Overview of “Dynamic Surf” Project in Kibo–Dynamic Behavior of Large-Scale Thermocapillary Liquid Bridges in Microgravity

DOI:10.15011//jasma.35.350102
Int. J. Microgravity Sci. Appl. 2018p350102
Author
T. YANO, K. NISHINO, S. MATSUMOTO, I. UENO, A. KOMIYA, Y. KAMOTANI and N. IMAISHI
Organization
Yokohama National University, Japan Aerospace Exploration Agency, Tokyo University of Science, Tohoku University, Case Western Reserve University, Kyushu University
Abstract
This paper reports the overview of Dynamic Surf project conducted in the Japanese Experiment Module Kibo on board the International Space Station (ISS), especially focusing on the experimental conditions, the measurement systems, and the g-jitter effects. Oscillatory Marangoni convection in the liquid bridge is associated with oscillatory motion of the liquid-gas interface due to velocity oscillation inside the liquid bridge, where such a motion is called dynamic surface deformation (DSD). The present project aims at understanding the DSD effect in the transition mechanisms of temperature gradient-driven Marangoni convection in large-scale liquid bridges of high-Prandtl-number fluids through the longterm microgravity experiments on board the ISS. A series of microgravity experiments have been conducted in the period from September 2013 to November 2016 to understand the instability mechanisms and the role of DSD in Marangoni convection.
Keyword(s)
Marangoni convection, Dynamic surface deformation, Micro-imaging displacement meter, G-jitter, High Prandtl number fluid
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Received 10 November 2017, Accepted 9 January 2018, Published 31 January 2018

© The Japan Society of Microgravity Applicaiton

この投稿文は次の言語で読めます: Japanese

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