Role of the electric waveform supplying a dielectric barrier discharge plasma actuator
Role of the electric waveform supplying a dielectric barrier discharge plasma actuator
复制标题
DOI：
10.1063/1.4712125
复制
发表时间：
2012-05
影响因子：
4
通讯作者：
N. Benard;E. Moreau
中科院分区：
文献类型：
--
作者：
N. Benard;E. Moreau
本文比较了不同的波形作为输入的介质阻挡放电等离子体激励器的影响，研究在上下文中的等离子体辅助流动控制。的电气方面，等离子体形态，体力生产，和两个组成部分的时间分辨的电风产生在一个单一的交流周期的信号进行了研究。结果表明，方波是最佳的体积力和平均电风力生产，但速度波动增强，通过使用正弦波形。产生的速度的时间分辨测量表明，机电转换机制是准线性的放电附近。
The paper compares the influence of different waveforms as input for a dielectric barrier discharge plasma actuator investigated in context of plasma-assisted flow control. The electrical aspects, the plasma morphology, the body force production, and the two-component time-resolved electric wind produced over a single ac period of signal are investigated. Results shown that square waveform is optimal in terms of body force and mean electric wind production, but the velocity fluctuations are enhanced by using a sinusoidal waveform. The time-resolved measurements of the produced velocity demonstrate that the electromechanical conversion mechanism is quasi-linear in the vicinity of the discharge.