Flow Structures in the Tip Region for a Transonic Compressor Rotor
文献类型：期刊论文
| 作者 | Du, Juan1; Lin, Feng1; Chen, Jingyi1; Nie, Chaoqun1; Biela, Christoph2 |
| 刊名 | JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME
 |
| 出版日期 | 2013-05-01 |
| 卷号 | 135期号:3 |
| 英文摘要 | Numerical simulations are carried out to investigate flow structures in the tip region for an axial transonic rotor, with careful comparisons with the experimental results. The calculated performance curve and two-dimensional (2D) flow structures observed at casing, such as the shock wave, the expansion wave around the leading edge, and the tip leakage flow at peak efficiency and near-stall points, are all captured by simulation results, which agree with the experimental data well. An in-depth analysis of three-dimensional flow structures reveals three features: (1) there exists an interface between the incoming main flow and the tip leakage flow, (2) in this rotor the tip leakage flows along the blade chord can be divided into at least two parts according to the blade loading distribution, and (3) each part plays a different role on the stall inception mechanism in the leakage flow dominated region. A model of three-dimensional flow structures of tip leakage flow is thus proposed accordingly. In the second half of this paper, the unsteady features of the tip leakage flows, which emerge at the operating points close to stall, are presented and validated with experiment observations. The numerical results in the rotor relative reference frame are first converted to the casing absolute reference frame before compared with the measurements in experiments. It is found that the main frequency components of simulation at absolute reference frame match well with those measured in the experiments. The mechanism of the unsteadiness and its significance to stability enhancement design are then discussed based on the details of the flow field obtained through numerical simulations. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Mechanical |
| 研究领域[WOS] | Engineering |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000326021300012 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/98842]  |
| 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 Adv Energy & Power, Beijing 100190, Peoples R China 2.Tech Univ Darmstadt, D-64287 Darmstadt, Germany |
| 推荐引用方式 GB/T 7714 | Du, Juan,Lin, Feng,Chen, Jingyi,et al. Flow Structures in the Tip Region for a Transonic Compressor Rotor[J]. JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME,2013,135(3). |
| APA | Du, Juan,Lin, Feng,Chen, Jingyi,Nie, Chaoqun,&Biela, Christoph.(2013).Flow Structures in the Tip Region for a Transonic Compressor Rotor.JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME,135(3). |
| MLA | Du, Juan,et al."Flow Structures in the Tip Region for a Transonic Compressor Rotor".JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME 135.3(2013). |
入库方式： OAI收割
来源：工程热物理研究所
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