Numerical Investigation of Rotating Detonation Engine with Injection from the Combustor Side Wall

Takumi Sada, Akiko Matsuo, Eiji Shima, Hiroaki Watanabe, Akira Kawasaki, Ken Matsuoka, Jiro Kasahara

研究成果: Conference contribution


Numerical analysis of cylindrical rotating detonation engine (RDE) with injectors on the combustor side wall is conducted using the stoichiometric H2-Air premixed gas. The combustor is 70 mm in length and 20 mm in diameter. The results are compared to the conventional injector configuration, which has injectors on the combustor bottom, and the combustion features with side injection are investigated. The instantaneous pressure and temperature fields show the characteristics of propagating waves are different depending on the injector configuration. From the spatiotemporal average profiles, the combustion occurs more rapidly in the case of injection from the bottom. However, the case of injection from the side wall also shows the consumption of fuel. Compared to the theoretical values, the specific impulse is 106 % from the bottom and 103 % from the side. In this combustor length, both injection conditions can provide similar thrust performance to the theoretical values.

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
出版ステータスPublished - 2022
イベントAIAA AVIATION 2022 Forum - Chicago, United States
継続期間: 2022 6月 272022 7月 1


名前AIAA AVIATION 2022 Forum


ConferenceAIAA AVIATION 2022 Forum
国/地域United States

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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