the scalar plume was dispersed laterally strongly by the building, but only slightly vertically. It is hypothesized that this is due to 94% of the plume impinging below the stagnation point on the front of the building and being drawn into the horseshoe vortex. We expect this fraction would be lower in a case in which the building is in an array of smaller buildings, and that this would lead to more vertical dispersion.
Text
s10546-024-00874-w
- Version of Record
More information
Accepted/In Press date: 29 June 2024
Published date: 16 July 2024
Keywords:
air pollution dispersion, atmospheric boundary layer, particle image velocimetry, urban aerodynamics, Atmospheric boundary layer, Particle image velocimetry, Air pollution dispersion, Scale model experiment, Urban aerodynamics
Identifiers
Local EPrints ID: 492751
URI: http://eprints.soton.ac.uk/id/eprint/492751
ISSN: 0006-8314
PURE UUID: 49367cd2-0eb0-4fce-8c44-be59290877e9
Catalogue record
Date deposited: 13 Aug 2024 16:54
Last modified: 14 Aug 2024 01:47
Export record
Altmetrics
Contributors
Author:
Tomos Rich
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
