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Title: Instantaneous distribution of fluxes in the course of evaporation of sessile liquid droplets: computer simulations
Authors: Semenov, Sergey
Starov, Victor
Rubio, Ramon
Velarde, M.G.
Keywords: Evaporation
Sessile droplets
Issue Date: 2010
Publisher: © Elsevier
Citation: SEMENOV, S. ... et al., 2010. Instantaneous distribution of fluxes in the course of evaporation of sessile liquid droplets: computer simulations. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 373 (1-3), pp. 127-134.
Abstract: Instantaneous distribution of mass and thermal fluxes inside and outside of an evaporating sessile droplet is considered using computer simulations. The latter distribution are calculated in a self consistent way by considering an interconnected problem of vapour transfer in the vapour phase outside the droplet, heat transfer in vapour, liquid and solid substrate, and Marangoni convection inside the liquid droplet. The influence of thermal conductivity of the solid support on the evaporation process is evaluated. It is shown that the lower the thermal conductivity of the solid substrate the higher is the deviation from the isothermal case. However, if the mean temperature of the droplet surface is used instead of the temperature of the surrounding air for the vapour concentration on the droplet surface then the calculated dependences coincide with those calculated for the isothermal case. The deduced dependences of instantaneous fluxes can be applied for self-consistent calculations of time evolution of the evaporation processes of sessile droplets.
Version: Accepted for publication
DOI: 10.1016/j.colsurfa.2010.10.004
URI: https://dspace.lboro.ac.uk/2134/7671
Publisher Link: http://dx.doi.org/10.1016/j.colsurfa.2010.10.004
ISSN: 0927-7757
Appears in Collections:Published Articles (Chemical Engineering)

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