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arXiv 1202.3879physics.plasm-phphysics.optics
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应用电流测量、数值模拟和发射光谱表征空气介质阻挡放电

Characterization of dielectric barrier discharge in air applying current measurement, numerical simulation and emission spectroscopy

Priyadarshini Rajasekaran, Nikita Bibinov, Peter Awakowicz

摘要:

采用电流测量、数值模拟和发射光谱等方法对空气介质阻挡放电(DBD)进行了研究。对于OES,使用未经校准的光谱仪。当可以确定活性等离子体体积和电流密度的横截面积时,该诊断方法是适用的。在380 nm- 406 nm光谱范围内的氮发射用于OES诊断。活性等离子体体积中的电场是应用测量的光谱、用于氮跃迁的众所周知的Frank-Condon因子和数值模拟的电子分布函数来确定的。测量的电流密度用于确定等离子体中的电子密度。利用所测得的等离子体参数,计算了等离子体中氮、氧的离解速率,为化学动力学模拟提供了依据。

英文摘要:

Dielectric barrier discharge (DBD) in air is characterized applying current measurement, numerical simulation and optical emission spectroscopy (OES). For OES, a non-calibrated spectrometer is used. This diagnostic method is applicable when cross-sectional area of the active plasma volume and current density can be determined. The nitrogen emission in the spectral range of 380 nm- 406 nm is used for OES diagnostics. Electric field in the active plasma volume is determined applying the measured spectrum, well-known Frank-Condon factors for nitrogen transitions and numerically- simulated electron distribution functions. The measured electric current density is used for determination of electron density in plasma. Using the determined plasma parameters, the dissociation rate of nitrogen and oxygen in active plasma volume are calculated, which can be used by simulation of the chemical kinetics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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