Energy Transfer Processes in an Ionized Nonequilibrium Flow

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概要

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• The energy transfer processes of an electron gas are investigated, both analytically and experimentally, for a pipe flow of weakly ionized nonequilibrium plasmas. An energy equation for electrons is solved for an axially symmetric flow through a circular tube for the case when the plasma density distribution in the flow is mainly controlled by ambipolar diffusion. It follows from the analysis that the electron temperature exponentially decreases along the tube axis. The decay rates of the electron temperature along the tube axis are obtained in analytical formulae for both slug and Poiseuille flows. The measurement for the decay rates is worked out for ionized argon flows in the low-density glow-discharge tube for a range of the Knudsen number for electrons around 0.1. The measured decay rates are found to be in qualitative agreement with the rates evaluated from the present analysis.

• 宇宙航空研究開発機構の論文

著者

• Honma Hiroki

  Institute Of Space And Aeronautical Science University Of Tokyo

関連論文

• Energy Transfer Processes in an Ionized Nonequilibrium Flow

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