Transport Phenomena - Delft University of Technology

Sorted by YearSorted by First Author

Droplets Sliding over Shearing Surfaces Studied by Molecular Dynamics

Droplets Sliding over Shearing Surfaces Studied by Molecular Dynamics, J. J. Derksen. A.I.Ch.E. Journal 2015, 61  (11), 4020–4027.

Download

[DOI] 

Abstract

Through molecular dynamics, the sliding motion of a liquid drop embedded in another liquid over a substrate as a result of a shear flow is studied. The two immiscible Lennard-Jones liquids have the same density and viscosity. The system is isothermal. Viscosity, surface tension, and static contact angles follow from calibration simulations. Sliding speeds and drop deformations (in terms of dynamic contact angles) are determined as a function of the shear rate. The latter is nondimensionalized as a capillary number (Ca) that has been varied in the range 0.02-0.64. For Ca up to 0.32, sliding speeds are approximately linear in Ca. For larger Ca, very strong droplet deformations are observed. (c) 2015 American Institute of Chemical Engineers.

BibTeX

@article{ ISI:000362959700039,
Author = {Derksen, J. J.},
Title = {Droplets Sliding over Shearing Surfaces Studied by Molecular Dynamics},
Journal = {A.I.Ch.E. Journal},
Year = {2015},
Volume = {61},
Number = {11},
Pages = {4020-4027},
Month = {},
Abstract = {Through molecular dynamics, the sliding motion of a liquid drop embedded in another liquid over a substrate as a result of a shear flow is studied. The two immiscible Lennard-Jones liquids have the same density and viscosity. The system is isothermal. Viscosity, surface tension, and static contact angles follow from calibration simulations. Sliding speeds and drop deformations (in terms of dynamic contact angles) are determined as a function of the shear rate. The latter is nondimensionalized as a capillary number (Ca) that has been varied in the range 0.02-0.64. For Ca up to 0.32, sliding speeds are approximately linear in Ca. For larger Ca, very strong droplet deformations are observed. (c) 2015 American Institute of Chemical Engineers.},
DOI = {10.1002/aic.14930},
ISSN = {0001-1541},
EISSN = {1547-5905},
Unique-ID = {ISI:000362959700039},
}

Generated by bib2html.pl (written by Patrick Riley ) on Fri Jul 28, 2017 13:53:00


Last modified: July 28 2017. © Delft University of Technology - TP group 2012