Heat string model of bi-dimensional dc Glidarc
Heat string model of bi-dimensional dc Glidarc
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DOI：
10.1088/0022-3727/33/19/311
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发表时间：
2000-10
期刊：
影响因子：
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通讯作者：
S. Pellerin;F. Richard;J. Chapelle;J. Cormier;K. Musioł
中科院分区：
文献类型：
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作者：
S. Pellerin;F. Richard;J. Chapelle;J. Cormier;K. Musioł
滑动弧光放电(‘Glidarc’)在各种化学反应中的应用重新引起人们的兴趣。滑动的弧线在两个喇叭形电极之间形成了一条弱电离气体“线”。在本文中，我们提出了一个在空气中工作的二维直流Glidarc的简单模型，在该模型中，被焦耳效应加热的放电的导电区被认为是被气流冷却的热线。在这根导线内部，热传递是由热传导引起的。热线和气流之间的热量交换是由对流保证的，并取决于导线半径和电弧相对于气流的相对速度。该模型正确地描述了实验结果，并允许我们预测Glidarc在不同实验情况下的工作参数。
The gliding arc discharge ('Glidarc') is the subject of renewed interest in application to a variety of chemical reactions. The gliding arc creates a weakly ionized gas 'string' between two horn-shaped electrodes. In this paper, we present a simple model for a bi-dimensional dc Glidarc working in air, in which the conducting zone of the discharge that is heated by the Joule effect is considered as a hot wire cooled by an air flow. Inside this wire, the heat transfer results from thermal conduction. The exchange of heat between the hot wire and the air flow is assured by convection and depends on the wire radius and the relative velocity of the arc with respect to the gas flow. The model correctly describes experimental results and allows us to predict the working parameters of the Glidarc in different experimental situations.