Nanosecond-Pulsed Dielectric Barrier Discharge Plasma Actuator for Airflow Control Along an NACA0015 Airfoil at High Reynolds Number

Moreau, E.; Debien, Antoine; Bénard, Nicolas; Zouzou, Noureddine

doi:10.1109/tps.2016.2603226

Cited by 11 publications

(5 citation statements)

References 27 publications

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“…Step 7: Select a suitable value of T L and T pulse according to Equations ( 11) and (12), and calculate the value of T and D by combining T = 2(T L + T 1 ) and D = T pulse /T. Step 8: Calculate the value of k peak with Equations ( 4), (5), and (10).…”

Section: Parameter Designmentioning

confidence: 99%

“…Due to the micro-discharges, numerous gaseous molecules are dissociated and lots of active particles are generated. Because of this characteristic, different DBD devices are widely used in many fields, such as material surface modification, 4,5 chemistry, [6][7][8] ozone generation, 9,10 harmful gas treatment, 11 aerospace, 12,13 and water purification. 14,15 Theoretical analysis and experimental results show that once the structure of DBD loads and the characteristics of the discharge gas (including gas type and gas concentration) are determined, the characteristics of an excitation voltage applied in DBD loads become one of the key factors affecting the performances of DBD loads.…”

Section: Introductionmentioning

confidence: 99%

“…Due to the micro‐discharges, numerous gaseous molecules are dissociated and lots of active particles are generated. Because of this characteristic, different DBD devices are widely used in many fields, such as material surface modification, 4,5 chemistry, 6–8 ozone generation, 9,10 harmful gas treatment, 11 aerospace, 12,13 and water purification 14,15 …”

Section: Introductionmentioning

confidence: 99%

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A novel LC‐based bipolar pulsed power supply for dielectric barrier discharge excimer lamps

Tang

Chen

Jiang

et al. 2023

Circuit Theory & Apps

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SummaryAn excitation voltage with a high rising rate, falling rate, and idle time simultaneously is beneficial to taking advantage of the potential of dielectric barrier discharge (DBD) loads. However, how to generate this kind of excitation voltage with a simple structure is rarely researched. To address the issue, a novel LC‐based bipolar high‐voltage pulsed power supply is proposed in this paper. The proposed power supply is comprised of an inductance, two capacitances, a step‐up transformer, and two power switches sharing the same ground. By planning the switch sequence of the two power switches, a resonant stage and an idle stage are formed. The resonant stage is used to generate a bipolar pulse excitation voltage on DBD excimer lamps and an idle time in the excitation voltage is generated in the idle stage. The characteristics and the parameters design of the proposed power supply are studied by theoretical analysis. To verify the feasibility of the proposed power supply, an experimental setup is built with a DBD‐type excimer lamp. The experimental results show that the power supply not only better takes advantage of the potential of DBD excimer lamps, but also there is a fine luminous regulation feature for the excimer lamp. Besides these characteristics, the proposed power supply has several other benefits, such as good adaptability to different DBD‐type excimer lamps, a small number of components, and high efficiency.

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Section: Parameter Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A novel LC‐based bipolar pulsed power supply for dielectric barrier discharge excimer lamps

Tang

Chen

Jiang

et al. 2023

Circuit Theory & Apps

View full text Add to dashboard Cite

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“…This has spurred their popularity in recent years (see [8,9] and references therein). The leading edge of an airfoil in stall satisfies this condition, and ns-DBD control of such flows has been well documented [10][11][12][13][14]. It is known that the ns-DBD flow control mechanism is thermal in nature [2,15] and stems from a change in temperature that modifies local flow properties and excites natural flow instabilities [16][17][18].…”

Section: Introductionmentioning

confidence: 98%

A comparative study of Ac-dielectric barrier discharge versus Ns-dielectric barrier discharge plasma actuators in an incompressible turbulent mixing layer

Singh

Little

2020

J. Phys. D: Appl. Phys.

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A comparison between ac-dielectric barrier discharge (DBD) and ns-DBD plasma actuators is performed in a low-speed turbulent mixing layer to assess differences in their control mechanisms (momentum versus thermal). The mean flow response to actuation is matched for the two cases at a single downstream location to gauge scaling of relevant parameters (carrier frequency, energy per pulse, etc). The similarity between local behavior downstream is found to extend to the global flow, both in the mean and fluctuating components. However, the ns-DBD requires approximately six times more electrical energy to achieve the same control as the ac-DBD in this specific flow. An analysis of the flow field very near the splitter plate trailing edge sheds light on the difference in momentum versus thermal actuation mechanisms. A velocity deficit is observed for both actuators, but a thermal bump effect is evident in the ns-DBD case while a near surface jet is observed in the ac-DBD case.

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“…For a little more than ten years, a new approach has consisted of supplying the surface DBD with a pulsed high voltage whose pulse width ranges from a few nanoseconds to a few hundred nanoseconds. The main advantage of this type of discharge is that they can be effective for flow separation control at high Reynolds numbers [16][17][18]. For such discharges, the main phenomenon responsible for manipulating the flow is not the EHD force and the resulting ionic wind, but a rapid variation of the gas temperature within the discharge [19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Streamer propagation and pressure waves produced by a nanosecond pulsed surface sliding discharge: effect of the high-voltage electrode shape

Moreau¹,

Bayoda²,

Bénard³

2020

J. Phys. D: Appl. Phys.

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This paper aims at better understanding nanosecond sliding discharges based on a three-electrode geometry and at studying the effect of the shape of the pulsed high-voltage electrode on their electrical, optical and mechanical properties. Three different electrode shapes are considered: a typical planar electrode with a straight edge, a planar electrode with a sawtooth edge, and a wire electrode. First, we verified that the sliding discharge starts to appear when the potential difference between both air-exposed electrodes exceeds about 25 kV, corresponding to a mean electric strength (potential difference divided by the gap) a little bit higher than 6 kV cm−1, but this value differs slightly depending on the shape of the electrode. Secondly, we highlighted that the current with the wire-based discharge is slightly higher compared to the two others because the streamers are more numerous and they are more uniformly distributed along the wire. Moreover, whatever the electrode shape, intensified charge-coupled device visualizations showed that many streamers initiate from the pulsed high-voltage electrode edge and propagate on the dielectric surface toward the DC voltage electrode at a mean velocity of about 1 mm ns−1. However, the streamer trajectory depends strongly on the electrode shape. Visualizations of the pressure waves induced by the different plasma actuators have been realized with a shadowgraph system. In the presence of a sliding discharge, every streamer is at the origin of three different pressure waves. The first hemispherical pressure wave results from streamer ignition at the edge of the pulsed high-voltage electrode, the head of the streamer acting as a point heat source. The second hemispherical pressure wave is due to the corona-type discharge that ignites from the negative DC high-voltage electrode when the streamer head gets closer. Finally, the third wave is a semi-cylindrical wave as each streamer acts as a line source of heat. To conclude, pressure measurements highlighted that the peak value of the pressure is nearly constant along the spanwise direction of the wire electrode as it presents high fluctuations with the sawtooth electrode, the maximum pressure being measured above the tips, where streamers are localized.

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Nanosecond-Pulsed Dielectric Barrier Discharge Plasma Actuator for Airflow Control Along an NACA0015 Airfoil at High Reynolds Number

Cited by 11 publications

References 27 publications

A novel LC‐based bipolar pulsed power supply for dielectric barrier discharge excimer lamps

A novel LC‐based bipolar pulsed power supply for dielectric barrier discharge excimer lamps

A comparative study of Ac-dielectric barrier discharge versus Ns-dielectric barrier discharge plasma actuators in an incompressible turbulent mixing layer

Streamer propagation and pressure waves produced by a nanosecond pulsed surface sliding discharge: effect of the high-voltage electrode shape

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