| Item type |
WEKO3_JAXA出版物 / JAXA Publication(1) |
| 公開日 |
2025-02-26 |
| タイトル |
|
|
タイトル |
On the roles of spray response to pressure oscillations in combustion instability in a combustor with a lean-burn coaxially-staged fuel injector for aero-engines.: First report: Preliminary attempts on fuel flow rate response. |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
主題 |
Combustion instability, Spray response, Aero-engine, Lean-burn fuel injector, Large eddy simulation |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_18gh |
|
資源タイプ |
technical report |
| ID登録 |
|
|
ID登録 |
10.20637/0002001691 |
|
ID登録タイプ |
JaLC |
| 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 |
| 著者 |
松浦, 一哲
| en |
MATSUURA, Kazuaki
Japan Aerospace Exploration Agency (JAXA)
|
| ja |
松浦, 一哲
宇宙航空研究開発機構 (JAXA)
|
Search repository
加藤, 昂大
| en |
KATO, Kodai
Japan Aerospace Exploration Agency (JAXA)
|
| ja |
加藤, 昂大
宇宙航空研究開発機構 (JAXA)
|
Search repository
佐々木, 悠太
座間, 淑夫
山本, 武
| en |
YAMAMOTO, Takeshi
Japan Aerospace Exploration Agency (JAXA)
|
| ja |
山本, 武
宇宙航空研究開発機構 (JAXA)
|
Search repository
黒瀬, 良一
|
| 著者所属 |
|
|
著者所属 |
En-Core Project Team, Aviation Technology Directorate, Japan Aerospace Exploration Agency (JAXA)(en), En-Core Project Team, Aviation Technology Directorate, Japan Aerospace Exploration Agency (JAXA)(en), Gunma University(en), Gunma University(en), En-Core Project Team, Aviation Technology Directorate, Japan Aerospace Exploration Agency (JAXA)(en), Department of Mechanical Engineering and Science, Kyoto University(en)
宇宙航空研究開発機構航空技術部門コアエンジン技術実証（Ｅｎ－Ｃｏｒｅ）プロジェクトチーム (JAXA)(ja), 宇宙航空研究開発機構航空技術部門コアエンジン技術実証（Ｅｎ－Ｃｏｒｅ）プロジェクトチーム (JAXA)(ja), 群馬大学(ja), 群馬大学(ja), 宇宙航空研究開発機構航空技術部門コアエンジン技術実証（Ｅｎ－Ｃｏｒｅ）プロジェクトチーム (JAXA)(ja), 京都大学大学院工学研究科機械理工学専攻(ja) |
| 出版者 |
|
|
出版者 |
Japan Aerospace Exploration Agency (JAXA)(en)
宇宙航空研究開発機構 (JAXA)(ja) |
| bibliographic_information |
en : JAXA Research and Development Memorandum
ja : 宇宙航空研究開発機構研究開発資料
巻 JAXA-RM-24-003E,
ページ数 31,
発行日 2025-02-26
|
| 抄録 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Preliminary investigation on the roles of spray response to pressure oscillations in combustion instability was carried out for a combustor with a lean-burn coaxially-staged fuel injector for aero-engines. In this first report, two relevant attempts, still in progress, are presented, focusing on fuel flow rate response among fuel spray physical properties. Firstly, numerical experiments by LES on artificial response delay introduced as a modification to an original quasi-steady response model were performed in a similar approach to Pillai et al. (2020). Good agreement with an “optical-burner” experiment similar to Matsuura et al. (2015) was obtained at the time delays of 0.08~0.16ms, which corresponded to the phase delays of roughly 15~30deg at the frequencies of 430~500 Hz. Secondly, a newly developed response model was employed, based on the unsteady Bernoulli’s equation with adjustable coefficients. They were determined from experimental data of PIV inside the injection hole of simple cross-flow liquid jet where the air flow rate and back pressure of the injector were modulated by a siren. The model could physically explain the origin of response delay, but at the current stage, the LES result based on the model with these coefficients did not show good agreement with that of the combustion experiment. Thus, further improvements should be carried out to capture the phenomena in the experiment. This report also supplementarily includes explanation on the “optical burner” experiment and PIV of oscillating fuel flow inside the injection hole, both of which are unique features of the present experimental/numerical joint approach. |
|
言語 |
en |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Physical characteristics: Original contains color illustrations |
|
言語 |
en |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
形態: カラー図版あり |
|
言語 |
ja |
| ISSN ONLINE |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
2433-2224 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 日付 |
|
|
日付 |
2024-11-28 |
|
日付タイプ |
Submitted |
| 資料番号(Local) |
|
|
|
関連識別子 |
資料番号: AA2430023000 |
| レポート番号 |
|
|
内容記述 |
レポート番号: JAXA-RM-24-003E |
AA2430023000.pdf (10.2 MB)
