大气压下介质阻挡放电等离子体诱导起始涡的实验研究

上海交通大学学报（自然版） ›› 2014, Vol. 48 ›› Issue (08): 1097-1102.

大气压下介质阻挡放电等离子体诱导起始涡的实验研究

张屹，李伟鹏，王福新，向阳，李子佳

（上海交通大学航空航天学院，上海 200240）

收稿日期:2013-11-13 出版日期:2014-08-28 发布日期:2014-08-28
基金资助:
国家自然科学基金资助项目（11202131），第52批博士后基金资助项目（2012M520895）

Experimental Study of Starting Vortex Induced by Atmospheric Dielectric-Barrier-Discharge Plasma

ZHANG Yi,LI Weipeng,WANG Fuxin,XIANG Yang,LI Zijia

(School of Aeronautics and Astronautics, Shanghai Jiaotong University, Shanghai 200240, China)

Received:2013-11-13 Online:2014-08-28 Published:2014-08-28

摘要/Abstract

摘要：

对介质阻挡放电等离子体激励器进行了参数化分析，考察了诱导速度和功率随信号波形、激励电压、信号频率、电极间距等参数变化的规律，同时采用流场显示方法和PIV技术研究等离子体在静止流场中诱导的涡系结构生长和演化过程.结果表明，等离子体通过诱导产生的起始涡存在3种主要的涡系结构，即裸露电极下游的主涡、裸露电极上游的反向涡以及主涡侧下方的二次诱导涡.进一步分析了主涡和反向涡的产生和发展过程，通过和激励器放电电流波形及放电图像的对比分析，揭示了起始涡的产生机理，同时也证实了介质阻挡放电等离子体产生诱导气流机理的正确性.

关键词: 介质阻挡放电等离子体, 起始涡, 主涡, 反向涡

Abstract:

A parametric analysis were performed on a dielectric-barrier-discharge (DBD) plasma actuator to investigate the relationship between the inducedvelocity/power-consumption and the signal wave, voltage, frequency and electrode gap, respectively. Using the particle image velocimetry (PIV) and flow visualization technique, the starting vortices induced by the plasma actuator were observed in the quiescent air, including the downstream primary vortex which is relative to the exposed electrode, the upstream opposite vortex and the secondary vorticity associated with the primary vortex. The development of the primary vortex and the opposite vortex was studied, and the mechanism of the induced starting vortices was discussed by comparing the flow visualization and PIV results with the discharge current wave.

Key words: dielectric-barrier-discharge(DBD), starting vortex, primary vortex, opposite vortex

中图分类号:

V 211.1

张屹，李伟鹏，王福新，向阳，李子佳. 大气压下介质阻挡放电等离子体诱导起始涡的实验研究[J]. 上海交通大学学报（自然版）, 2014, 48(08): 1097-1102.

ZHANG Yi,LI Weipeng,WANG Fuxin,XIANG Yang,LI Zijia. Experimental Study of Starting Vortex Induced by Atmospheric Dielectric-Barrier-Discharge Plasma[J]. Journal of Shanghai Jiaotong University, 2014, 48(08): 1097-1102.

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