Abstract
This paper aims to study the effect of different geometrical and electrical parameters, including the voltage, frequency, dielectric thickness, gap width between electrodes, length of electrodes, number of electrodes, and shapes of electrodes, on the induced velocity by the Dielectric Barrier Discharge (DBD) plasma actuators in quiescent air. In addition, the effect of the course of induced velocity evolution in the downstream of actuators has been investigated for different geometries. The streamwise velocity was obtained through the total and static pressure measurement using silicon tubes. The model is a flat plate equipped with a DBD plasma actuator. These experiments were performed for the peak-to-peak voltage range between 8 and 15 kV, and two values of frequency are equivalent to 5 and 10 kHz. The results showed that the multilinear DBD plasma actuator has a maximal induced velocity in the same voltage and frequency as of a single DBD plasma actuator. Evaluation of the induced velocity along the streamwise direction for multilinear, serpentine, and horseshoe actuators showed that these actuators had more than one induced velocity peak.
Highlights
The ability to actively or passively manipulate a flow field to realize the desired change is of immense technological importance, and this is a definition of flow control from Ghad-El-Hak’s perspective.1 Using small scale devices, such as plasma actuators, can be an active method to produce large-scale changes in the flow field
Plasma actuators have several applications in different industries, such as transition delay,6 noise suppression, turbulence augmentation, and aerodynamic flow control7–9 composed of lift enhancement,10,11 drag reduction,3 separation postponement,12–14 and Vortex Generators (VGs)
Outcomes are discussed from a parametric perspective by pointing out to reach the maximum induced velocity by the dielectric barrier discharge (DBD) plasma actuator
Summary
The ability to actively or passively manipulate a flow field to realize the desired change is of immense technological importance, and this is a definition of flow control from Ghad-El-Hak’s perspective. Using small scale devices, such as plasma actuators, can be an active method to produce large-scale changes in the flow field. Using small scale devices, such as plasma actuators, can be an active method to produce large-scale changes in the flow field. Plasma actuators refer to a broad class of devices based on using atmospheric pressure electrical discharges. The class of discharges may include corona discharges, Dielectric Barrier Discharges (DBDs), glow discharges, such as One Atmosphere Uniform Glow Discharge Plasma (OAUGDP), and arc discharges.. Extensive studies have been conducted concerning dielectric barrier discharge (DBD) plasma actuators for flow control. Plasma actuators have several applications in different industries, such as transition delay, noise suppression, turbulence augmentation, and aerodynamic flow control composed of lift enhancement, drag reduction, separation postponement, and Vortex Generators (VGs). The main advantages of these actuators include lightweight, a fast time response for unsteady applications, a fully electronic system without any moving part, the possibility to employ without the addition of cavities or holes on the surface, the efficient conversion of the input power without parasitic losses when properly optimized, and the convenient process of simulating the phenomenon in numerical flow solvers. Plasma actuators have several applications in different industries, such as transition delay, noise suppression, turbulence augmentation, and aerodynamic flow control composed of lift enhancement, drag reduction, separation postponement, and Vortex Generators (VGs).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
