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Numerical Simulation of Oscillatory Marangoni Flow in Encapsulated Liquid Bridge

[+] Author Affiliations
Lan Peng, You-Rong Li, Dan-Ling Zeng, Qing-Hua Chen

Chongqing University

Nobuyuki Imaishi

Kyushu University

Paper No. IMECE2005-80795, pp. 939-944; 6 pages
doi:10.1115/IMECE2005-80795
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Part B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4222-3 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

The physical and mathematical models of the Marangoni convection of KF-96 silicone oil and FC-70 fluorinart in an encapsulated liquid bridge were established. To contrast to this configuration, the Marangoni convection of KF-96 silicone oil in a liquid bridge was also studied in present work. We conducted a series of unsteady two-dimensional numerical simulations. Simulation conditions correspond to those in the experiments of Majima and Kawamura (2001). The simulation results with large Marangoni number (Ma) predicted oscillatory flows under microgravity. The critical conditions for the onset oscillatory flow were determined and compared with the experimental results. Details of the flow and temperature fields were discussed. Oscillation frequencies were also exhibited.

Copyright © 2005 by ASME

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