Item type |
itemtype_ver1(1) |
公開日 |
2021-09-09 |
タイトル |
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タイトル |
Propulsion Performance of Cylindrical Rotating Detonation Engine |
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言語 |
en |
著者 |
Yokoo, Ryuya
Goto, Keisuke
Kim, Juhoe
Kawasaki, Akira
Matsuoka, Ken
Kasahara, Jiro
Matsuo, Akiko
Funaki, Ikkoh
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
内容記述 |
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内容記述 |
This study evaluated the propulsion performance of a nozzleless, cylindrical rotating detonation engine (RDE). Using a C2H4–O2 mixture, the RDE was tested in a low-back-pressure environment at propellant mass flow rates of 8–45 g/s. In high-speed imaging of the self-luminescence within the combustor, rotating luminous regions were observed at mass flow rates above 22 g/s. Measured pressure distributions suggest that burned gas reached sonic velocity at the combustion chamber outlet. This paper proposes the structure of internal flow in the RDE and confirms that calculated pressure distribution based on the structure was close to the experimental distribution. This study also estimated the RDE’s thrust by pressure and momentum exchange and confirmed it by experimental measurement. Moreover, the theoretical thrust calculated under the assumption that exhaust is a sonic flow agreed with the load cell thrusts, suggesting that RDE combustion is perfectly completed inside the chamber. Specific impulses are 80–90% of specific impulses for ideal correct expanded flow for all mass flow rates, and its value was close to that of an annular RDE. In addition, RDE performance will increase by about 20% if the RDE is equipped with a divergent nozzle and the gas is correctly expanded to back pressure. |
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言語 |
en |
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内容記述タイプ |
Abstract |
出版者 |
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言語 |
en |
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出版者 |
American Institute of Aeronautics and Astronautics |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.2514/1.J058322 |
収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0001-1452 |
書誌情報 |
en : AIAA Journal
巻 58,
号 12,
p. 5107-5116,
発行日 2020-12
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ファイル公開日 |
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日付 |
2021-09-09 |
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日付タイプ |
Available |