Conference Paper 大気圏再突入時におけるESA ARD周りのプラズマ流・電磁波解析
Plasma Flow and Electromagnetic Waves Analysis around ESA ARD during Atmospheric Reentry

中里, 玲王  ,  高橋, 裕介  ,  大島, 紳行  ,  Nakasato, Reo  ,  Takahashi, Yusuke  ,  Oshima, Nobuyuki

In the phase of planetary atmospheric reentry, a strong shock wave is generated and the strong aerodynamic heating arrears. Gas temperature in front of the vehicle exceeds 10,000K and chemical reactions occur behind the shock wave. Because the reentry vehicle is damaged by the aerodynamic heating, accurate evaluation of the aerodynamic heating in plasma flow is necessary for design and development of the vehicle. In addition, radio frequency by blackout can occur during reentry. In terms of the estimation of the communicationable time, to reveal electromagnetic behavior is essential. In this paper, three-dimensional numerical analysis was conducted to consider an angle of attack and unstructured grids were used. Moreover electromagnetic waves analysis was conducted by using the FD2TD (Frequency-Dependent Finite Difference Time Domain) method. We reproduced the actual flow field around ARD (Atmospheric Reentry Demonstrator) which was launched by the European Space Agency (ESA) in 1998 and investigated the flow properties and the plasma attenuation. As a result of this study, physical properties were obtained by CFD and electromagnetic waves behavior around ARD was revealed.
会議情報: 第47回流体力学講演会/第33回航空宇宙数値シミュレーション技術シンポジウム (2015年7月2日-3日. 東京大学生産技術研究所), 目黒区, 東京
形態: カラー図版あり
Meeting Information: 47th Fluid Dynamics Conference /the 33rd Aerospace Numerical Simulation Symposium (July 2-3, 2015. Institute of Industrial Science , the University of Tokyo), Meguro, Tokyo, Japan
Physical characteristics: Original contains color illustrations

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