Aerodynamic Performance Investigation of Two Ultra-high-lifted Low Pressure Turbine Blades

被引：0
|
作者：
Li, Zi-Liang [1 ,2 ]
Chai, Meng [1 ,2 ]
Zhu, Jun-Qiang [1 ]
机构：
[1] Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing,100190, China
[2] University of Chinese Academy of Sciences, Beijing,100049, China
来源：
Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2018年 / 39卷 / 12期
关键词：
Airfoils - Flow separation - Wakes - Turbines - Reynolds number;
D O I：
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中图分类号：
学科分类号：
摘要：
Two ultra-high lifted low-pressure turbine(LPT) profile with Zweifel lift coefficient of approximately 1.6 are numerically studied at steady and unsteady inflow conditions. The results show that there is always a layer separation bubble located at airfoil suction side for the condition of low Reynolds number and low turbulence intensity. The frond-loaded airfoil is proved to have better profile performance. Besides, the inhabiting effect of unsteady wake to flow separation is insufficient for the ultra-high lifted low-pressure turbine profile and new flow control methods is suggested here. The investigation is believed to be useful to the design of ultra-high lifted low-pressure turbine profile. © 2018, Science Press. All right reserved.
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页码：2603 / 2610
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