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arXiv 2104.02854physics.plasm-ph
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磁喷管内等离子体流的数值研究

Numerical investigation of internal plasma currents in a magnetic nozzle

Kazuma Emoto, Kazunori Takahashi, Yoshinori Takao

摘要:

采用二维全动力学粒子模拟方法对一台采用磁性喷管的无电极等离子体推力器进行了数值模拟,研究了内部等离子体电流诱导的推力产生过程。结果清楚地表明,$\bf{E} \times \bf{B}$和抗磁电流密度是内部等离子体电流的主要成分。模拟的压力结构很好地再现了实验观察到的结构。不同磁场强度下的结果表明,随着磁场强度的增大,$\bf{E} \times \bf{B}$效应减小,抗磁效应占主导地位,这表明了抗磁效应在推力产生中的重要贡献。

英文摘要:

Two-dimensional fully kinetic particle-in-cell simulations of an electrodeless plasma thruster, which uses a magnetic nozzle, were conducted to investigate the thrust generation induced by the internal plasma current. The results clearly show that the $\bf{E} \times \bf{B}$ and diamagnetic current densities are the major components of the internal plasma current. The simulated pressure structures reproduced the experimentally observed structures well. The results for various magnetic field strengths reveal that the $\bf{E} \times \bf{B}$ effect decreases and the diamagnetic effect becomes dominant with an increase in the magnetic field strength; this demonstrates the significant contribution of the diamagnetic effect in thrust generation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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