Research on the Peristaltic Flow Acceleration Performance of Asynchronous and Duty Cycle Pulsed DBD Plasma Actuation

LI Feng(李峰); GAO Chao(高超); ZHENG Borui(郑博睿); WANG Yushuai(王玉帅)

doi:10.1088/1009-0630/16/9/10

Plasma Science and Technology > 2014 > 16(9): 861-866. > DOI: 10.1088/1009-0630/16/9/10

LI Feng(李峰), GAO Chao(高超), ZHENG Borui(郑博睿), WANG Yushuai(王玉帅). Research on the Peristaltic Flow Acceleration Performance of Asynchronous and Duty Cycle Pulsed DBD Plasma Actuation[J]. Plasma Science and Technology, 2014, 16(9): 861-866. DOI: 10.1088/1009-0630/16/9/10

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Research on the Peristaltic Flow Acceleration Performance of Asynchronous and Duty Cycle Pulsed DBD Plasma Actuation

National Key Laboratory of Science and Technology on Aerodynamic Design and Research, Northwestern Polytechnical University, Xi’an 710072, China

Funds: supported by National Natural Science Foundation of China (No. 51107101) and the Foundation for Fundamental Research of the Northwestern Polytechnical University of China (JC201103)

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Received Date: January 17, 2013

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Abstract

Abstract

Using a plexiglas plate model, the performance of peristaltic flow acceleration in- duced by multiple DBD (dielectric barrier discharge) plasma actuators was studied based on PIV (particle image velocimetry). The asynchronous and the duty cycle pulsed actuation modes were proposed and tested. The velocity fields induced by multiple DBD plasma actuators with different phase angles and duty cycle ratios were acquired and the momentum transfer characteristics of the flow field were discussed. Consequently, the mechanism of the peristalsis-acceleration multi- ple DBD plasma actuation was analyzed. The results show that the peristaltic flow acceleration effect of multiple plasma actuators occurs mainly in paraelectric direction, and the mechanism of peristaltic flow acceleration is ejection pushing effect rather than injection pumping effect. The asynchronous and the duty cycle pulsed actuation modes can, with energy consumption increase of merely 10%, achieve 65% and 42% increase of downstream velocity, and thus are promising in velocity improvement and energy saving.
- peristaltic acceleration,
- DBD plasma,
- asynchronous,
- duty cycle

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References (21)

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