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Molecular Dynamics Simulations of Nanobubbles Formation Near the Substrate in a Liquid With Dissolved Gas

[+] Author Affiliations
Elena F. Moiseeva, Victor L. Malyshev

Bashkir State University, Ufa, Russia

Dmitriy F. Marin

Bashkir State University, Ufa, RussiaInstitute of Mechanics of Ufa Branch of the Russian Academy of Sciences, Ufa, Russia

Nail A. Gumerov

University of Maryland, College Park, MDBashkir State University, Ufa, Russia

Iskander Sh. Akhatov

North Dakota State University, Fargo, NDBashkir State University, Ufa, Russia

Paper No. IMECE2014-37050, pp. V007T09A060; 8 pages
doi:10.1115/IMECE2014-37050
From:
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 7: Fluids Engineering Systems and Technologies
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4954-5
  • Copyright © 2014 by ASME

abstract

Nanobubbles appearing on the interface between liquid and the hydrophobic substrate play an important role in various natural and industrial processes. The current study presents the MD simulations of surface nanobubbles on the liquid-solid interface, where the liquid phase consists of argon and dissolved neon, while the gaseous phase consists of neon and argon vapor. The interactions between all the particles are determined by the Lennard-Jones potential. The contact angle is studied as a function of the Lennard-Jones parameters for the liquid-solid and gas-solid interactions. Moreover, the influence of gas concentration on the system behavior is studied. The simulations are performed for the systems of tens nm in size, which contain up to 8 million molecules. The computations are accelerated using modern computational methods and algorithms as well as using high-performance hardware such as graphic processors.

Copyright © 2014 by ASME

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