Plasma Structure and Non-Equilibrium Thermodynamics of Atmospheric Millimeter-Wave Discharge in Microwave Rocket

Kuniyoshi Tabata, Ayuto Manabe, Yoshiki Takase, Kimiya Komurasaki, Rei Kawashima, Hokuto Sekine

研究成果: Conference contribution

抄録

Plasma structures, as well as vibrational and rotational temperatures of millimeter-wave discharge plasma were investigated experimentally using a 28 GHz gyrotron beam. Four plasma structures were observed in the range of 10–100 kPa and 0.01–1.0 GW/m2 . Besides, the vibrational temperature didn’t exceed 6000 K at beam intensities of 0.067–0.46 GW/m2 and atmospheric pressure, and non-equilibrium between vibrational and translational–rotational temperatures was confirmed. Furthermore, a two-dimensional and two-temperature CFD simulation was carried out which took into account the non-equilibrium temperatures and plasma structures. The computational results suggested that an ionization-wave front can exceed a shock wave front on the order of one millimeter due to the energy relaxation delay from vibrational to translational temperature.

本文言語English
ホスト出版物のタイトルAIAA AVIATION 2022 Forum
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624106354
DOI
出版ステータスPublished - 2022
外部発表はい
イベントAIAA AVIATION 2022 Forum - Chicago, United States
継続期間: 2022 6月 272022 7月 1

出版物シリーズ

名前AIAA AVIATION 2022 Forum

Conference

ConferenceAIAA AVIATION 2022 Forum
国/地域United States
CityChicago
Period22/6/2722/7/1

ASJC Scopus subject areas

  • エネルギー工学および電力技術
  • 原子力エネルギーおよび原子力工学
  • 航空宇宙工学

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