Airfoil Flow Experiment on the Duty Cycle of DBD Plasma Actuator
Airfoil Flow Experiment on the Duty Cycle of DBD Plasma Actuator
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DOI：
10.2514/6.2009-531
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发表时间：
2009-01
期刊：
影响因子：
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通讯作者：
K. Asada;Y. Ninomiya;A. Oyama;K. Fujii
中科院分区：
文献类型：
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作者：
K. Asada;Y. Ninomiya;A. Oyama;K. Fujii
通过翼型低速风洞实验，研究了具有突发波（占空比）的介质阻挡放电（DBD）等离子体激励器的参数。本文讨论了脉冲串频率f、输入电压正弦波频率fbase和脉冲串比BR对失速控制的影响。实验在Rec= 44，000、63，000的条件下进行。将该作动器应用于NACA 0015翼型，采用烟丝法显示了翼型绕流场，并采用多点定常测压法测量了翼型表面压力。结果表明，在本实验条件下，f和fbase越大，分离控制效果越好; BR越小，输入能量越少，分离控制能力越强。在现有条件下，最佳无量纲爆轰波频率F为9.1。该结果与Sidorenko等人的结果具有相同的趋势。
The parameters of DBD (Dielectric Barrier Discharge) plasma actuator with burst wave (duty cycle) are investigated by the low speed wind tunnel experiment for airfoil. In this paper, influence of burst frequency f, input voltage sine wave frequency fbase and burst ratio BR on the stall control are discussed. The experiments are conducted with the conditions Rec=44,000, 63,000. The actuator is applied to NACA0015 airfoil and then flow-fields around the airfoil are visualized by the smoke wire method and pressure around its surface is measured by the multipoint steady pressure measurement. The results show that within the present experimental conditions, the higher f and fbase are more effective in the separation control and the smaller BR has the stronger separation control capability in spite of less input energy. In present conditions, the optimum dimensionless burst wave frequency F is 9.1. This result shows the same tendency as the result of Sidorenko, et al.