C-325 空気取込み式イオンエンジンの空気取込み性能の数値解析

概要

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The air-breathing ion engine (ABIE) is a new type of electric propulsion system to be used to compensate the aerodynamic drag of the satellite orbiting at extremely low altitudes. 140 to 240km. To save the propellant mass for a long operation lifetime, it inhales the high-speed low-density atmosphere surrounding the satellite and use it as the propellant of ion engines. Since feasibility and performance of the ABIE depend strongly on the compression ratio and the air-intake efficiency, numerical analysis has been performed by means of the direct-simulation Monte-Carlo method to clarify the characteristics of the air-intake performance in highly rarefied flows. Influences of the aspect-ratio of the air-intake duct, the angle of attack, and the flight altitude are investigated.
日本流体力学会の論文
2003-07-28