Vibration-to-translation energy transfer in atmospheric-pressure streamer discharge in dry and humid air
Vibration-to-translation energy transfer in atmospheric-pressure streamer discharge in dry and humid air
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DOI：
10.1088/0963-0252/24/5/055020
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发表时间：
2015-09
影响因子：
3.8
通讯作者：
A. Komuro;Kazunori Takahashi;A. Ando
中科院分区：
文献类型：
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作者：
A. Komuro;Kazunori Takahashi;A. Ando
采用二维电-水动力学模型对常压流线型放电中振动-平移（V-T）能量传递进行了数值模拟。该模型包括湿空气中状态-状态振动动力学，并与气体流体的可压缩流动方程相耦合。O2(v)的振动分布？>比N2(v) ?更快达到平衡。而O2释放的能量(v) ？>不提高气体温度。在潮湿空气中，振动能N2(v) ？>通过水分子的V-T能量传递而加速，能量加热气体。然而，由于V-T能量传递引起的气体温度升高并不总是可见的，因为它与热扩散相竞争。
Vibration-to-translation (V–T) energy transfer in atmospheric-pressure streamer discharge is numerically simulated using a two-dimensional electro-hydrodynamic model. The model includes state-to-state vibrational kinetics in humid air and is coupled with the compressible flow equation of the gas fluid. The vibrational distribution of O2(v) ?> reaches equilibrium more quickly than that of N2(v) ?>, whereas the energy released from O2(v) ?> does not increase the gas temperature. In humid air, the decay rate of the vibrational energy of N2(v) ?> is accelerated by the V–T energy transfer through water molecules and the energy heats the gas. However, the increase in gas temperature due to V–T energy transfer is not always seen because it competes with thermal diffusion.