Plasma actuators for active flow control based on a glow discharge

14th High-Tech Plasma Processes Conference

Kühn, M.^1 ; Kühn-Kauffeldt, M.^1 ; Schein, J.^1 ; Belinger, A.^2

Laboratory for Plasma Technology, University of the Federal Armed Forces Munich, Germany^1

LAPLACE, Universit de Toulouse, CNRS, INPT, UPS, France^2

关键词: Active flow control;    Dielectric barrier discharges;    High flow velocity;    High frequency HF;    Impulse bit;    Low Reynolds number;    Plasma actuator;    Tollmien-Schlichting waves;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/825/1/012007/pdf
DOI  :  10.1088/1742-6596/825/1/012007

来源: IOP

【 摘 要 】

In this work a glow discharge based active flow control for high flow velocities and low Reynolds numbers is presented. Unlike common plasma actuators such as dielectric barrier discharge (DBD) or spark jets, this actuator uses small impulse bits at frequencies. The actuator is optimized for frequencies up to 40 kHz to counter Tollmien Schlichting wave effects and so reduce overall air foil drag. Several measurements to prove the non-eroding effect of the actuator and the electrical properties were performed. It was found that the actuator is capable of operating at high frequencies without measurable erosion.