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仪器网/ 行业应用/ 解决方案/ 多重介电阻挡放电(DBD)等离子体制动器控制高升力翼型襟

多重介电阻挡放电(DBD)等离子体制动器控制高升力翼型襟

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This work presents preliminary results of flow separation control from the flap of a
high-lift airfoil using a single dielectric barrier discharge (DBD) plasma actuator. Control
effectiveness is investigated for two actuator locations as well as various reduced frequencies,
applied voltages and waveforms. Results show that a single DBD plasma actuator located at
the flap 首lder can slightly increase or reduce the size of the time-averaged separation
bubble over the flap depending on the frequency of actuation. This effectiveness is not
improved by an increase in applied voltage or a change from a sinusoidal to positive
sawtooth waveform for the cases examined. Spatial eigenmodes calculated from twocomponent
PIV using POD show that a single DBD plasma actuator at the flap 首lder can
have a significant effect on the structure of higher order modes. However the corresponding
energy of these modes is low in comparison to the dominant modes in the wake.
Nomenclature
Cp = 德国LaVision PIV/PLIF粒子成像测速场仪 Imager pro X PIV相机 用于粒子成像测速(PIV)的荧光示踪粒子
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