| Item type |
itemtype_ver1(1) |
| 公開日 |
2022-10-13 |
| タイトル |
|
|
タイトル |
Supersonic Exhaust from a Rotating Detonation Engine with Throatless Diverging Channel |
|
言語 |
en |
| 著者 |
Nakata, Kotaro
Ota, Kosei
Ito, Shiro
Ishihara, Kazuki
Goto, Keisuke
Itouyama, Noboru
Watanabe, Hiroaki
Kawasaki, Akira
Matsuoka, Ken
Kasahara, Jiro
Matsuo, Akiko
Funaki, Ikkoh
Higashino, Kazuyuki
Braun, James
Meyer, Terrence
Paniagua, Guillermo
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Converging–diverging nozzles are common in rocket engine systems to increase the exhaust velocity and improve thrust performance. In this study, we focused on the acceleration of subsonic burned gas without a structural throat via detonation to realize a simple and compact engine. We developed and tested a rotating detonation engine (RDE) without a throat and with a diverging channel (constant diverging angle α=5 deg). Gaseous C2H4 and O2 were used as the propellants, and the mass flow rate ranged from 62 to 134 g/s in the combustion tests under low back-pressure conditions. We measured pressure and thrust, as well as high-speed imaging of self-luminescence of the combustion and imaging of the exhaust plume. The pressure at the exit was less than one-fifth of the maximum pressure in the RDE, significantly below the value for a sonic flow. The results suggested that the exhaust flow was supersonic, with values up to Mach 1.7, without the need of a converging section within the engine. In addition to the estimated Mach number from the measured pressure, the exhaust plume images coherently indicated the existence of supersonic exhaust. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
American Institute of Aeronautics and Astronautics |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.2514/1.J061300 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
0001-1452 |
| 書誌情報 |
en : AIAA Journal
巻 60,
号 7,
p. 4015-4023,
発行日 2022-07
|
| ファイル公開日 |
|
|
日付 |
2022-10-13 |
|
日付タイプ |
Available |
AIAAJournal_revision_without_correction_footnote_forRepository.pdf (3.8 MB)
