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首页> 外文期刊>Transactions of the Japan society for aeronautical and space sciences >Numerical analysis of the rarefied plume from an arcjet thruster: effect of the Nozzle exit shape
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Numerical analysis of the rarefied plume from an arcjet thruster: effect of the Nozzle exit shape

机译：来自Arcjet推进器的稀薄羽流的数值分析：喷嘴出口形状的影响

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摘要

The plume flow field of an arcjet thruster with hydrazine decomposed gas an the propellant has been numerically analyzed to reveal a backflow field, using Direct Simulation Monte Carlo (DSMC). Hydrazine decomposed gas is approx- imated by a mixture of gas composed of N_2, H_2, and H. Four different nozzle lip shapes have been prepared to investigate their effects on the backflow, and species existing in the backflow have also been examined. The present results of mass flux at various angles measured from the plume axis have been compared with experiments, and a qualitatively fairly good agreement has been obtained.
机译：使用直接模拟蒙特卡洛（DSMC）对带有肼分解的气体和推进剂的电弧喷射推进器的羽流场进行了数值分析，以揭示回流场。肼分解后的气体由N_2，H_2和H组成的混合气体近似。准备了四种不同的喷嘴唇形以研究其对回流的影响，还检查了回流中存在的物质。从烟羽轴测得的各种角度的质量通量的当前结果已与实验进行了比较，并且在质量上取得了很好的一致性。

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