Numerical Simulation of Clocking Effect on Blade Unsteady Aerodynamic Force in Axial Turbine
文献类型：期刊论文
| 作者 | LI Wei; ZHU Xiao-cheng; OUYANG Hua; DU Zhao-hui |
| 刊名 | JOURNAL OF THERMAL SCIENCE
 |
| 出版日期 | 2012 |
| 卷号 | 21页码:474,482 |
| 关键词 | Axial Turbine Clocking Effect Numerical Simulation |
| 英文摘要 | To give an insight into the clocking effect and its influence on the wake transportation and its interaction, the unsteady three-dimensional flow through a 1.5-stage axial low pressure turbine is simulated numerically by using a density-correction based, Reynolds-Averaged Navier-Stokes equations commercial CFD code. The 2nd stator clocking is applied over ten equal tangential positions. The results show that the harmonic blade number ratio is an important factor affecting the clocking effect. The clocking effect has very small influence on the turbine efficiency in this investigation. The difference between the maximum and minimum efficiency is about 0.1%. The maximum efficiency can be achieved when the 1st stator wake enters the 2nd stator passage near blade suction surface and its adjacent wake passes through the 2nd stator passage close to blade pressure surface. The minimum efficiency appears if the 1st stator wake impinges upon the leading edge of the 2nd stator and its adjacent wake of the 1st stator passes through the mid-channel in the 2nd stator. The wake convective transportation and the blade circulation variation due to its impingement on the subsequent blade are the main mechanism affecting the pressure variation in blade surface. |
| 公开日期 | 2013-01-31 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/51890]  |
| 专题 | 工程热物理研究所_Journal of Thermal Science |
| 推荐引用方式 GB/T 7714 | LI Wei,ZHU Xiao-cheng,OUYANG Hua,et al. Numerical Simulation of Clocking Effect on Blade Unsteady Aerodynamic Force in Axial Turbine[J]. JOURNAL OF THERMAL SCIENCE,2012,21:474,482. |
| APA | LI Wei,ZHU Xiao-cheng,OUYANG Hua,&DU Zhao-hui.(2012).Numerical Simulation of Clocking Effect on Blade Unsteady Aerodynamic Force in Axial Turbine.JOURNAL OF THERMAL SCIENCE,21,474,482. |
| MLA | LI Wei,et al."Numerical Simulation of Clocking Effect on Blade Unsteady Aerodynamic Force in Axial Turbine".JOURNAL OF THERMAL SCIENCE 21(2012):474,482. |
入库方式： OAI收割
来源：工程热物理研究所
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