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The Study of Argon’s Viscosity Near the Wall of Nanopore by Molecular Dynamics Simulations

[+] Author Affiliations
Qixin Liu

Chongqing University of Science and Technology, Chongqing, China

Paper No. MNHMT2013-22264, pp. V001T11A014; 6 pages
doi:10.1115/MNHMT2013-22264
From:
  • ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer
  • ASME 2013 4th International Conference on Micro/Nanoscale Heat and Mass Transfer
  • Hong Kong, China, December 11–14, 2013
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-3615-4
  • Copyright © 2013 by ASME

abstract

Many uncommon gas flow phenomena in nanopores have been found by experiments. Besides that, another special characteristic of gas flow at nanopore is that gas’s number density shows uneven distribution. From the point of molecular motion, gas’s number density would affect its dynamic viscosity, so it’s very necessary to study whether the gas’s viscosity is uneven. Due to the gas density’s fluctuation usually takes place near the wall surface so the present paper focuses on the gas’s viscosity near the wall of nanopore. Our molecular dynamics simulation results indicate that the gas’s viscosity in the region near the wall surface isn’t a constant and fluctuates greatly. The profiles of gas’s viscosity and gas number density coincide very well.

Copyright © 2013 by ASME

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