Investigations on the Field of Arc-Heated Flows

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概要

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• In order to obtain a highly ionized gas at the location of measurement, a conventional plasma wind tunnel is remodeled into a new one with the ring anode. As the result of remodeling, the freely expanding plasma flow is heated by Joule-heat. At the outset, the characteristics of the arc jet are investigated experimentally. Secondly, temperature distributions are measured by spectroscopic methods and the flow velocity is measured by making use of bright points existing in the plasma jet. The results indicate that the new remodeled arc jet can be given more electric power than a conventional arc jet, and the highly ionized gas is sustained far downstream. The diameter of the arc column and the temperature calculated theoretically, agree with the experimental results. Current distributions are calculated theoretically on the assumption that the electron temperature is different from the gas temperature. The results indicate that currents run little at the back of the ring anode.

• 一般社団法人日本機械学会の論文

著者

• YOSHIKAWA Takao

  Faculty of Engineering Science, Osaka University

• Murasaki Toshimitsu

  Faculty Of Engineering Science. Osaka University

• Murasaki Toshimitsu

  Faculty Of Engineering Science Osaka University

• Yoshikawa Takao

  Faculty Of Engineering Science Osaka University

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• Investigations on the Field of Arc-Heated Flows

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