Volume Diffuse Dielectric Barrier Discharge Plasma Produced by Nanosecond High Voltage Pulse in Airflow

Qi, Haicheng; Wei, Gao; Fan, Zhengxiu

doi:10.1088/1009-0630/18/5/13

Cited by 19 publications

(16 citation statements)

References 30 publications

(23 reference statements)

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“…When the airflow is introduced between the electrodes, the charged particles are affected by the transport effect of airflow. These particles move along the direction of the incoming airflow or are even blown out the discharge area [2,3,15,44]. In this paper, the time between two pulses is about (0-3)×10 −4 s (PRF of 0-3800 Hz) and the characteristic time of the airflow through the electrodes is (0-8)×10 −4 s (electrode characteristic length/airflow velocity).…”

Section: Discussion Of the Nonlinearity Phenomena Of The Initiating A...mentioning

confidence: 81%

“…The influence of airflow on discharge working boundary has also received attention, mostly focusing on the study of the breakdown characteristics of discharge [6,7,[11][12][13][14][15][16][17][18][19][20]. The position of discharge breakdown moves along the airflow direction, because the airflow will transport the residual particles of the micro-discharge channels [7,11].…”

Section: Introductionmentioning

confidence: 99%

“…When airflow exists, in addition to natural convection and radiation to transfer energy, constrained convection with greater energy loss is also added [15,16], making Joule heat unable to balance this dissipated energy. In the above studies, it is found that the space charge, surface charge, Joule heating energy, gas density and other factors that sustain the discharge are affected by the airflow, causing the working boundary to change.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nonlinearity of initiating and extinguishing boundaries of DBDs with airflows

Tang¹,

Tang²,

Zhou³

et al. 2021

Plasma Sci. Technol.

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Various applications of volume dielectric barrier discharges (DBDs) with airflows have attracted significant attention such as in the fields of plasma medicine, surface modification, ozone synthesis, etc. In this work, the nonlinearity characteristics of DBDs in initiating and extinguishing boundaries with airflows are experimentally investigated. It is found that the difference between initiating pulse repetition frequencies (PRFs) and extinguishing PRFs is affected by the addition of airflows. A hysteresis region is produced between these two PRFs. A topological rule of Thom’s classification theorem is proposed to investigate the hysteresis phenomenon of discharges with airflows. It is concluded that the discharge state is dependent on the operation route. The discharge state would transit from initiating to extinguishing, or in the opposite direction, while passing along a specific operation route. Based on the topological method, two nonlinear laws of discharge structure transition under the typical operation routes are predicted and verified in the discharge experiments.

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Section: Discussion Of the Nonlinearity Phenomena Of The Initiating A...mentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinearity of initiating and extinguishing boundaries of DBDs with airflows

Tang¹,

Tang²,

Zhou³

et al. 2021

Plasma Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…As the discharge tends to reignite at the position where MD remnants accumulate, the redistribution of MD remnants can affect the space-time distribution of discharge filaments, [31] and even promote the transition from filamentary discharge to diffuse discharge at certain conditions. [32,33] It is, thus, worth exploring how to realize and maintain large-volume diffuse discharge in flowing air. Besides, the discharge uniformity at different cycles in flowing air has rarely been studied.…”

Section: Introductionmentioning

confidence: 99%

“…As the discharge tends to reignite at the position where MD remnants accumulate, the redistribution of MD remnants can affect the space–time distribution of discharge filaments, [ 31 ] and even promote the transition from filamentary discharge to diffuse discharge at certain conditions. [ 32,33 ]…”

Section: Introductionmentioning

confidence: 99%

Effect of airflow on the discharge uniformity at different cycles in the repetitive unipolar nanosecond‐pulsed dielectric barrier discharge

Wang,

Yan,

Bai

et al. 2023

Plasma Processes & Polymers

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This study explores the discharge uniformity at different cycles under different airflow velocities in nanosecond‐pulsed dielectric barrier discharge. Based on a proper choice of the airflow velocity and discharge parameters, diffuse discharges can be maintained at an air gap of 5–7 mm. At higher airflow velocities, the discharge may transition to a complex mode, in which the diffuse and filamentary regions are maintained simultaneously. When the discharge is operated at a higher frequency, higher voltage, or smaller gas gap, the area of diffuse discharge can be expanded to a certain extent. The discharge characteristics indicate that airflow lowers the gas temperature and modulates the preionization degree, which induces the generation of a diffuse discharge for a properly adjusted airflow velocity.

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Electrical and optical characteristics of surface plasma actuator based on a three-electrode geometry excited by nanosecond-pulse and DC sources

Kong,

Wang,

Zhang

et al. 2017

Physics of Plasmas

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Plasma actuator based on surface dielectric barrier discharge for active flow control has been widely investigated due to broad application prospects. In order to obtain extensive surface plasma, a plasma actuator based on a three-electrode structure sustained by nanosecond-pulse and DC sources is investigated. In this paper, the correlation between actuator parameters (especially in DC source polarity) and discharge characteristics is presented. The experimental results show that the plasma length is extended up to the third electrode due to a sliding discharge induced by a negative DC voltage. The negative DC voltage has a significant effect on the discharge current and propagation velocity of the slide discharge. Compared to the negative DC voltage, the plasma actuator with a positive DC voltage is difficult to induce a sliding discharge. Moreover, the spectrum characteristics, pressure wave, and vortex characteristics are investigated by means of time-resolved spectrum and schlieren visualization, respectively. The vortex characteristics indicate that the sliding discharge at a negative DC voltage induces two jets in opposite directions. However, the vortex characteristics with a positive DC voltage show that the air flow can be induced closer to the dielectric surface than those with a negative DC voltage. It is because a larger perturbation region in the case of positive DC voltage is beneficial to jet acceleration and thus enhances the flow control capability.

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Volume Diffuse Dielectric Barrier Discharge Plasma Produced by Nanosecond High Voltage Pulse in Airflow

Cited by 19 publications

References 30 publications

Nonlinearity of initiating and extinguishing boundaries of DBDs with airflows

Nonlinearity of initiating and extinguishing boundaries of DBDs with airflows

Effect of airflow on the discharge uniformity at different cycles in the repetitive unipolar nanosecond‐pulsed dielectric barrier discharge

Electrical and optical characteristics of surface plasma actuator based on a three-electrode geometry excited by nanosecond-pulse and DC sources

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