CFD predictions of LBO limits for aero-engine combustors using fuel iterative approximation
文献类型：期刊论文
| 作者 | Hu Bin1; Huang Yong2; Wang Fang2; Xie Fa2 |
| 刊名 | CHINESE JOURNAL OF AERONAUTICS
 |
| 出版日期 | 2013-02-01 |
| 卷号 | 26期号:1页码:74-84 |
| 关键词 | Aero-engine combustor Computational fluid dynamics Fuel iterative approximation LBO limits prediction Perfect stirred reactor |
| 英文摘要 | Lean blow-out (LBO) is critical to operational performance of combustion systems in propulsion and power generation. Current predictive tools for LBO limits are based on decades-old empirical correlations that have limited applicability for modern combustor designs. According to the Lefebvre's model for LBO and classical perfect stirred reactor (PSR) concept, a load parameter (LP) is proposed for LBO analysis of aero-engine combustors in this paper. The parameters contained in load parameter are all estimated from the non-reacting flow field of a combustor that is obtained by numerical simulation. Additionally, based on the load parameter, a method of fuel iterative approximation (FIA) is proposed to predict the LBO limit of the combustor. Compared with experimental data for 19 combustors, it is found that load parameter can represent the actual combustion load of the combustor near LBO and have good relativity with LBO fuel/air ratio (FAR). The LBO FAR obtained by FIA shows good agreement with experimental data, the maximum prediction uncertainty of FIA is about +/- 17.5%. Because only the non-reacting flow is simulated, the time cost of the LBO limit prediction using FIA is relatively low (about 6 h for one combustor with computer equipment of CPU 2.66 GHz x 4 and 4 GB memory), showing that FIA is reliable and efficient to be used for practical applications. (C) 2013 CSAA & BUAA. Production and hosting by Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Aerospace |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | LEAN BLOW-OUT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000315806900008 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/98850]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Light Duty Gas Turbine, Beijing 100190, Peoples R China 2.Beihang Univ, Sch Energy & Power Engn, AEL Key Lab Sci & Technol Natl Def, Beijing 100191, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu Bin,Huang Yong,Wang Fang,et al. CFD predictions of LBO limits for aero-engine combustors using fuel iterative approximation[J]. CHINESE JOURNAL OF AERONAUTICS,2013,26(1):74-84. |
| APA | Hu Bin,Huang Yong,Wang Fang,&Xie Fa.(2013).CFD predictions of LBO limits for aero-engine combustors using fuel iterative approximation.CHINESE JOURNAL OF AERONAUTICS,26(1),74-84. |
| MLA | Hu Bin,et al."CFD predictions of LBO limits for aero-engine combustors using fuel iterative approximation".CHINESE JOURNAL OF AERONAUTICS 26.1(2013):74-84. |
入库方式： OAI收割
来源：工程热物理研究所
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