University of Tsukuba
University of Tsukuba
University of Tsukuba
Japan Aerospace Exploration Agency
University of Tokyo
University of Tokyo
Japan Atomic Energy Research Institute
出版者
宇宙航空研究開発機構宇宙科学研究本部
出版者(英)
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
雑誌名
宇宙利用シンポジウム 第23回 平成18年度
雑誌名(英)
Space Utilization Research: Proceedings of the Twenty-third Space Utilization Symposium
ページ
153 - 156
発行年
2007-03
抄録(英)
It is expected to manufacture new materials with containerless processing under the micro-gravity environment in space. In order to achieve the containerless processing, it is necessary to levitate a large droplet. If the levitated droplet is large, the surface of the levitated droplet nonlinearly and dynamically deforms and vibrates in space. In the present working group, nonlinear dynamics of the levitated droplet surface and its internal flow are experimentally and analytically investigated. The levitation experiments with the ultrasonic levitation apparatus and electrostatic levitation apparatus are conducted under the normal gravity condition and micro-gravity condition with aircraft. Based on the experimental results, theoretical and numerical analyses are conducted to clarify the nonlinear dynamics of the surface deformation, vibration and oscillation, as well as the internal flow of the levitated droplet in space.