Effect of hydrodynamics, interface capillarity and molecular kinetics on wetting and de-wetting on small cylindrical surfaces

Karakashev, Stoyan I. and Nguyen, Anh V. (2008) Effect of hydrodynamics, interface capillarity and molecular kinetics on wetting and de-wetting on small cylindrical surfaces. Asia-Pacific Journal of Chemical Engineering, 3 1: 30-35. doi:10.1002/apj.114


Author Karakashev, Stoyan I.
Nguyen, Anh V.
Title Effect of hydrodynamics, interface capillarity and molecular kinetics on wetting and de-wetting on small cylindrical surfaces
Journal name Asia-Pacific Journal of Chemical Engineering   Check publisher's open access policy
ISSN 1932-2143
Publication date 2008-01-01
Year available 2008
Sub-type Article (original research)
DOI 10.1002/apj.114
Open Access Status
Volume 3
Issue 1
Start page 30
End page 35
Total pages 6
Editor M.O. Tade
Place of publication United States of America
Publisher John Wiley & Sons Inc
Language eng
Subject C1
9611 Physical and Chemical Conditions of Water
0904 Chemical Engineering
Abstract Wetting and de-wetting phenomena control many natural and industrial processes. Both statics and dynamics of wetting and de-wetting are still a subject of intensive research. This article presents a novel modelling approach combined with experimental validation for the wetting and de-wetting processes taking place on small cylindrical surfaces, such as wires being vertically withdrawn from a pool of liquid under steady flow conditions and slow withdrawal velocity. In particular, both the contact hydrodynamics and interface molecular kinetics are combined to predict the gas-liquid interface deformation, the dynamic contact angle, and the moving contact line. The nonlinear equations governing the meniscus deformation and molecular kinetics at the moving surface are numerically solved. The outcome of this study is directly relevant to a number of industrial applications, including metallurgical coating of wires. Copyright © 2008 Curtin University of Technology and John Wiley & Sons, Ltd.
Keyword three-phase contact
dynamic meniscus
wetting
contact angle
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Chemical Engineering Publications
 
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Created: Fri, 17 Apr 2009, 00:19:55 EST by Katherine Montagu on behalf of School of Chemical Engineering