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 article publication › Journal article › Academic research › peer-review

76 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.

Original language	English
Pages (from-to)	1-10
Number of pages	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

Keywords

Droplet dynamics
Modeling
Spray/aerosol

ASJC Scopus subject areas

Environmental Engineering
Pollution
Mechanical Engineering
Fluid Flow and Transfer Processes
Atmospheric Science

More information

10.1016/j.jaerosci.2010.10.005

Cite this

@article{3f36d70b5f344694919f941a227a7426,

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.",

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",

year = "2011",

month = jan,

doi = "10.1016/j.jaerosci.2010.10.005",

language = "English",

volume = "42",

pages = "1--10",

journal = "Journal of Aerosol Science",

issn = "0021-8502",

publisher = "Elsevier Ltd",

number = "1",

}

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.

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.

KW - Droplet dynamics

KW - Modeling

KW - Spray/aerosol

UR - https://www.scopus.com/pages/publications/78149237364

U2 - 10.1016/j.jaerosci.2010.10.005

DO - 10.1016/j.jaerosci.2010.10.005

M3 - Journal article

AN - SCOPUS:78149237364

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

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this