Journal
JOURNAL OF AEROSOL SCIENCE
Volume 42, Issue 1, Pages 1-10Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jaerosci.2010.10.005
Keywords
Droplet dynamics; Modeling; Spray/aerosol
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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. (C) 2010 Elsevier Ltd. All rights reserved.
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