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Nano-Droplet Impact on a Homogenous Surface Using Molecular Dynamics

[+] Author Affiliations
Shalabh C. Maroo, Jacob N. Chung

University of Florida, Gainesville, FL

Paper No. ENIC2008-53036, pp. 113-121; 9 pages
doi:10.1115/ENIC2008-53036
From:
  • ASME 2008 3rd Energy Nanotechnology International Conference collocated with the Heat Transfer, Fluids Engineering, and Energy Sustainability Conferences
  • ASME 2008 3rd Energy Nanotechnology International Conference
  • Jacksonville, Florida, USA, August 10–14, 2008
  • Conference Sponsors: Nanotechnology Institute
  • ISBN: 0-7918-4323-9 | eISBN: 0-7918-3832-3
  • Copyright © 2008 by ASME

abstract

Impact of argon nano-droplet on homogeneous platinum wall is simulated using molecular dynamics. Wall temperature (90 K, 300 K) and surface wettability (high, low based on εAr–Pt parameter) are varied to study four cases. An external force is applied on the drop for a short time period to achieve velocities in the range of 13 m/s – 15 m/s. Interface markers, interfacial fit and contact angles are evaluated. Complete spreading is obtained on the high wettable surface, whereas drop oscillations are seen for the low wettable surface for wall temperatures of 90 K. Liedenfrost effect is observed for wall temperature of 300 K for both cases of surface wettability.

Copyright © 2008 by ASME

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