Onset of oscillatory Marangoni convection in a liquid bridge

Author(s):  
L. Carotenuto ◽  
C. Albanese ◽  
D. Castagnolo ◽  
R. Monti
2015 ◽  
Vol 2015.28 (0) ◽  
pp. _096-1_-_096-2_
Author(s):  
Koki Nishime ◽  
Tatsuya Yoshino ◽  
Hisashi Minakuchi ◽  
Yasunori Okano

Author(s):  
Lan Peng ◽  
You-Rong Li ◽  
Nobuyuki Imaishi ◽  
Dan-Ling Zeng ◽  
Qing-Hua Chen

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.


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