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在不同试验风速下,通过风洞天平测力试验,研究了纳秒脉冲介质阻挡放电等离子体激励频率和激励电压对三角翼模型流动控制效果的影响。研究表明:激励频率和激励电压是等离子体流动控制效果的重要影响因素,在所研究的激励频率和激励电压范围中,当激励频率f=200Hz、激励电压为13kV时,等离子体激励可有效抑制三角翼前缘涡分离,流动控制效果最佳。试验风速30m/s时,最大升力系数由1.32增大到1.45,增大9.8%,最大升阻比提高2.9%;试验风速45m/s时,最大升力系数由1.33增大到1.45,增大9.0%,最大升阻比提高0.64%。
The effect of excitation frequency and excitation voltage of Dielectric Barrier Discharge Plasma on the flow control of delta wing model was studied by wind tunnel balance force test at different wind speeds. The results show that the excitation frequency and excitation voltage are important influencing factors of plasma flow control. In the investigated excitation frequency and excitation voltage range, the plasma excitation can be effectively suppressed when the excitation frequency is f = 200Hz and the excitation voltage is 13kV Delta wing front vortex separation, the best flow control. When the test wind speed is 30m / s, the maximum lift coefficient increases from 1.32 to 1.45, increases by 9.8% and the maximum lift-drag ratio increases by 2.9%. When the test wind speed is 45m / s, the maximum lift coefficient increases from 1.33 to 1.45 and increases by 9.0 %, The maximum lift-drag ratio increased by 0.64%.