Advances on aerodynamic actuation induced by surface dielectric barrier discharges

Abstract

Surface Dielectric Barrier Discharge (SDBD) is a well-known technology for active aerodynamic flow control with low power consumption. It is a type of plasma actuation for flow control with no moving parts and very fast response times. Research on SDBD flow control over the years has shown great potential for flow separation, boundary layer transition, drag reductions and suppression of local heating. A major area of research on SDBD flow control lies in increasing the effectiveness of SDBD actuators with new electrode configurations, surface materials, and plasma array designs. This review aims to provide a comprehensive report of research performed on SDBD flow control over the last 2 decades with a focus on SDBD reactor designs. Aspects of SDBD flow control including discharge morphology and actuation mechanism through momentum and energy transfer have been discussed in depth. Additionally, the future of research in SDBD actuated flow control has been explored. This review can serve as the baseline to develop new SDBD reactor designs for specific applications with improved effectiveness and advanced systems.

Distributed compact plasma reactor decontamination for planetary protection in space missions

“…The CPPR reactor panel designs were selected based on their flow actuation capabilities responsible for distributing the ozone generated by them 15,29 . These reactor panel designs are based on the ability of SDBD to induce ionic winds by means of an electrohydrodynamic force which is controlled by the electrode configurations used to generate SDBD 16 . This enables SDBD reactors to act as a momentum source-flow actuation device, eliminating the need for an external flow control device to distribute the SDBD generated ozone.…”

“…4 Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville Fl-32611, USA. * email: subrata@surfplasma.com unique as it causes generation of reactive species while influencing the flow of the surrounding gas without employing any moving parts-making it a widely used technology for active aerodynamic flow control in addition to decontamination applications 15,16 . DBD decontamination occurs through direct contact with discharge or indirect contact with reactive species formed by the discharge 15 .…”

Generation of meter-scale nanosecond pulsed DBD and the intelligent evaluation based on multi-dimensional feature parameter extraction

“…Currently, for conventional DBD reactors with a size of cm, single-point and single-acquisition methods, such as electricity (discharge current) and spectroscopy (emission spectrum), are applied. However, for DBD on meter-scale, the larger discharge area leads to a more obvious spatial distribution of discharge, which is more susceptible to electrode structure, gas-flow disturbance and local overheating [17][18][19]. Traditional evaluation methods such as discharge power calculation, spectral emission intensity, generally are analyzed in a fixed position, which is difficult to reflect the spatio-temporal information of large-scale plasma discharge; although the shooting of discharge images can evaluate the discharge uniformity, the high-resolution information is difficult to be captured for large-scale discharge.…”