Simulation of RF Microdischarges for Microthruster Applications
Simulation of RF Microdischarges for Microthruster Applications
复制标题
微推进器应用的射频微放电仿真
DOI：
10.1109/tps.2011.2158451
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发表时间：
2011
影响因子：
1.5
通讯作者：
L. Raja
中科院分区：
文献类型：
--
作者：
H. Sitaraman;L. Raja
研究了一种基于介电覆盖电极的射频激发微放电微推力器的放电现象。采用自一致的多组分多温度连续体模型来描述推进器内的等离子体，并采用可压缩的Navier-Stokes方程来描述体积流体的流动。结果表明，放电过程中出现了高脉冲微放电，电荷密度约为1020 m-3，气体温度漂移约为200 K。结果验证了射频激励微放电概念在电热微推力器中的应用。
A discharge phenomenon in a radio-frequency (RF)-excited microdischarge-based microthruster with dielectric-covered electrodes is presented. A self-consistent multispecies multitemperature continuum model is used to describe the plasma in the thruster, along with the compressible Navier-Stokes equations for the bulk fluid flow. Results indicate a highly pulsed microdischarge with charge densities of ~1020 m-3 and gas temperature excursions of ~200 K occurring in the discharge during the pulse. The results validate the RF-excited microdischarge concept for electrothermal microthruster applications.