A Plasma Propulsion Concept Based on Direct Ion Acceleration with Beating Electrostatic Waves
A Plasma Propulsion Concept Based on Direct Ion Acceleration with Beating Electrostatic Waves
复制标题
基于直接离子加速和拍打静电波的等离子体推进概念
DOI：
10.2514/6.2010-7107
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
E. Choueiri
中科院分区：
文献类型：
--
作者：
B. Jorns;E. Choueiri
提出并分析了一种等离子体推进的新概念，即利用跳动的静电波(Bew)直接离子加速来增强直线磁斜率聚集在等离子体中产生的线性离子电流。确定了磁斜率聚集中可能出现的粒子轨迹的类型，并显示出在热化离子系综中产生净流。随后证明了Bew通过直接加速而不是离子加热来在磁零点方向上增加这一点的能力，并描述了依赖于这一过程的推进器概念。预计直接离子加速将产生比依靠等离子体加热的概念更好的推进性能，后者要求相对较高的壁面损失。
A new concept for plasma propulsion that relies on using beating electrostatic wave (BEW) direct ion acceleration to augment the linear ion current produced in a plasma by a rectilinear, magnetic slope conguration is presented and analyzed. The types of particle trajectories possible in a magnetic slope conguration are identied and shown to produce a net ow in a thermalized ion ensemble. The ability of BEW to augment this ow in the magnetic null direction by direct acceleration, as opposed to ion heating, is subsequently demonstrated and a thruster concept that relies on this process is described. It is expected that the direct ion acceleration would yield a propulsive performance that is superior to that obtained by concepts that rely on plasma heating, which suer from relatively high wall losses.