File(s) under permanent embargo

Reason: This item is currently closed access.

On evaporation rate and interfacial temperature of volatile sessile drops

journal contribution
posted on 18.07.2017 by Victor Starov, Khellil Sefiane
A theoretical description of the evaporation of sessile drops is proposed. The linear dependency of the evaporation rate on droplet’s base radius is described as well as the interfacial temperature. The analysis shows that most of evaporation is indeed concentrated near the contact line as demonstrated by experiments from literature. The evaporative cooling induced by evaporation results in a non-uniform temperature profile along the interface, being colder on the apex and hotter near the contact line. This result is counter-intuitive. It is the reason why the physical explanations are provided. Interfacial temperature gradient leads to Marangoni thermocpaillary driven flow within the drop.

Funding

V. Starov acknowledges a support by the Engineering and Physical Sciences Research Council, UK (Grant EP/D077869/1).

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Chemical Engineering

Published in

Collaoids and Surfaces A: Physicochem. Eng. Aspects

Volume

333

Pages

170 - 174

Citation

STAROV, V. and SEFIANE, K., 2009. On evaporation rate and interfacial temperature of volatile sessile drops. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 333, pp. 170-174.

Publisher

© Elsevier

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2009

Notes

This paper is in closed access.

ISSN

0927-7757

Language

en

Exports

Logo branding

Exports