Nonlinear Dynamics of Levitated Droplet

Int. J. Microgravity Sci. Appl. 2013p042
Author
Yutaka ABE, Satoshi MATSUMOTO , Tadashi WATANABE, Katsuhiro NISHINARI,Hiroyuki KITAHATA, Akiko KANEKO, Koji HASEGAWA, Rui TANAKA, Kuniharu SHITANISHI and Sou SASAK
Organization
University of Tsukuba, Japan Aerospace Exploration Agency, Research Institute of Nuclear Engineering, The University of Tokyo, Chiba University, Kogakuin University
Abstract
It is expected to manufacture new materials with containerless processing by levitation technique. However, it is indicated that the levitated droplet with levitation technique has nonlinear behavior. In this study, nonlinear dynamics of the levitated droplet is experimentally and analytically investigated. The levitation experiments with electrostatic levitator and the ultrasonic levitator are conducted under the normal gravity condition. Based on the experimental results, theoretical and numerical analyses are conducted to clarify the nonlinear dynamics of the levitated droplet. Furthermore, new technique to measure the viscosity in high viscosity region is proposed.
Keyword(s)
Electrostatic levitation, Ultrasonic levitation, Nonlinear dynamics, Flow field
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