基于电晕放电的离子风推进装置推力性能  

On the thrust performance of ionic wind propulsion device based on corona discharge

作　　者：刘宇曦 廖胤权 耿金越[3] 孙素蓉[1] 王海兴[1] LIU Yuxi;LIAO Yinquan;GENG Jinyue;SUN Surong;WANG Haixing(School of Astronautics,Beihang University,Beijing 100191,China;School of Future Aerospace and Technology Shenyany Honors College,Beihang University,Beijing 100191,China;Beijing Institute of Control Engineering 100094,Beijing,China)

机构地区：[1]北京航空航天大学宇航学院,北京100191 [2]北京航空航天大学未来空天技术学院/高等理工学院,北京100191 [3]北京控制工程研究所,100094

出　　处：《南昌大学学报（理科版）》2022年第2期154-159,共6页Journal of Nanchang University(Natural Science)

基　　金：国家自然科学基金资助项目(12175011,11735004,11702021);国防基础科研项目(JCKY2018203B029)。

摘　　要：基于电晕放电的离子风推进装置的推力性能进行了实验研究。采用线-箔、线-平行箔和针-箔三种不同的电极结构,研究了外加电压和电极结构对离子风推进装置推力的影响。结果表明,对于线-箔结构,电晕放电的起始电压随着电极导线半径的增加而增加,装置的推力随着外加电压的升高而增加。在相同的外加电压下,具有多个收集极的线-平行箔结构产生的推力大于线-箔结构产生的推力,而针-箔结构产生的推力亦高于线-箔结构获得的推力。对应的静电场数值模拟结果表明,不同的电极结构改变了电场的空间分布,进而影响了离子风推进装置的推力。进一步的优化设计应综合考虑发射极附近的局部电场以及发射极和收集极之间的空间电场的组合效应,以提升离子风推进装置推力性能。Thrust performance of ionic wind propulsion devices based on corona discharge was experimentally studied.Three different electrode structures,wire-foil,wire-parallel foil and pin-foil,were used to study the effects of the applied voltage and electrode structure on the device thrust.The results showed that for the wire-foil structure,the onset voltage of corona discharge increases with the increase of wire radius,and the device thrust increases with the increase of applied voltage.At the same applied voltage,the thrust generated by the wire-parallel foil structure with multiple collection electrodes was higher than that of the wire-foil structure,and the thrust generated by the needle-foil structure was also higher than that of the conventional wire-foil structure.Numerical simulations of the corresponding electrostatic fields showed that the different electrode structures changed the spatial distribution of the electric field,which in turn affects the thrust of the ionic wind propulsion device.Further optimization of the design should consider the combined effect of the local electric field near the emitter and the overall electric field between the emitter and collector to achieve an increase in the thrust effect of the ionic wind propulsion device.

关 键 词：离子风推进 电晕放电 空间电场分布 电极几何结构 

分 类 号：V19[航空宇航科学与技术—人机与环境工程]