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

D. Parienta; L. Morawska; G. R. Johnson; Z. D. Ristovski; M. Hargreaves; K. Mengersen; S. Corbett; C. Y H Chao; Y. Li; D. Katoshevski

doi:10.1016/j.jaerosci.2010.10.005

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

D. Parienta, L. Morawska, G. R. Johnson, Z. D. Ristovski, M. Hargreaves, K. Mengersen, S. Corbett, C. Y H Chao, Y. Li, D. Katoshevski

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

74 Citations (Scopus)

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. © 2010 Elsevier Ltd.

Original language	English
Pages (from-to)	1-10
Journal	Journal of Aerosol Science
Volume	42
Issue number	1
DOIs	https://doi.org/10.1016/j.jaerosci.2010.10.005
Publication status	Published - Jan 2011
Externally published	Yes

Research Keywords

Droplet dynamics
Modeling
Spray/aerosol

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10.1016/j.jaerosci.2010.10.005

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title = "Theoretical analysis of the motion and evaporation of exhaled respiratory droplets of mixed composition",

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. {\textcopyright} 2010 Elsevier Ltd.",

keywords = "Droplet dynamics, Modeling, Spray/aerosol",

author = "D. Parienta and L. Morawska and Johnson, {G. R.} and Ristovski, {Z. D.} and M. Hargreaves and K. Mengersen and S. Corbett and Chao, {C. Y H} and Y. Li and D. Katoshevski",

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TY - JOUR

T1 - Theoretical analysis of the motion and evaporation of exhaled respiratory droplets of mixed composition

AU - Parienta, D.

AU - Morawska, L.

AU - Johnson, G. R.

AU - Ristovski, Z. D.

AU - Hargreaves, M.

AU - Mengersen, K.

AU - Corbett, S.

AU - Chao, C. Y H

AU - Li, Y.

AU - Katoshevski, D.

PY - 2011/1

Y1 - 2011/1

N2 - 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. © 2010 Elsevier Ltd.

AB - 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. © 2010 Elsevier Ltd.

KW - Droplet dynamics

KW - Modeling

KW - Spray/aerosol

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U2 - 10.1016/j.jaerosci.2010.10.005

DO - 10.1016/j.jaerosci.2010.10.005

M3 - RGC 21 - Publication in refereed journal

SN - 0021-8502

VL - 42

SP - 1

EP - 10

JO - Journal of Aerosol Science

JF - Journal of Aerosol Science

IS - 1

ER -

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

Abstract

Research Keywords

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