Takumi Watanabe
Publications 3
Abstract Thermocapillary-driven convection in a hanging droplet is experimentally investigated under normal- and micro-gravity conditions. A droplet is hung on a heated cylindrical rod facing downward, and another rod cooled is placed just beneath the droplet to create the designated temperature difference between both ends of the droplet. A transition of the flow field from a two-dimensional axisymmetric ‘steady’ flow to three-dimensional time-dependent ‘oscillatory’ ones by increasing temperat...
2 CitationsSource
#1Ichiro UenoH-Index: 14
Last.Toshihiro KanekoH-Index: 5
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#1Ichiro UenoH-Index: 14
#2Takumi Konisho (Ridai: Tokyo University of Science)H-Index: 3
Last.Takumi Watanabe (Ridai: Tokyo University of Science)H-Index: 1
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The present authors carried out an experimental study with a special interest upon the dynamics of the fluid in the vicinity of the boundary lineof three phases; solid-liquid-gasin- terface, which is so-called 'contact line.' The moving droplet on the solid substrate is accom- panied with the movement of the boundary line of three phases; solid-liquid-gas interface, which is so-called macroscopic 'contact line.' Existing studies have indicated there is a thin liquid film known as 'precursor film...