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Experimental and numerical investigation of thermo-acoustic instability in a liquid-fuel aero-engine combustor at elevated pressure: Validity of large-eddy simulation of spray combustion
https://jaxa.repo.nii.ac.jp/records/22631
https://jaxa.repo.nii.ac.jp/records/226315271830e-1e3b-4654-828d-a9baa6b2d30b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-08-17 | |||||
タイトル | ||||||
タイトル | Experimental and numerical investigation of thermo-acoustic instability in a liquid-fuel aero-engine combustor at elevated pressure: Validity of large-eddy simulation of spray combustion | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Combustion instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Large-eddy simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Spray combustion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | High pressure combustion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Laser measurement | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Aero-engine combustor | |||||
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 |
立花, 繁
× 立花, 繁× 齋藤, 欣也× 山本, 武× 牧田, 光正× 北野, 智明× 黒瀬, 良一× Tachibana, Shigeru× Saito, Kinya× Yamamoto, Takeshi× Makida, Mitsumasa× Kitano, Tomoaki× Kurose, Ryoichi |
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著者所属 | ||||||
値 | 宇宙航空研究開発機構(JAXA) | |||||
著者所属 | ||||||
値 | 株式会社数値フローデザイン | |||||
著者所属 | ||||||
値 | 宇宙航空研究開発機構(JAXA) | |||||
著者所属 | ||||||
値 | 宇宙航空研究開発機構(JAXA) | |||||
著者所属 | ||||||
値 | 京都大学 | |||||
著者所属 | ||||||
値 | 京都大学 | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | Japan Aerospace Exploration Agency (JAXA) | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | Numerical Flow Designing CO., Ltd. | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | Japan Aerospace Exploration Agency (JAXA) | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | Japan Aerospace Exploration Agency (JAXA) | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | Kyoto University | |||||
著者所属(英) | ||||||
言語 | en | |||||
値 | Kyoto University | |||||
出版者(英) | ||||||
出版者 | Elsevier | |||||
書誌情報 |
en : Combustion and Flame 巻 162, 号 6, p. 2621-2637, 発行日 2015-06 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The feasibility of applying the large-eddy simulation (LES) of spray combustion to the investigation of the thermo-acoustic instability mechanisms in practical aero-engine combustors was examined, employing experimental data obtained from optical measurements. Single sector combustion tests using a staged fuel injector were conducted at the JAXA high temperature and pressure combustion test facility. An unstable operating condition exhibiting strong self-excited thermo-acoustic instability with a peak frequency of approximately 500 Hz and an amplitude more than 40 kPa was chosen for measurements of the dynamic pressure, in addition to OH-PLIF and OH* chemiluminescence studies. LES calculations were performed under the same conditions and the use of LES was validated based on comparisons of results with experimental data, considering the dynamic pressure and unsteady flame behaviors. In addition, a more detailed investigation was performed with the LES data, focused on unsteady characteristics such as velocity, evaporation rate, equivalence ratio and heat release rates. In general, LES was found to successfully reproduce the experimentally observed unsteady characteristics of pressure and flame structures during thermo-acoustic instability, though there were several discrepancies between LES and experimental results with regard to the oscillation amplitude and local flame behavior, such as the periodical flame flashback. In the LES data, the time evolution of the product of the flame surface area and the flame-area-averaged equivalence ratio were in good agreement with the overall heat release rate variations, suggesting a simple dominant mechanism for the thermo-acoustic instability. These results provide evidence for the feasibility of employing LES as a means of further exploring the effects of key physical parameters, such as the spatial distribution of fuel and its temporal variations, on combustion instability. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0010-2180 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00610787 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1016/j.combustflame.2015.03.014 | |||||
関連名称 | info:doi/10.1016/j.combustflame.2015.03.014 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: PA1520047000 |