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Effect of Ambient-Gas Forced Flow on Oscillatory Thermocapillary Convection of Half-Zone Liquid Bridge

I. Ueno1, A. Kawazoe2, H. Enomoto3
Tokyo University of Science, Noda, Chiba, Japan
Graduate School, Tokyo University of Science, Noda, Chiba, Japan
Graduate School, Tokyo University of Science, Noda, Chiba, Japan (present: Toyota Motor Corp., Aichi, Japan)

Fluid Dynamics & Materials Processing 2010, 6(1), 99-108. https://doi.org/10.3970/fdmp.2010.006.099

Abstract

The authors focus on thermocapillary-driven flow in a half-zone liquid bridge and its transition from two-dimensional steady flow to three-dimensional oscillatory one under an effect of forced convection in ambient gas region around the liquid bridge. The liquid bridge is settled in a cylindrical 'external shield,' in which upward/downward forced flow of the ambient gas is added. The critical condition of the flow transition in the 2-cSt silicone-oil liquid bridge is examined as functions of the aspect ratio and the volume ratio of the liquid bridge, and averaged velocity of the ambient gas. The authors indicate a significant effect of the external flow around the liquid bridge.

Keywords

Liquid bridge, ambient gas flow, flow transition.

Cite This Article

Ueno, I., Kawazoe, A., Enomoto, H. (2010). Effect of Ambient-Gas Forced Flow on Oscillatory Thermocapillary Convection of Half-Zone Liquid Bridge. FDMP-Fluid Dynamics & Materials Processing, 6(1), 99–108.



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