Characteristics of radio frequency atmospheric pressure glow discharges with different electrode configurations

被引：1

作者：

Li, Heping ^{[1
]}

Wang, Zhibin ^{[1
]}

Le, Peisi ^{[1
]}

Ge, Nan ^{[1
]}

Bao, Chengyu ^{[1
]}

机构：

[1] Department of Engineering Physics, Tsinghua University

来源：

Gaodianya Jishu/High Voltage Engineering | 2012年 / 38卷 / 07期

关键词：

Atmospheric glow discharge; Electrode configuration; Grayscale value; Image processing; Numerical simulation; Plasma; Radio frequency discharge;

D O I：

10.3969/j.issn.1003-6520.2012.07.008

中图分类号：

学科分类号：

摘要：

In order to investigate the discharge characteristics of the plasma generators with different geometrical configurations, a one-dimensional fluid model was employed to simulate the discharge features of the planar-type and co-axial-type radio-frequency atmospheric-pressure glow discharge (RF APGD) plasma generators. And typical discharge images are analyzed by using the visible image processing technique. The modeling results show that the parameters of the plasmas (e.g., the distributions of the electron temperature and the species number densities, etc.) produced by the planar-type generator are symmetric about for mid-plane between the electrodes, while the asymmetric features become significant with the co-axial-type generator. The spatial distributions of the plasma parameters using the different types of plasma generators are qualitatively consistent with the corresponding distributions of the grayscale values of the discharge images. The analysis of the chemical reactions shows that the spatial distributions of the plasma parameters are dependent on the electric field distributions resulting from the different electrode configurations of the plasma generators.

引用

页码：1588 / 1594

页数：6

共 28 条

[11] Li H., Li G., Wang S., Et al., Recent progress of atmospheric-pressure glow discharges with bare-metallic electrodes, Science & Technology Review, 27, 5, pp. 81-86, (2009)
[12] Yuan X., Raja L.L., Computational study of capacitively coupled high-pressure glow discharges in helium, IEEE Transactions on Plasma Science, 31, 4, pp. 495-503, (2003)
[13] Shi J.J., Kong M.G., Mode characteristics of radio-frequency atmospheric glow discharges, IEEE Transactions on Plasma Science, 33, 2, pp. 624-630, (2005)
[14] Shi J.J., Kong M.G., Mechanisms of the α and γ modes in radio-frequency atmospheric glow discharges, Journal of Applied Physics, 97, 2, (2005)
[15] Sakiyama Y., Graves D.B., Nonthermal atmospheric rf plasma in one-dimensional spherical coordinates: Asymmetric sheath structure and the discharge mechanism, Journal of Applied Physics, 101, 7, (2007)
[16] Hagelaar G.J.M., Pitchford L.C., Solving the Boltzmann equation to obtain electron transport coefficients and rate coefficients for fluid models, Plasma Sources Science and Technology, 14, 4, pp. 722-733, (2005)
[17] Morgan W., Boeuf J., Pitchford L., BOLSIG Boltzmann Solver (freeware), (1996)
[18] Deloche R., Monchicourt P., Cheret M., Et al., High-pressure helium afterglow at room temperature, Physical Review A, 13, 3, pp. 1140-1176, (1976)
[19] Phelps A.V., Absorption studies of helium metastable atoms and molecules, Physical Review, 99, 4, pp. 1307-1313, (1955)
[20] Golubovskii Y.B., Maiorov V.A., Behnke J., Et al., Modelling of the homogeneous barrier discharge in helium at atmospheric pressure, Journal of Physics D: Applied Physics, 36, 1, pp. 39-49, (2003)

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