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Large-Eddy Simulation of High-Frequency Combustion Instability in a Single-Element Atomspheric Combustor
https://jaxa.repo.nii.ac.jp/records/22728
https://jaxa.repo.nii.ac.jp/records/227283aff60e0-da34-48ab-ac56-d5abd7b7f330
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-07-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Large-Eddy Simulation of High-Frequency Combustion Instability in a Single-Element Atomspheric Combustor | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
松山, 新吾
× 松山, 新吾× 堀, 暖× 清水, 太郎× 立花, 繁× 吉田, 征二× 溝渕, 泰寛× Matsuyama, Shingo× Hori, Dan× Shimizu, Taro× Tachibana, Shigeru× Yoshida, Seiji× Mizobuchi, Yasuhiro |
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著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
名古屋大学 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Nagoya University | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
出版者(英) | ||||||
出版者 | American Institute of Aeronautics and Astronautics(AIAA) | |||||
書誌情報 |
en : Journal of Propulsion and Power 巻 32, 号 3, p. 628-645, 発行日 2016-05 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Large-eddy simulation is performed to simulate high-frequency combustion instability in a single-element atmospheric combustor. Simulations are conducted for corresponding combustion-instability experiments, and the self-excited combustion instability is successfully captured. The first tangential mode of the combustion chamber is excited in the large-eddy simulation, and the amplitude and frequency of the pressure fluctuations are consistent with the experimental observations. The first tangential mode in the large-eddy simulation was observed at 1 kHz, and the peak-to-peak amplitude was approximately 4% of time-averaged pressure. The higher-order modes were also observed in the large-eddy simulation at frequencies ranging from 2 to 4 kHz, although those amplitudes were approximately one-fourth of the first tangential mode. The coupling mechanism between the flame and acoustic mode is explored based on the large-eddy-simulation results. The periodic ignition of the unburnt H2/O2 mixture exhibits lifted combustion in a pulsating motion, and the frequency is similar to the first-tangential-mode frequency. This unsteady pulsating-flame behavior is caused by the coupling between the fuel injection and the first-tangential-mode oscillation. The Rayleigh index indicates that a primary driving factor for the instability is the acoustically coupled pulsating-flame motion. The present results demonstrate that large-eddy simulation can accurately capture the unsteady heat release and its coupling with pressure oscillations. The large-eddy-simulation results clarify details of flame structures that are not completely understood from the experimental measurements. These results are also valuable for understanding the coupling mechanism of the flame and acoustic mode in a combustion chamber. | |||||
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 | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0748-4658 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10459896 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.2514/1.B35670 | |||||
関連名称 | info:doi/10.2514/1.B35670 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: PA1620032000 |