Circumferential Propagation of Tip Leakage Flow Unsteadiness for a Low-Speed Axial Compressor
文献类型：期刊论文
| 作者 | Shaojuan Geng1; Feng Linl; Jingyi Chenl; Hongwu Zhangl; Lei He2 |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2009 |
| 卷号 | 18期号:3页码:202,206 |
| 英文摘要 | Full-annulus three-dimensional unsteady numerical simulations were conducted for a low-speed isolated axial compressor rotor, intending to identify the behavior of self-induced unsteady tip leakage flow within multi-blade passages. There is a critical mass flow rate near stall point, below it, the self-induced unsteadiness of tip leakage flow can propagate circumferentially and thus initiates two circumferential waves. Otherwise, the self-induced unsteady tip leakage flow oscillates synchronously in each single blade passage. The major findings are: 1) while the self-induced unsteadiness of tip leakage flow is a single-passage phenomenon, there exist phase shifts among blade passages in multi-passage environments then evolving into the first short length wave propagating at about two times of rotor rotation speed after the transient period ends; and 2) the time traces of the pseudo sensors located on the rotor blade tips reveal another much longer length-scale wave modulated with the first wave due to phase shift propagating at about half of rotor rotation speed. Features of the short and long length-scale circumferential waves are similar to those of rotating instability and modal wave, respectively |
| 公开日期 | 2013-01-09 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/51801]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science |
| 推荐引用方式 GB/T 7714 | Shaojuan Geng1,Feng Linl,Jingyi Chenl,et al. Circumferential Propagation of Tip Leakage Flow Unsteadiness for a Low-Speed Axial Compressor[J]. JOURNAL OF THERMAL SCIENCE,2009,18(3):202,206. |
| APA | Shaojuan Geng1,Feng Linl,Jingyi Chenl,Hongwu Zhangl,&Lei He2.(2009).Circumferential Propagation of Tip Leakage Flow Unsteadiness for a Low-Speed Axial Compressor.JOURNAL OF THERMAL SCIENCE,18(3),202,206. |
| MLA | Shaojuan Geng1,et al."Circumferential Propagation of Tip Leakage Flow Unsteadiness for a Low-Speed Axial Compressor".JOURNAL OF THERMAL SCIENCE 18.3(2009):202,206. |
入库方式： OAI收割
来源：工程热物理研究所
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