Spatial and temporal non-equilibrium of millimeter-wave discharge plasma in microwave rocket

Kuniyoshi Tabata, Hanco Britz, Kimiya Komurasaki, Rei Kawashima, Hiroyuki Koizumi

研究成果: Conference contribution

抄録

Plasma structures, as well as vibrational and rotational temperatures of millimeter-wave discharge plasma in Microwave Rocket were investigated experimentally using a 28 GHz gyrotron beam. Four plasma structures were observed, including a comb-shaped structure in the range of 10–100 kPa and 0.01–1.0 GW/m2, which is a typical plasma structure observed in millimeter-wave discharge plasma. Besides, it was found that vibrational temperature didn’t exceed 6000 K at the beam intensity of 0.067–0.46 GW/m2 at atmospheric pressure, and non-equilibrium between vibrational and rotational temperatures was confirmed. Furthermore, a two-dimensional CFD was conducted, considering non-equilibrium temperatures and the plasma structures. The computational results suggested that over 2.0 GW/m2, an ionization-wave front can exceed a pressure-spike front in 1–10 mm order.

本文言語English
ホスト出版物のタイトルAIAA Scitech 2021 Forum
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ページ1-10
ページ数10
ISBN(印刷版)9781624106095
出版ステータスPublished - 2021
外部発表はい
イベントAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
継続期間: 2021 1月 112021 1月 15

出版物シリーズ

名前AIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period21/1/1121/1/15

ASJC Scopus subject areas

  • 航空宇宙工学

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