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首页> 外文期刊>Japanese journal of applied physics >Effects of ambient air on the characteristics of an atmospheric-pressure plasma jet of a gas mixture of highly N_2-diluted O_2 on a sliding substrate
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Effects of ambient air on the characteristics of an atmospheric-pressure plasma jet of a gas mixture of highly N_2-diluted O_2 on a sliding substrate

机译：环境空气对高N_2稀释的O_2混合气体在滑动基板上的大气压等离子体射流特性的影响

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We have performed numerical simulations of reaction kinetics and flow dynamics of an atmospheric-pressure plasma jet (APPJ) of a gas mixture of 99.9% N-2 and 0.1% O-2 in a two-dimensional flow channel with a height of 5 mm and investigated the effects of a sliding substrate and the substitution of the ambient gas. The sliding substrate in the flow channel produces the gas-drag effect, which results in not only the bending of the APPJ trajectory but also significant loss of atomic oxygen when the ambient gas is air. The flux of atomic oxygen integrated on the substrate is reduced to 19% of that integrated on the fixed substrate. We discuss the mechanisms of the reduction in the atomic oxygen flux through the analysis of spatial distributions of atomic oxygen loss reactions and show that the reduction in the atomic oxygen flux can be suppressed by substituting the ambient gas (air) with N-2. (c) 2018 The Japan Society of Applied Physics
机译：我们对99.9％N-2和0.1％O-2的气体混合物在高度为5 mm的二维流动通道中进行大气压等离子体射流（APPJ）的反应动力学和流动动力学进行了数值模拟并研究了滑动基板和替代环境气体的影响。流道中的滑动基板会产生气体拖曳效应，这不仅会导致APPJ轨迹弯曲，而且在周围气体为空气​​时会导致原子氧的大量损失。集成在基板上的原子氧通量减少到固定基板上集成的氧通量的19％。我们通过分析原子氧损失反应的空间分布来讨论原子氧通量减少的机理，并表明通过用N-2代替环境气体（空气）可以抑制原子氧通量的减少。 （c）2018年日本应用物理学会

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