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Contact line dynamics of gravity driven spreading of liquids

Published version
Peer-reviewed

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Authors

Mohammad Karim, Alireza  ORCID logo  https://orcid.org/0000-0002-2031-9057
Fujii, Keita 
Kavehpour, H Pirouz 

Abstract

jats:titleAbstract</jats:title> jats:pThe spreading dynamics of the gravity-driven liquid motion on an inclined solid surface was studied by considering two fundamental physical models: the molecular kinetic theory and the hydrodynamic theory (HDT). The molecular kinetic theory is the most appropriate model to describe the gravity driven spreading mechanism investigated in this study. The gravity driven spreading which is one form of the forced spreading mechanism was compared with the spontaneous spreading for the same liquid/solid system from previous study by Mohammad Karim jats:italicet al</jats:italic> (2016 jats:italicLangmuir</jats:italic> jats:bold32</jats:bold> 10153). Unlike the gravity driven spreading, the HDT was appropriate model to define the spontaneous spreading. This finding reveals the importance of the mechanism of spreading which are the forced and the spontaneous on the suitability of the physical model such as the molecular kinetic theory and the HDT to describe the spreading dynamics.</jats:p>

Description

Keywords

4012 Fluid Mechanics and Thermal Engineering, 40 Engineering

Journal Title

Fluid Dynamics Research

Conference Name

Journal ISSN

0169-5983
1873-7005

Volume Title

53

Publisher

IOP Publishing