Lifetime of sessile saliva droplets in the context of SARS-CoV-2

Balusamy, Saravanan and Banerjee, Sayak and Sahu, Kirti Chandra (2021) Lifetime of sessile saliva droplets in the context of SARS-CoV-2. International Communications in Heat and Mass Transfer, 123. p. 105178. ISSN 0735-1933

Full text not available from this repository. (Request a copy)


Spreading of respiratory diseases, such as COVID-19, from contaminated surfaces is dependent on the drying time of the deposited droplets containing the virus. The evaporation rate depends on environmental conditions, such as ambient temperature and relative humidity and physical properties (e.g., droplet volume, contact angle and composition). The respiratory droplets contain salt (NaCl), protein (mucin), and surfactant (dipalmitoylphosphatidylcholine) in addition to water, which are expected to influence the evaporation in a big way. A diffusion-based theoretical model for estimating the drying time is developed which takes into account the dynamic contact angle of saliva droplets laden with salt and insoluble surfactants. The effect of the initial volume, contact angle, salinity, surfactant concentration, ambient temperature and relative humidity on the drying time of droplets is investigated.

[error in script]
IITH Creators:
IITH CreatorsORCiD
Sahu, Kirti Chandra
Banerjee, SayakUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Evaporation, Saliva droplets, Sessile droplet, Wetting dynamics
Subjects: Chemical Engineering > Fluid Mechanics
Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: . LibTrainee 2021
Date Deposited: 30 Mar 2021 05:08
Last Modified: 30 Mar 2021 05:08
Publisher URL:
OA policy:
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 7681 Statistics for this ePrint Item