Abstract
Marangoni convection, driven by interfacial instability due to a surface tension gradient, presents a significant problem in the crystal growth process. To achieve better materials processing, it is necessary to suppress and control this convection, especially in crystal growth using Liquid Encapsulated Czochralski techniques in which the melt is encapsulated in an immiscible medium. Marangoni convection can occur at the liquid-liquid interface and at the gas-liquid free surface. Buoyancy driven convection can also affect and complicate the flow. The present report studied Marangoni convection in a two-liquid layer system in an open and enclosed cavity. Flow in the cavity was subjected to a horizontal temperature gradient. Interactive flow near the liquid-liquid interface was measured by the Particle Image Velocimetry (PIV) technique. The measured flow field is in good agreement with numerical predictions.
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Satoshi Someya: He received his Ph. D. degree in Nuclear Engineering in 1998 from University of Tokyo, then worked as a Research Fellow of New Energy and Industrial Technology Development Organization (NEDO) (1998–2000) in the Mechanical Engineering Laboratory of AIST. He has worked in National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba as a temporary researcher. He is a member of Thermal Engineering Research Group. His research interests are Crystal Growth, CO2 sequestration, Flow Induced Vibration and Flow Visualization.
Tetsuo Munakata: He received his Ph.D. in Mechanical Engineering Department, the University of Tokyo in 1988. After completion his Ph.D. program, he has been a stuff of Mechanical Engineering Laboratory, AIST, MITI, and currently is a Group Leader of Thermal Engineering Research Group, Institute for Energy Utilization, AIST. His research interests are crystal growth, thermal phenomena under external force field and numerical simulation.
Masahiro Nishio: He received his MSc (Eng) in Chemical Engineering in 1987 from Yokohama National University. He also received Ph.D. in Chemical Engineering in 1990 from Yokohama National University, then worked as a researcher for Mechanical Engineering Laboratory, AIST, MITI. He has been working in the National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba as a senior research scientist. His research interests are CO2 sequestration technology, Crystal Growth of Gas Hydrate and Flow Visualization.
Koji Okamoto: He received his MSc (Eng) in Nuclear Engineering in 1985 from University of Tokyo. He also received his Ph.D. in Nuclear Engineering in 1992 from University of Tokyo. He worked in Department of Nuclear Engineering, Texas A&M University as a visiting associate professor in 1994. He has been working in the Nuclear Engineering Research Laboratory, University of Tokyo as an associate professor since 1993. His research interests are Quantitative Visualization, PIV, Holographic PIV, Flow Induced Vibration and Thermal-hydraulics in Nuclear Power Plant.
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Someya, S., Munakata, T., Nishio, M. et al. Preliminary study of two immiscible liquid layers subjected to a horizontal temperature gradient. J Vis 6, 21–29 (2003). https://doi.org/10.1007/BF03180961
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DOI: https://doi.org/10.1007/BF03180961