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Please use this identifier to cite or link to this item: http://dspace.cityu.edu.hk/handle/2031/8412
Title: The influence of human movement on the transport of airborne infectious particles in hospital
Authors: Wang, Jinliang (王金良)
Chow, Tin Tai
Department: Division of Building Science and Technology
Issue Date: Dec-2012
Award: Won Best Student Paper Award in the ASim2012-1st Asia Conference of International Building Performance Simulation Association, Shanghai, November 25-27, 2012.
Description: The award winning work was published: Wang, J., & Chow, T. T. (2015). Influence of human movement on the transport of airborne infectious particles in hospital. Journal of Building Performance Simulation, 8(4), 205-215. doi: 10.1080/19401493.2014.905636
Type: Conference paper/presentation
Abstract: The impacts of human movement on the distribution of airborne infectious particles in hospital environment are investigated numerically. In the case of airborne infection isolation room, the influence of different walking speeds on the distribution of respiratory droplets is investigated by adopting the Lagrangian method for tracing the motion of droplets, the dynamic mesh model for describing human walking and the Eulerian unsteady Reynolds-averaged Navier–Stokes model for solving the airflow. In the case of operating theatre, the impact of surgeon bending movement on the distribution of bacteria-carrying particles (BCPs) is investigated by using a similar approach, except that the drift-flux model is used for modelling BCPs distribution. The adopted models are successfully validated against reported experimental data. The results show that both walking speed and bending posture change considerably the suspended droplets concentration in a room. The key factors regarding the simulation techniques are discussed.
Appears in Collections:Student Works With External Awards 

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