Abstract
This paper adopts an Eulerian-Lagrangian approach to investigate the dispersion behaviors of human exhaled droplets under the displacement ventilation in a typical office room. A particle source in-cell (PSI-C) scheme is used to correlate the concentration with the Lagrangian particle trajectories in computational cells. Droplets with size from 0.1-20μm are released from a numerical thermal manikin's (NTM) nose or mouth with different initial momentums and directions. The possible cross-infection risk caused by the exhaled infectious droplets is investigated. It is found that droplets exhaled from the NTM's nose could be caught by its thermal plume whereas droplets exhaled from the NTM's mouth could penetrate the thermal plume. Droplet sizes affect their dispersion behaviors. The cross-infection risk is small and doesn't depend a lot on the ventilation conditions in this study.
Original language | English |
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Title of host publication | Proceedings of Building Simulation 2011: 12th Conference of International Building Performance Simulation Association |
Pages | 207-214 |
Number of pages | 8 |
Publication status | Published - 1 Dec 2011 |
Event | 12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011 - Sydney, NSW, Australia Duration: 14 Nov 2011 → 16 Nov 2011 |
Conference
Conference | 12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011 |
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Country/Territory | Australia |
City | Sydney, NSW |
Period | 14/11/11 → 16/11/11 |
ASJC Scopus subject areas
- Computer Science Applications
- Building and Construction
- Architecture
- Modelling and Simulation