Measuring a pollutant plume over a 3D printed city model
Measuring a pollutant plume over a 3D printed city model
The modelling of urban air pollution requires an understanding of the turbulent processes involved. This projects aims to provide direct measurements of turbulent dispersion over urban terrain with a high-fidelity experimental study. An investigation into scalar dispersion over a 3D-printed model of the City of Southampton, which is a medium-size coastal city in the south of England, was carried out. This 1000:1 scale model was created to represent 1 km2 of Southampton’s city centre experiencing an onshore south-south-westerly wind. Experimentally measuring turbulent scalar fluxes is challenging as it requires both concentration and velocity measurements in the same place, and at the same time. Particle image velocimetry (PIV) and planar laser induced fluorescence (PLIF) were used to measure full fields of these turbulent scalar fluxes. Measurements were carried out in streamwise-vertical and wall-parallel planes to create a detailed map of concentration and velocity data for a case in which a plume from an offshore point source was introduced upstream of this model.
urban aerodynamics, pollutant dispersion
Rich, Tomos Jared
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Vanderwel, Christina
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17 June 2025
Rich, Tomos Jared
ff1abcf4-5e05-43e7-8b17-9517a9378938
Vanderwel, Christina
fbc030f0-1822-4c3f-8e90-87f3cd8372bb
Rich, Tomos Jared and Vanderwel, Christina
(2025)
Measuring a pollutant plume over a 3D printed city model.
9th European African Conference on Wind Engineering, , Trondheim, Norway.
17 - 19 Jun 2025.
4 pp
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The modelling of urban air pollution requires an understanding of the turbulent processes involved. This projects aims to provide direct measurements of turbulent dispersion over urban terrain with a high-fidelity experimental study. An investigation into scalar dispersion over a 3D-printed model of the City of Southampton, which is a medium-size coastal city in the south of England, was carried out. This 1000:1 scale model was created to represent 1 km2 of Southampton’s city centre experiencing an onshore south-south-westerly wind. Experimentally measuring turbulent scalar fluxes is challenging as it requires both concentration and velocity measurements in the same place, and at the same time. Particle image velocimetry (PIV) and planar laser induced fluorescence (PLIF) were used to measure full fields of these turbulent scalar fluxes. Measurements were carried out in streamwise-vertical and wall-parallel planes to create a detailed map of concentration and velocity data for a case in which a plume from an offshore point source was introduced upstream of this model.
Text
Rich_Vanderwel_EACWE2025
- Accepted Manuscript
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Published date: 17 June 2025
Venue - Dates:
9th European African Conference on Wind Engineering, , Trondheim, Norway, 2025-06-17 - 2025-06-19
Keywords:
urban aerodynamics, pollutant dispersion
Identifiers
Local EPrints ID: 503591
URI: http://eprints.soton.ac.uk/id/eprint/503591
PURE UUID: 128d268f-3fa6-4339-8dd4-cc7f8ae76846
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Date deposited: 05 Aug 2025 17:00
Last modified: 22 Aug 2025 02:11
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Contributors
Author:
Tomos Jared Rich
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