Investigation of the DBD Plasma Effect on Flat Plate Flow

YU Jianyang(俞建阳); LIU Huaping(刘华坪); XU Dimeng(徐迪孟); CHEN Fu(陈浮)

doi:10.1088/1009-0630/16/3/05

Plasma Science and Technology > 2014 > 16(3): 197-202. > DOI: 10.1088/1009-0630/16/3/05

YU Jianyang(俞建阳), LIU Huaping(刘华坪), XU Dimeng(徐迪孟), CHEN Fu(陈浮). Investigation of the DBD Plasma Effect on Flat Plate Flow[J]. Plasma Science and Technology, 2014, 16(3): 197-202. DOI: 10.1088/1009-0630/16/3/05

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Investigation of the DBD Plasma Effect on Flat Plate Flow

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Funds: supported by National Natural Science Foundation of China (No.50976026) and the Science Fundamental Research Funds for the Central Universities of China (No.HIT.NSRIF.2013092)

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Received Date: September 16, 2012

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Abstract

Abstract

Particle image velocimetry experiments and simulations were conducted in this study to clarify the influence of the DBD plasma actuator on the flow over a flat plate. The result shows that the actuator not only effectively leads to a local rise in near-wall velocity, but also efficiently causes a decrease in the displacement thickness of the boundary layer. Actuator-induced vorticity is generated to intensify the energy exchange between the main flow and the boundary layer, and dynamic energy is thus added directly to the low-energy fluid by the actuator. Although the increase in fluid velocity also brings a rise in dynamic energy loss, the energy added by the actuator can cover this to provide growth in the energy of the boundary layer. The plasma actuator presents a better performance when the free-stream velocity is lower.
- plasma,
- PIV,
- near-wall of flat plate,
- simplified model of body force,
- flow characteristics

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References (10)

References

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