| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2024-10-21 |
| タイトル |
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|
タイトル |
Combustion Structure of a Cylindrical Rotating Detonation Engine with Liquid Ethanol and Nitrous Oxide |
|
言語 |
en |
| 著者 |
Sato, Tomoki
Nakata, Kotaro
Ishihara, Kazuki
Itouyama, Noboru
Matsuoka, Ken
Kasahara, Jiro
Kawasaki, Akira
Nakata, Daisuke
Eguchi, Hikaru
Uchiumi, Masaharu
Matsuo, Akiko
Funaki, Ikkoh
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| アクセス権 |
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アクセス権 |
embargoed access |
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アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
| 権利 |
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|
権利情報 |
© 2024. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
言語 |
en |
| 内容記述 |
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|
内容記述タイプ |
Abstract |
|
内容記述 |
Liquid propellants are commonly used in rocket engines due to their high energy density. In this study, we focused on the use of liquid ethanol and liquid nitrous oxide as propellants in a cylindrical rotating detonation engine (RDE) for practical applications, and examined the effects of various conditions on the bipropellant RDE performance. We varied the vapor quality of nitrous oxide in a mixture of liquid and gaseous nitrous oxide due to the flash boiling. In addition, we varied the liquid ethanol temperature, the injector stiffness, and momentum angle of the propellant. We then analyzed the effects of these changes on the propagation mode of the RDE under atmospheric pressure conditions. The results showed that a rotating detonation wave was observed under the combination of high vapor quality of nitrous oxide, high injector stiffness, high liquid ethanol temperature, and high momentum angle. The propagation velocity was obtained as 73∼83 % of the Chapman-Jouguet velocity. Long-duration combustion tests were also conducted, and the internal combustion structure was confirmed from the erosion of the carbon-carbon (C/C) composite material. The detonation wave was considered to propagate near the bottom of the RDE with liquid propellants from the erosion heights of the C/C composite. The erosion height was confirmed to be consistent with the fill height calculated using the sound speed of the nitrous oxide. In addition, characteristic exhaust velocity efficiencies of more than 85 % were achieved in all combustion tests. |
|
言語 |
en |
| 出版者 |
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出版者 |
Elsevier |
|
言語 |
en |
| 言語 |
|
|
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 |
|
タイプ |
journal article |
| 出版タイプ |
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|
出版タイプ |
AM |
|
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/10.1016/j.combustflame.2024.113443 |
| 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 |
00102180 |
| 書誌情報 |
en : Combustion and Flame
巻 264,
p. 113443,
発行日 2024-06
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| ファイル公開日 |
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|
日付 |
2026-06-01 |
|
日付タイプ |
Available |
CNF_SatoTomoki_finalfile_forRepository.pdf (1.3 MB)
