JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
title回転デトネーションロケットエンジンの内筒が推力性能に与える影響に対する実験的検討
Other TitleAn Experimental Investigation of the Effect of Inner Cylinder on the Performance of a Rotating Detonation Rocket Engine
Author(jpn)川﨑, 央; 笠原, 次郎; 稲川, 智也; 松岡, 健; 川島, 秀人; 松尾, 亜紀子; 船木, 一幸
Author(eng)Kawasaki, Akira; Kasahara, Jiro; Inakawa, Tomoya; Matsuoka, Ken; Kawashima, Hideto; Matsuo, Akiko; Funaki, Ikko
Author Affiliation(jpn)名古屋大学; 名古屋大学; 名古屋大学; 名古屋大学; 宇宙航空研究開発機構研究開発部門(JAXA); 慶應義塾大学; 宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)
Author Affiliation(eng)Nagoya University; Nagoya University; Nagoya University; Nagoya University; Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA); Keio University; Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency(JAXA)(ISAS)
Issue Date2019-02-25
Publisher宇宙航空研究開発機構(JAXA)
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構特別資料: 第50回流体力学講演会/第36回航空宇宙数値シミュレーション技術シンポジウム論文集
JAXA Special Publication: Proceedings of the 50th Fluid Dynamics Conference / the 36th Aerospace Numerical Simulation Symposium
VolumeJAXA-SP-18-005
Start page91
End page95
Publication date2019-02-25
Languagejpn
eng
AbstractIn this study, an inner-cylinder-replaceable rotating detonation rocket engine is tested in a vacuum environment for various inner-cylinder radii r(sub i) ranging from 31 mm (typical lab scale) to 0 mm (no inner cylinder). As a result, it was clarified that there exists a critical inner-cylinder radius to sustain adequate thrust performance in the engine. Detonation waves attached to the inner-cylinder wall for r(sub i) = 23 and 31 mm (supercritical cases), whereas detachment of detonation waves from the inner-cylinder wall was observed for r(sub i) = 0 and 9 mm (subcritical cases), and 15 mm (critical case). In the cases of r(sub i) = 0, 9 mm (subcritical), and 15 mm (critical), strong chemical luminescence was observed significantly in the exhaust plume. For r(sub i) = 15 mm (critical cases), and 23 and 31 mm (supercritical cases), the measured specific impulses were greater than 80% of theoretical values. However, for r(sub i) = 0 and 9 mm (subcritical cases), the measured specific impulses were below 80% of the theoretical values. This is to be attributed to the imperfect detonation combustion observed significantly in the subcritical cases. From these results, we have concluded that the inner-cylinder radius is, at 15 mm, close to the critical condition to keep rotating detonation waves in a favorable state in the combustor.
Description会議情報: 第50回流体力学講演会/第36回航空宇宙数値シミュレーション技術シンポジウム (2018年7月4日-6日. 宮崎市民プラザ), 宮崎市, 宮崎
形態: カラー図版あり
Meeting Information: 50th Fluid Dynamics Conference /the 36th Aerospace Numerical Simulation Symposium (July 4-6, 2018. Miyazaki Citizen's Plaza), Miyazaki, Japan
Physical characteristics: Original contains color illustrations
Document TypeConference Paper
JAXA Category特別資料
NASA Subject CategoryFluid Mechanics and Thermodynamics
ISSN(online)2433-2232
SHI-NOAA1830029005
Report NoJAXA-SP-18-005
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/910493


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