摘要
设计了一种用于高超声速流动控制的等离子体直流电弧激励器,运用多物理场有限元方法对激励器的工作特性进行了数值模拟,得到了激励器准确热源分布和不同工况下电势、温度等的分布情况。其中,表面电弧激励器在电流7 A、阴阳极距离3.5 mm时在阴极表面最高能得到2.6905×1010 W/m3的热源值。运用有限体积方法对激励器的斜坡减阻效果进行了数值模拟,得到马赫数为7时总阻力系数最多减小32%的结论。
A plasma arc actuator was designed,and the working characteristics of the actuator were numerically simulated by using a finite element method of multiphysics.We obtained the accurate heat source distribution,and the distribution of the electric potential,temperature under different working conditions.The maximum heat source value of 2.6905×1010 W/m3 can be obtained on the cathode surface of the surface arc actuator when the current is 7 A and the distance between anode and cathode is 3.5 mm.The finite volume method was used to numerically simulate the drag reduction effect of the actuator on a wedge,and it was found that the drag coefficient at Mach number 7 decreased by up to 32%.
作者
袁野
赵青
陈伦江
薄勇
YUAN Ye;ZHAO Qing;CHEN Lunjiang;BO Yong(University of Electronic Science and Technology of China,Chengdu 611731,China)
出处
《宇航总体技术》
2020年第4期46-53,共8页
Astronautical Systems Engineering Technology
关键词
等离子体减阻
电弧放电
高超声速流动控制
数值模拟
Plasma drag reduction
Arc discharge
Hypersonic flow control
Numerical simulation
作者简介
袁野(1983-),女,博士在读,主要研究方向为等离子体减阻。E-mail:494050711@qq.com
