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Theoretical analysis of the motion and evaporation of exhaled respiratory droplets of mixed composition

Parienta, Dror, Morawska, Lidia, Johnson, Graham R., Ristovski, Zoran, Hargreaves, Megan, Mengersen, Kerrie L., Corbett, Stephen, Chao, Christopher, Li, Yuguo, & Katoshevski, David (2010) Theoretical analysis of the motion and evaporation of exhaled respiratory droplets of mixed composition. Journal of Aerosol Science, 42(1), pp. 1-10.

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Abstract

The dynamics of droplets exhaled from the respiratory system during coughing or talking is addressed. A mathematical model is presented accounting for the motion of a droplet in conjunction with its evaporation. Droplet evaporation and motion are accounted for under two scenarios: 1) A well mixed droplet and 2) A droplet with inner composition variation. A multiple shells model was implemented to account for internal mass and heat transfer and for concentration and temperature gradients inside the droplet. The trajectories of the droplets are computed for a range of conditions and the spatial distribution and residence times of such droplets are evaluated.

Impact and interest:

7 citations in Scopus
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7 citations in Web of Science®

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ID Code: 38671
Item Type: Journal Article
Keywords: Exhaled Respiratory Droplets, Droplet Motion, Droplet Evaporation
DOI: 10.1016/j.jaerosci.2010.10.005
ISSN: 00218502
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OTHER PHYSICAL SCIENCES (029900) > Biological Physics (029901)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Sciences not elsewhere classified (040199)
Divisions: Past > Schools > Cell & Molecular Biosciences
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Institutes > Institute of Health and Biomedical Innovation
Past > Schools > Medical Sciences
Past > Schools > Physics
Copyright Owner: Copyright 2010 Elsevier
Deposited On: 19 Nov 2010 11:45
Last Modified: 01 Mar 2012 00:24

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