Experimental study on plasma actuation characteristics of nanosecond pulsed dielectric barrier discharge

Hao, Zheng Doctor; Liang, Hua; Chen, Jie; Zong, Haohua; Zhe, Meng; Ke, Xie Li; Li, Yinghong

doi:10.1088/2058-6272/ac35a3

Cited by 10 publications

(8 citation statements)

References 27 publications

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“…Optimizing the actuator geometry [37,38] and the electrical parameters [10,15,30,32,39] can be an effective way to improve the flow control performance of ns-SDBD. It is reported that a negative pulse is more efficient and produces a stronger pressure wave than a positive one under low dissipated power [15,32], and the deposition energy shows a strong dependency on the thickness of the dielectric [29].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of streamer, pressure wave, and vortex induced by nanosecond pulsed surface dielectric barrier discharges

Zhang,

Tang,

Wang

et al. 2024

Plasma Sources Sci. Technol.

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In this study, a two-dimensional fluid model is employed to simulate the streamer, pressure wave, and vortex in surface dielectric barrier discharge driven by nanosecond pulse voltage (ns-SDBD). It comprises a numerical model with two interconnected modules: discharge dynamics and gas flow dynamics. These modules are coupled through the physical variables including ‘EHD force’, ‘thermal source’, ‘velocity field’, ‘gas temperature’, and ‘gas pressure’. Our research primarily focuses on the underlying physical mechanisms of pressure waves and vortices for plasma-based flow control. The generation of pressure waves is attributed to the rapid gas heating by pulsed discharge, whereas the formation and development of the vortex are related to the ionic wind (EHD effect) provided by the plasma. To thoroughly understand and optimize flow control performance, an investigation into the effects of various discharge parameters, such as voltage amplitude and polarity, is conducted. Additionally, multiple single SDBD modules are arranged in series, each featuring a dual three-electrode configuration. Subsequently, the dynamic behaviors of multiple streamers, pressure waves, and vortices, along with their interactions, are explored.

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Section: Introductionmentioning

confidence: 99%

Numerical simulation of streamer, pressure wave, and vortex induced by nanosecond pulsed surface dielectric barrier discharges

Zhang,

Tang,

Wang

et al. 2024

Plasma Sources Sci. Technol.

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“…Atmospheric pressure air dielectric barrier discharge (APADBD) is a burgeoning method for nonthermal plasma generation and has been applied to gas-phase conversion [1][2][3], plasma-assisted combustion [4][5][6], plasma medicine [7][8][9], active flow control [10][11][12], etc. Typically, an alternating current (AC) supply with a frequency of a few kHz is applied to excite APADBD [13].…”

Section: Introductionmentioning

confidence: 99%

Experimental and simulated investigation of microdischarge characteristics in a pin-to-pin dielectric barrier discharge (DBD) reactor

He¹,

Peng²,

Jiang³

et al. 2022

Plasma Sci. Technol.

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Both experimental and simulated studies of the micro-discharge (MD) are carried out in a DBD with a pin-to-pin gap of 3.5 mm, ignited by a sinusoidal voltage with a peak voltage of 10 kV and a driving frequency of 5 kHz. A statistical result has shown that the probability of the single current pulse in the positive half-period (HP) reaches 73.6% under these conditions. Experimental results show that the great intensity of the luminous is concentrated on the dielectric surface and the tip of the metal electrode. A one-dimensional (1D) plasma fluid model is implemented by coupling the species continuity equations, electron energy density equations, Poisson equation, and Helmholtz equations to analyze the MD dynamics on the micro-scale. The simulated results are in good qualitative agreement with the experimental results. The simulated results show that the MD dynamics can be divided into three phases: the Townsend phase, the streamer propagation phase, and the discharge decay phase. During the streamer propagation phase, the electric field and electron density increase with the streamer propagation from the anode to the cathode, and their maximal values reach 625.48 Td and 2.31×1019 m−3 as well as 790.13 Td and 3.58×1019 m−3 in the positive and negative HP, respectively. Furthermore, a transient glow-like discharge is detected around the anode during the same period of the streamer propagation. The formation of transient glow-like discharge is attributed to electrons drifting back to the anode, which is driven by the residual voltage between the air gap.

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“…Based on a combination of high-speed schlieren registration and infrared thermography studies were conducted on the influence of a number parameters (trigger voltage, repetition rate, electrode size) on discharge characteristics, induced the NS-DBD discharge flow fields and thermal characteristics [5]. The electrode surface temperature distributions with a changing flow field for 120 s (the plasma actuator operating time -induced by NS-DBD) were recorded using thermal imaging.…”

Section: Introductionmentioning

confidence: 99%

The Discharge Heated Channel Region Visualization based on Thermal Imaging Registration

Znamenskaya¹,

Karnozova²,

Kuli-Zade³

2022

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The paper presents the results of non-stationary thermal fields panoramic visualization, based on infrared thermography at the STDO-3 device (Shock Tube -Discharge -Optics) of the Lomonosov Moscow State University, Faculty of Physics. The main purpose of the work was to study the heating and cooling processes in a rectangular channel region under the influence of pulsed surface high-current discharges sliding over the dielectric surface, taking into account the supersonic flow in a channel with an obstacle. A pulsed surface discharge initiated in a 24x48 mm2 channel was studied in a quiescent air and in a high-speed flow behind the shock. When initiated in the flow (the delay time after the shock wave passage is up to 0.4 ms), the discharge plasma is localized mainly in the downwind region behind the reverse step (rectangular ledge). The discharge produces a pulsed (submicrosecond) contracted energy input with a 30 mm length in the localization zone. As a result, there is a short-term heating of the section of the channel wall adjacent to it. Using infrared (IR) thermographic imaging through the chamber quartz windows transparent to IR radiation, it was found that in the discharge chamber the discharge plasma noticeably heats the surface of the flat channel wall. Based on the obtained data of panoramic visualization with an exposure time up from 200 µs, we studied the channel walls cooling process both in quiescent air and in flow at different oncoming gas velocities -in the downwind region behind the dielectric ledge.

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Experimental study on plasma actuation characteristics of nanosecond pulsed dielectric barrier discharge

Cited by 10 publications

References 27 publications

Numerical simulation of streamer, pressure wave, and vortex induced by nanosecond pulsed surface dielectric barrier discharges

Numerical simulation of streamer, pressure wave, and vortex induced by nanosecond pulsed surface dielectric barrier discharges

Experimental and simulated investigation of microdischarge characteristics in a pin-to-pin dielectric barrier discharge (DBD) reactor

The Discharge Heated Channel Region Visualization based on Thermal Imaging Registration

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