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Experimental Investigation of the Effects of Various Plasma Actuator Configurations on Lift and Drag Coefficients of a Circular Cylinder Including the Effects of Electrodes

引用

Chinese Journal of Aeronautics 2012年第3期25卷 311-324页

作者： siavash tabatabaeian Masoud MIRZAEI Asghar SADIGHZADEH Vahid DAMIDEH Abdollah SHADARAM School of Aerospace Engineering K. N. Toosi University of Technology Atomic Energy Organization of Iran (AEOI) School of physics Shahid Beheshti University School of Mechanical Engineering K. N. Toosi University of Technology

In this paper, the effects of the existence of plasma actuator electrodes and also various configurations of the actuator for controlling the flow field around a circular cylinder are experimentally investigated. The cylinder is made of PVC （Polyvinyl Chloride） and considered as a dielectric barrier. Two electrodes are fiush-mounted on the surface of the cylinder and are connected to a DC high voltage power supply lbr generation of electrical discharge. Pressure distribution results show that the existence of the electrodes and also the plasma are able to change the pressure distribution around the cylinder and consequently the lili and drag coefficients. It is found that the effect of the existence of the electrodes is comparable with the effect of plasma actuator in con- trolling the flow field around the cylinder and this effect is not reported by other researchers. Eventually it is concluded that the existence of the electrodes or any extra obiects on the cylinder and also the existence of the plasma are capable of changing the flow field structure around the cylinder so that the behavior of the lift and drag coefficients of the cylinder will be changed significantly.

关键词： plasma actuator DC high voltage power supply generalized glow regime flow control wind tunnel

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