Numerical Simulation of Blade Tip Clearance Flow in Engine Cooling Fan

RUI Hong-bin, WEI Lang, LIU Kai

China Journal of Highway and Transport ›› 2014, Vol. 27 ›› Issue (2) : 120-126.

PDF Full Text Download(1072 KB)
PDF Full Text Download(1072 KB)
China Journal of Highway and Transport ›› 2014, Vol. 27 ›› Issue (2) : 120-126.

Numerical Simulation of Blade Tip Clearance Flow in Engine Cooling Fan

  • RUI Hong-bin1,2, WEI Lang1, LIU Kai2
Author information +
History +

Abstract

The influence of the relative motion of air deflector and flow-guiding ring on the blade tip clearance airflow, the pressure distribution of clearance region under design condition, and the flow behavior of leakage eddy flow were analyzed by the numerical method to study the influence of the complex flow and clearance airflow of automotive engine cooling fan blade tip clearance flow on the aerodynamic performance. The computational fluid dynamics (CFD) numerical results were verified by the flow velocity distribution in the automotive engine cooling fan blade tip clearance region, which was measured with the flow field visualization. The results show that with the decrease of the work static pressure, the direction of air flow changes and its leakage is obviously decreased because of the viscous force when the velocity of the high-speed leakage jet in the blade tip clearance region has significant difference with the circumferential speed of flow-guiding ring wall airflow.

Key words

automotive engineering / engine cooling fan / numerical simulation / blade tip clearance flow / leakage eddy flow / computational fluid dynamics

Cite this article

Download Citations
RUI Hong-bin, WEI Lang, LIU Kai. Numerical Simulation of Blade Tip Clearance Flow in Engine Cooling Fan[J]. China Journal of Highway and Transport, 2014, 27(2): 120-126

References

[1] 耿丽珍,袁兆成,李传兵,等.轿车发动机冷却风扇CFD仿真分析及降噪研究[J].汽车工程,2009,31(7):664-668. GENG Li-zhen,YUAN Zhao-cheng,LI Chuan-bing,et al.A Study on CFD Simulation Analysis and Noise Reduction for the Cooling Fan of Car Engine[J].Automotive Engineering,2009,31(7):664-668.
[2] 肖红林,石月奎,王海洋,等.大型车辆冷却风扇数值模拟的研究[J].汽车工程,2011,33(7):636-640. XIAO Hong-lin,SHI Yue-kui,WANG Hai-yang,et al.A Study on the Numerical Simulation for the Cooling Fan of Large Vehicle[J].Automotive Engineering,2011,33(7):636-640.
[3] FRANK P B.Fan Handbook:Selection,Application,and Design[M].New York:McGraw-Hill,1997.
[4] 上官文斌,吴 敏,王益有,等.发动机冷却风扇气动性能的计算方法[J].汽车工程,2010,32(9):799-802. SHANGGUAN Wen-bin,WU Min,WANG Yi-you,et al.Calculation Method of Aerodynamic Performances of Engine Cooling Fans[J].Automotive Engineering,2010,32(9):799-802.
[5] BOOTH T C,DODGE P R,HEPWORTH H K.Rotor-tip Leakage:Part l—Basic Methodology[J].Journal for Engineering for Power,1982,104(1):154-161.
[6] PAPA M,GOLDSTEIN R,GORI F.Effects of Tip Geometry and Tip Clearance on the Mass/Heat Transfer from a Large-scale Gas Turbine Blade[J].Journal of Turbomachinery,2003,125(1):91-96.
[7] 牛茂升,臧述升.叶片转动对涡轮间隙内部流动影响的数值研究[J].力学学报,2009,41(5):628-634. NIU Mao-sheng,ZANG Shu-sheng.Simulation of Effects of Blade Rotation on Tip Clearance Flow in Axial Turbines[J].Chinese Journal of Theoretical and Applied Mechanics,2009,41(5):628-634.
[8] 戴辰辰,郭鹏程,罗兴锜.轴流泵端壁间隙流动特性的数值分析[J].流体机械,2009,37(6):32-35. DAI Chen-chen,GUO Peng-cheng,LUO Xing-qi.Numerical Analysis of Tip Clearance Flow Characteristic in Axial Flow Pump[J].Fluid Machinery,2009,37(6):32-35.
[9] 吴艳辉,楚武利,卢新根.间隙区域的流动结构对压气机气动性能的影响[J].工程热物理学报,2006,27(6):950-952. WU Yan-hui,CHU Wu-li,LU Xin-gen.The Effect of Tip Leakage Flow Structure on Compressor Aerodynamics[J].Journal of Engineering Hermophysics,2006,27(6):950-952.
[10] 芮宏斌.一种在导流罩和叶顶面导流环布置叶顶封严迷宫的泄漏流被动控制方法:中国,201210520663.7[P].2013-03-27. RUI Hong-bin.A Passive Control Method for Leakage in Labyrinth Sealed with Dome and Blade Tip Guiding Flow Ring:China,201210520663.7[P].2013-03-27.
[11] 王福军.计算流体动力学分析——CFD软件原理与应用[M].北京:清华大学出版社,2004. WANG Fu-jun.Computational Fluid Dynamics Analysis:Principle and Application of CFD Software[M].Beijing:Tsinghua University Press,2004.
PDF Full Text Download(1072 KB)

1665

Accesses

0

Citation

Detail

Sections
Recommended

/