On the classification of dielectric barrier discharge plasma actuators: A comprehensive performance evaluation study

Kriegseis, Jochen; Duchmann, Alexander; Tropea, Cameron; Grundmann, Sven

doi:10.1063/1.4817366

Cited by 41 publications

(26 citation statements)

References 59 publications

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“…There have also been studies done with plasma flow control in high-speed applications [11,14,15,16,17,18,19,20,21] . Plasma was generated in numerous ways including DC, AC, RF, microwave, arc, corona, and spark electric discharges, as well as laser induced breakdown, and applied to subsonic and supersonic flow regimes.…”

Section: Introductionmentioning

confidence: 98%

“…Plasma actuators provide many advantages to the aforementioned methods; faster response time, no moving parts, a robust installation flush with the surface, adjustable frequency to match flow characteristics, and the ability to generate unstable disturbances. Plasma flow control has been studied extensively with most studies focusing on AC or pulse driven Surface Dielectric Barrier Discharge (SDBD) plasmas [8,9,10,11,12,13] . These types of discharges are limited by the repetition frequency and power deposition rate.…”

Section: Introductionmentioning

confidence: 99%

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Transient Plasma Impact on Spectra of Flow Disturbances in a Corner Separation Zone at Mach 4.5

Houpt

Hedlund

Gordeyev

et al. 2016

47th AIAA Plasmadynamics and Lasers Conference

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This work was performed to study the effect on flow disturbances in the corner separation zone of a compression surface with a hypersonic boundary layer caused by a weakly ionized transient plasma generated upstream. Schlieren imaging was used to distinguish the corner separation zone for 15°, 20°, and 25° compression ramps at Mach 4.5 (nozzle exit). A Shack-Hartmann wavefront sensor was used to determine the dominant frequencies of flow oscillations at different locations in the flow field and the resulting effect of repetitively pulsed plasma actuators. A significant rise in amplitudes of high-frequency (>80 kHz) flow perturbations was found when pulsing the plasma at a frequency (100 kHz) higher than the natural dominant frequency of the boundary layer (~65 kHz). The plasma effect was negligible when operated below this frequency (50 kHz). PCB pressure sensors were used to determine the dominant frequencies of pressure oscillations present at the surface on the flat plate and compression ramp inside the separation zone. This technique can potentially be used for active control of the boundary layer condition and supersonic flow structure on the compression surface.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Transient Plasma Impact on Spectra of Flow Disturbances in a Corner Separation Zone at Mach 4.5

Houpt

Hedlund

Gordeyev

et al. 2016

47th AIAA Plasmadynamics and Lasers Conference

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“…The mechanical power for the linear actuator P m,L is derived from the kinetic energy of the jet. It was calculated from the measured velocity profiles, by means of the following expression [50]:…”

Section: Jet Velocity and Mechanical Efficiencymentioning

confidence: 99%

Geometry optimization of linear and annular plasma synthetic jet actuators

Neretti¹,

Seri²,

Taglioli³

et al. 2016

J. Phys. D: Appl. Phys.

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The Electro-Hydro-Dynamic (EHD) interaction induced in atmospheric-pressure air by a surface Dielectric Barrier Discharge (DBD) actuator has been experimentally investigated. Plasma Synthetic Jets Actuators (PSJAs) are DBD actuators able to induce an air stream, perpendicular to the actuator surface. These devices can be used in the aerodynamics field to prevent or induce flow separation, modify the laminar to turbulent transition inside the boundary layer, and stabilize or mix air flows. They can also be used to enhance indirect plasma treatment effects, increasing the reactive species delivery rate onto surfaces and liquids. This can play a major role in plasma processing and chemical kinetics modelling, where only diffusive mechanisms are often considered. This paper reports on the importance that different electrode geometries can have on the performance of different PSJAs. A series of DBD aerodynamic actuators designed to produce perpendicular jets have been fabricated on 2-layer printed circuit boards (PCBs). Linear and annular geometries have been considered, testing different upper electrode distances in the linear case and different diameters in the annular one. AC voltage supplied at 11.5 kV peak and 5 kHz frequency has been used. Lower electrodes were connected to ground and buried in epoxy resin to avoid undesired plasma generation on the lower actuator surface.Voltage and current measurements have been carried out to evaluate the active power delivered to the discharges. Schlieren imaging allowed to visualize the induced jets and gave an estimate of their evolution and geometry. Pitot tube measurements were performed to obtain the PSJAs' velocity profiles and to estimate the mechanical power delivered to the fluid.Optimal values of the inter-electrode distance and diameter have been found in order to maximize jet velocity, mechanical power or efficiency. Annular geometries are found to achieve the best performances.

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“…Recent publications [24][25][26] furthermore demonstrated the adverse influence of the airflow on the plasma actuator performance. For details on the classification of plasma actuator performance and the corresponding performance metrics of efficiency for flow control applications please refer to Kriegseis et al 27 The close interrelation between breakdown voltage and ambient pressure is well known from the Paschen curves. 28 Above the Stoletow point, the breakdown voltage decreases with decreasing ambient pressure for a given geometry (see, e.g., Vollrath 29 ).…”

Section: Introductionmentioning

confidence: 99%

Competition between pressure effects and airflow influence for the performance of plasma actuators

Kriegseis¹,

Barckmann²,

Frey³

et al. 2014

Physics of Plasmas

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Articles you may be interested inCapacitances and energy deposition curve of nanosecond pulse surface dielectric barrier discharge plasma actuator Rev. Sci. Instrum. 85, 053501 (2014); 10.1063/1.4871552Effects of pulse polarity on nanosecond pulse driven dielectric barrier discharge plasma actuators Vortical flow control on a conical fore body cross section using an array of pulsed dc actuatorsThe present work addresses the combined influence of pressure variations and different airflow velocities on the discharge intensity of plasma actuators. Power consumption, plasma length, and discharge capacitance were investigated systematically for varying pressure levels (p ¼ 0.1-1 bar) and airflow velocities (U 1 ¼ 0 À 100 m/s) to characterize and quantify the favorable and adverse effects on the discharge intensity. In accordance with previous reports, an increasing plasma actuator discharge intensity is observed for decreasing pressure levels. At constant pressure levels, an adverse airflow influence on the electric actuator performance is demonstrated. Despite the improved discharge intensity at lower pressure levels, the seemingly improved performance of the plasma actuators is accompanied with a more pronounced drop of the relative performance. These findings demonstrate the dependency of the (kinematic and thermodynamic) environmental conditions on the electric performance of plasma actuators, which in turn affects the control authority of plasma actuators for flow control applications. V C 2014 AIP Publishing LLC.

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On the classification of dielectric barrier discharge plasma actuators: A comprehensive performance evaluation study

Abstract: Articles you may be interested inEffect of external flow velocity on momentum transfer of dielectric barrier discharge plasma actuators

Cited by 41 publications

References 59 publications

Transient Plasma Impact on Spectra of Flow Disturbances in a Corner Separation Zone at Mach 4.5

Transient Plasma Impact on Spectra of Flow Disturbances in a Corner Separation Zone at Mach 4.5

Geometry optimization of linear and annular plasma synthetic jet actuators

Competition between pressure effects and airflow influence for the performance of plasma actuators

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