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Wetting and spreading at the molecular scaleWe have studied the microscopic aspects of the spreading of liquid drops on a solid surface by molecular dynamics simulations of coexisting three-phase Lennard-Jones systems of liquid, vapor and solid. We consider both spherically symmetric atoms and chain-like molecules, and a range of interaction strengths. As the attraction between liquid and solid increases we observed a smooth transition in spreading regimes, from partial to complete to terraced wetting. In the terraced case, where distinct monomolecular layers spread with different velocities, the layers are ordered but not solid, with qualitative behavior resembling recent experimental findings, but with interesting differences in the spreading rate.
Document ID
19950008125
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Koplik, Joel
(City Coll. of the City Univ. of New York NY, United States)
Banavar, Jayanth R.
(City Coll. of the City Univ. of New York NY, United States)
Date Acquired
September 6, 2013
Publication Date
August 1, 1994
Publication Information
Publication: NASA. Lewis Research Center, Second Microgravity Fluid Physics Conference
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
95N14539
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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