Operational characteristics and discharge mechanisms of quasisteady magnetoplasmadynamic(MPD) arcjet for space propulsion.
Operational characteristics and discharge mechanisms of quasisteady magnetoplasmadynamic(MPD) arcjet for space propulsion.
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用于空间推进的准稳态磁等离子动力（MPD）电弧喷气发动机的运行特性和放电机制。
DOI：
10.1585/jspf1958.64.195
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
T. Yoshikawa
中科院分区：
文献类型：
--
作者：
H. Tahara;T. Sakakibara;Y. Kagaya;T. Yoshikawa
为研制高性能的空间加速器，对磁等离子体动力（MPD）电弧加热发动机的工作性能和电弧结构进行了实验研究。结果表明，电流模式，这强烈依赖于气体种类和放电电流水平，影响推力器的性能。结果表明，在放电室中产生的等离子体被径向压缩，输入功率的50%消耗在阴极区。从等离子体电位分布，一个积极的电压斜率和质量饥饿被发现是目前超过预测的临界电流水平附近的阳极表面。
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.