Title of article :
Experimental Investigation of Separation Control on a NACA0024 Airfoil using Stationary and Non-Stationary AC-Dielectric Barrier Discharge Plasma Actuator
Author/Authors :
Tathiri ، G. - Islamic Azad University, Zanjan Branch , Parishani ، H. - University of California Irvine , Pouryoussefi ، S. G. - K.N. Toosi University of Technology , Esmaeilzadeh ، E. - University of Tabriz , Mirsajedi ، S. M. - Shahid Beheshti University , Mirzaei ، M. - K.N. Toosi University of Technology , Khatibzadeh ، N. Beckman Laser Institute and Medical Clinic
Abstract :
An experimental study of stationary and non-stationary dielectric barrier discharge (DBD) plasma actuator is presented to control the flow around a NACA0024 airfoil. First, an induced air velocity of ~5 m/s is generated on a flat plate in still air using an AC-DBD actuator to find the optimal setup of the actuator (voltage, frequency, electrode width and gap size). Using the same actuator in the optimal position/setup on a NACA0024 airfoil at Reynolds number of 0.48×10^6, we are able to increase the stall angle of the airfoil to 18°, compared to 16° in no-actuator state. Furthermore, during the plasma actuation, the lift is increased by up to 5%. We show that non-stationary actuation, while yielding a performance similar to stationary actuation, leads to a considerable reduction of ~51% in plasma power consumption.
Keywords :
Flow control , Induced flow , DBD plasma actuator , NACA0024 Airfoil , Separation point.
Journal title :
Journal of Applied Fluid Mechanics
Journal title :
Journal of Applied Fluid Mechanics
