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CFD simulation of aerosol deposition in Apsley House, London

Grau-Bové, J; Mazzei, L; Thickett, D; Malki-Ephstein, L; Strlič, M; (2014) CFD simulation of aerosol deposition in Apsley House, London. In: Malki-Epsthein, L and Spataru, C and Marjanovic Halburd, L and Mumovic, D, (eds.) Proceedings of the 2014 Building Simulation and Optimization Conference. The Bartlett, UCL Faculty of the Built Environment, Institute for Environmental Design and Engineering: London, UK.

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Abstract

We implemented an Eulerian model of aerosol dispersion and deposition in a commercial CFD code (Ansys Fluent). We used this model to simulate the penetration, dispersion and deposition of particulate matter of outdoor origin (larger than 1 µm) in a naturally ventilated historical building (Apsley House, London). The ingress of particles through cracks in the building envelope is estimated using a penetration factor model implemented into the CFD code. We investigate the effects of wind induced leakage, forced and natural ventilation. Our approach successfully predicts the spatial variation of deposition, and offers reasonable estimations of maximum and minimum yearly average deposition rates. Considering only ventilation, the deposition velocity vd = 2.6×10−4±8.6×10−5 s −1 , considering only leakage, vd = 6.6×10−5±4.18×10−5 s −1 . Both values are within the experimentally determined range, with a maximum of vd = 1×10−4 , minimum of vd = 9.2×10−6 , and average of vd = 2.1×10−5 s −1 .

Type: Proceedings paper
Title: CFD simulation of aerosol deposition in Apsley House, London
Event: 2nd Conference on Building Simulation and Optimization (BSO14)
Location: London, UK
ISBN-13: 9780993013706
Publisher version: https://web.archive.org/web/20141224032000/http://...
Language: English
Additional information: Copyright © IBPSA England, 2014. Corresponding author: Josep Grau-Bové. Authors are listed in order of their degree of involvement in the work, with the most active contributors listed first.
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/1418366
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