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arXiv 1104.3288physics.plasm-ph
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射频驱动微atmospheric pressure等离子体射流及其流出物的空间分辨模拟

Spatially resolved simulation of a radio frequency driven micro atmospheric pressure plasma jet and its effluent

Torben Hemke, Alexander Wollny, Markus Gebhardt, Ralf Peter Brinkmann, Thomas Mussenbrock

摘要:

射频驱动的等离子体射流经常被用作在大气压下用于表面改性和其它工艺的有效等离子体源。射频驱动微大气压等离子体射流($μ$ APPJ)是该概念的一个特殊变体,其几何形状允许直接光学访问。在这项工作中,$μ$ APPJ的特点与氦氧混合物及其与氦环境的相互作用进行了研究,通过数值模拟。的电子的密度和温度,以及所有活性物种的浓度都在射流本身和其流出物中进行了研究。发现流出物基本上不含载流子,但含有大量的活性氧(O,O $_3$和O $_2(^1Δ)$)。通过与实验数据的比较,验证了模拟结果。

英文摘要:

Radio frequency driven plasma jets are frequently employed as efficient plasma sources for surface modification and other processes at atmospheric pressure. The radio-frequency driven micro atmospheric pressure plasma jet ($μ$APPJ) is a particular variant of that concept whose geometry allows direct optical access. In this work, the characteristics of the $μ$APPJ operated with a helium-oxygen mixture and its interaction with a helium environment are studied by numerical simulation. The density and temperature of the electrons, as well as the concentration of all reactive species are studied both in the jet itself and in its effluent. It is found that the effluent is essentially free of charge carriers but contains a substantial amount of activated oxygen (O, O$_3$ and O$_2(^1Δ)$). The simulation results are verified by comparison with experimental data.

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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