新型介质阻挡放电等离子体激励器的放电与诱导流动特性实验

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Abstract Improving the stability of compressor with plasma flow control required higher induced flow velocity produced by plasma actuator. This paper carried out related experiments to study the electrical and induced flow characteristics by new dielectric barrier discharge (DBD) plasma actuator. Moreover, the effects of the different discharge voltage amplitudes and duty cycles on the induced flow velocity of the new DBD actuator were analyzed. Compared with the characteristics of the traditional DBD actuator, the possibility for improving the stability of compressor was also discussed. The results show that, the traditional DBD actuator has one strong and one weak discharges in one discharge cycle, but the new DBD actuator has two strong discharges. When the discharge frequency is 15kHz, the induced flow velocity of the new DBD actuator is smaller than that of the traditional DBD actuator under low voltage, while it is bigger under high voltage. The maximum induced flow velocity of the new DBD actuator can increase to 4.7m/s, so the flow of compressor can be better controlled. Both induced flows produced by two actuators are turbulent flow. The turbulence of induced flow rises with the increase of voltage, and the turbulence of new DBD actuator is stronger at high voltage. Therefore it can promote the mixing between the main flow and boundary layer. With the fixed discharge voltage amplitude and frequency, the induced flow velocities of the two types of DBD actuator ascend linearly with the increase of cycle duty.

Key words： Plasma flow control, particle image velocimetry, dielectric barrier discharge, induced flow velocity, duty cycle, unsteady excitation

Received: 24 June 2016 Published: 03 January 2017

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O53

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	Articles by authors
	Wu Yangyang
	Jia Min
	Wang Weilong
	Zhang Yunwei
	Li Yinghong

Cite this article:

Wu Yangyang,Jia Min,Wang Weilong等. Experimental Research on the Discharge and Induced Flow Characteristics of a New Dielectric Barrier Discharge Plasma Actuator[J]. Transactions of China Electrotechnical Society, 2016, 31(24): 45-53.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I24/45

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