Evolution of Unsteady Flow near Rotor Tip during Stall Inception
文献类型：期刊论文
| 作者 | Geng, Shaojuan; Lin, Feng; Chen, Jingyi; Nie, Chaoqun |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2011-07-01 |
| 卷号 | 20期号:4页码:294-303 |
| 关键词 | Axial compressor stall inception tip leakage flow rotating instability numerical simulation |
| 英文摘要 | Previously the features of circumferential propagation of self-induced tip leakage flow unsteadiness for a low speed isolated axial compressor rotor in the authors' laboratory were discovered and investigated via numerical simulation, which only occurs below a critical stable flow point that is close to but not yet at the stall limit. Further in this paper, the detailed investigation on evolution of tip leakage flow during the throttling process into spike rotating stall was conducted by adopting the valve-throttling model. During this process, the development of the circumferential propagation of tip leakage flow unsteadiness was especially focused on. According to the unsteady characteristics of pressure signals, the evolvement of compressor flow field can be classified into four stages. As compressor throttled, the oscillation frequency of self-induced unsteady tip leakage flow decreased gradually, and thus resulted in the decrease of its circumferential propagation speed. The circumferential propagation of self-induced tip leakage flow unsteadiness is closely related with rotating instability. When the forward spillage of tip leakage flow at the leading edge occurred, the spike type rotating stall was initiated. Its flow structures were given in the paper. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Engineering, Mechanical |
| 研究领域[WOS] | Thermodynamics ; Engineering |
| 关键词[WOS] | AXIAL COMPRESSOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000292279000002 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106528]  |
| 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 | Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Geng, Shaojuan,Lin, Feng,Chen, Jingyi,et al. Evolution of Unsteady Flow near Rotor Tip during Stall Inception[J]. JOURNAL OF THERMAL SCIENCE,2011,20(4):294-303. |
| APA | Geng, Shaojuan,Lin, Feng,Chen, Jingyi,&Nie, Chaoqun.(2011).Evolution of Unsteady Flow near Rotor Tip during Stall Inception.JOURNAL OF THERMAL SCIENCE,20(4),294-303. |
| MLA | Geng, Shaojuan,et al."Evolution of Unsteady Flow near Rotor Tip during Stall Inception".JOURNAL OF THERMAL SCIENCE 20.4(2011):294-303. |
入库方式： OAI收割
来源：工程热物理研究所
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