Operational characteristics and discharge mechanisms of quasisteady magnetoplasmadynamic(MPD) arcjet for space propulsion.

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  • Tahara Hirokazu
    Department of Mechanical Engineering, Faculty of Engineering Science, Osaka University
  • Sakakibara Takahisa
    Department of Mechanical Engineering, Faculty of Engineering Science, Osaka University
  • Kagaya Yoichi
    Department of Mechanical Engineering, Faculty of Engineering Science, Osaka University
  • Yoshikawa Takao
    Department of Mechanical Engineering, Faculty of Engineering Science, Osaka University

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Other Title
  • 宇宙推進用準定常電磁プラズマジェットの作動特性と放電機構
  • ウチュウ スイシンヨウ ジュン テイジョウ デンジ プラズマ ジェット ノ サ

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Description

Experimental researches on the operational performance and the arc structure of a quasisteady magnetoplasmadynamic (MPD) arcjet was made to develop a high-performanceaccelerator in space. The results showed that the current pattern, which depended strongly on gas species and discharge current levels, influenced the thruster performance. It was found that the plasma produced in the discharge chamber was compressed radially and that 50% on the input power was consumed in the cathode region. From the plasma potential distribution, a positive voltage slope and mass starvation were found to be present near the anode surface beyond the predicted critical current level.

Journal

  • Kakuyūgō kenkyū

    Kakuyūgō kenkyū 64 (2), 195-211, 1990

    The Japan Society of Plasma Science and Nuclear Fusion Research

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