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Molecular Dynamics Simulation of Marangoni Flow in a Cavity

[+] Author Affiliations
G. Fuchs, H. C. Kuhlmann

Vienna University of Technology, Vienna, Austria

Paper No. ICNMM2007-30137, pp. 871-877; 7 pages
  • ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels
  • ASME 5th International Conference on Nanochannels, Microchannels, and Minichannels
  • Puebla, Mexico, June 18–20, 2007
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4272-X | eISBN: 0-7918-3800-5
  • Copyright © 2007 by ASME


The flow in two liquids inside a rectangular side-heated cavity, driven by a thermal-gradient-induced Marangoni effect along the common interface, is investigated numerically using molecular dynamics simulations. For this configuration the surface-tension gradient drives two counter-rotating vortices inside the cavity. The model fluids are simple Lennard-Jones type fluids, selected for varying liquid-solid contact angles. The velocity field is determined and compared to analytical results of the continuum creeping-flow approximation of this configuration.

Copyright © 2007 by ASME



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