Glow Discharge Characteristics in Transverse Supersonic Air Flow

Тимеркаев, Б. А.; Zalyaliev, B. R.; Saifutdinov, A. I.

doi:10.1088/1742-6596/567/1/012032

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…9,10) In the practical applications, it has been found that a certain gas flow can improve the performance of plasma sources, e.g., enhancing the plasma chemical activity 11,12) and enlarging the plasma volume. [13][14][15] The effect of gas flow on the discharge was investigated under the conditions of transverse gas flow 16,17) and longitudinal gas flow. [18][19][20][21][22] Intra and Tippayawong experimentally characterized the discharge at different transverse airflow rates in a corona ionizer.…”

Section: Introductionmentioning

confidence: 99%

“…Timerkaev et al experimentally found that the transverse supersonic airflow in a low-pressure glow discharge gives rise to a higher concentration of gas particles in the space region where the supersonic gas arrives. 16) Tochikubo et al carried out a two-dimensional numerical simulation of atmospheric-pressure DC glow discharge with longitudinal helium flow in nitrogen. It was found that the glow discharge is generated in the region with a high helium mole fraction, and the helium mole fraction is crucial to the discharge structure along the helium flow.…”

Section: Introductionmentioning

confidence: 99%

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Influence of longitudinal argon flow on DC glow discharge at atmospheric pressure

Zhu

Jiang

Tang

et al. 2016

Jpn. J. Appl. Phys.

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A one-dimensional self-consistent fluid model was employed to investigate the influence of longitudinal argon flow on the DC glow discharge at atmospheric pressure. It is found that the charges exhibit distinct dynamic behaviors at different argon flow velocities, accompanied by a considerable change in the discharge structure. The positive argon flow allows for the reduction of charge densities in the positive column and negative glow regions, and even leads to the disappearance of negative glow. The negative argon flow gives rise to the enhancement of charge densities in the positive column and negative glow regions. These observations are attributed to the fact that the gas flow convection influences the transport of charges through different manners by comparing the argon flow velocity with the ion drift velocity. The findings are important for improving the chemical activity and work efficiency of the plasma source by controlling the gas flow in practical applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of longitudinal argon flow on DC glow discharge at atmospheric pressure

Zhu

Jiang

Tang

et al. 2016

Jpn. J. Appl. Phys.

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Controlling the structure of a glow discharge by supersonic gas flow

et al. 2022

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The effect of supersonic gas flow on glow discharge characteristics in interelectrode space is studied. First, gas outflow through a Laval nozzle with a central body was simulated: gas particle density distributions, gas flow velocity, Mach number, and temperature were obtained. Next, these profiles were used for numerical calculations of the parameters of a transverse glow discharge within the framework of an extended fluid description of the plasma. As a result, it was found that the cathode zones can both shrink and stretch depending on the parameters of the supersonic gas flow. The latter creates an inhomogeneous gas density in the interelectrode region and thereby affects the value of E/N, which determines the electrical characteristics of the discharge. Numerical simulation results are confirmed by experimental data.

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