Journal of Fluid Mechanics

Table of Contents - Volume 554 - 2006  


Papers

Multiscale modelling in the numerical computation of isothermal non-wetting

MARC K. SMITH a1 and G. PAUL NEITZEL a1
a1 The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0405, USA

Article author query
smith mk   [Google Scholar] 
neitzel gp   [Google Scholar] 
 

Abstract

A state of permanent, isothermal non-wetting of a solid surface by a normally wetting liquid may be achieved if the surface moves tangentially to a liquid drop that is pressed against it. Surrounding gas is swept into the space between the liquid and solid creating a lubricating film that prevents wetting. The length scales of the drop and the film are typically three or more orders of magnitude different, making numerical simulation difficult from a resolution standpoint. The present paper focuses on a hybrid approach employing lubrication theory for the thinnest portions of the gas film and numerical simulation for the liquid and outer gas phases.

(Published Online April 24 2006)
(Received August 17 2005)
(Revised January 16 2006)


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