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Molecular Dynamics Simulation of Explosive Boiling on Concave Nanostructured Surface

[+] Author Affiliations
Pengfei Ji, Mengzhe He, Yiming Rong

Southern University of Science and Technology, Shenzhen, China

Yuwen Zhang

University of Missouri, Columbia, MO

Yong Tang

South China University of Technology, Guangzhou, China

Paper No. IMECE2018-86965, pp. V08AT10A026; 6 pages
doi:10.1115/IMECE2018-86965
From:
  • ASME 2018 International Mechanical Engineering Congress and Exposition
  • Volume 8A: Heat Transfer and Thermal Engineering
  • Pittsburgh, Pennsylvania, USA, November 9–15, 2018
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5211-8
  • Copyright © 2018 by ASME

abstract

Explosive boiling occurs when a liquid film contacts with the wall at extremely high temperature, which is detrimental to continuous heat transfer process. In this paper, five kinds of nanostructured surfaces with equal distance between neighboring nano-concaves and flat surface are set up to study the explosive boiling of liquid argon on copper surface. For all the five cases with concave nanostructured surface, the ratio of concave nanostructured surface area to flat surface area is kept as a constant. The temporal and spatial distributions of temperature, atomic motion and number density are recorded to study the effects of different nanostructured surface designs on explosive boiling. From the perspective of reducing explosive boiling, the most favorable nanostructured surface is determined.

Copyright © 2018 by ASME

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