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The reactive thermal conductivity for a two-temperature plasma

机译:两温等离子体的反应热导率

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摘要

Reliable plasma thermodynamic and transport properties are required for the numerical simulation of thermal plasma systems. Although many databases for the thermal plasma properties at the local thermodynamic equilibrium (LTE) state have been compiled, the database for the two-temperature (2-T) plasma is still far from completeness. There exits considerable confusion in the literature concerning how to calculate the thermodynamic and transport properties, including the reactive thermal conductivity, for the 2-T plasma. In this paper, a detailed derivation for the reactive thermal conductivity of the 2-T argon plasma is presented using two different approaches. The present calculated results for the reactive thermal conductivity are identical to those due to Hsu for the special case of LTE plasma, but are different when the electron temperature is higher than the heavy-particle temperature, the difference increases with increasing electron/heavy-particle temperature ratio, θ(= T_e/T_h), and becomes quite significant at high θ.
机译:热等离子体系统的数值模拟需要可靠的等离子体热力学和传输特性。尽管已编译了许多有关局部热力学平衡(LTE)状态下的热等离子体特性的数据库,但用于双温度(2-T)等离子体的数据库仍远远不够完善。关于如何计算2-T等离子体的热力学和输运性质(包括反应性热导率)的文献,存在很多混淆。在本文中,使用两种不同的方法详细介绍了2-T氩等离子体的反应热导率。对于LTE等离子体的特殊情况,当前的反应热导率计算结果与Hsu的计算结果相同,但是当电子温度高于重粒子温度时,计算结果将有所不同,当电子/重粒子增加时,差异会增大温度比θ(= T_e / T_h),在高θ时变得相当显着。

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