Volume 31 Issue 11
Nov.  2005
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Yang Lin, Feng Tao, Zou Zhengping, et al. Analysis of turbine flow field under low Reynolds number condition[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(11): 1194-1197. (in Chinese)
Citation: Yang Lin, Feng Tao, Zou Zhengping, et al. Analysis of turbine flow field under low Reynolds number condition[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(11): 1194-1197. (in Chinese)

Analysis of turbine flow field under low Reynolds number condition

  • Received Date: 10 Aug 2004
  • Publish Date: 30 Nov 2005
  • The flow field in turbine was investigated using three-dimensional numerical simulation method. The flow structures in different altitude were compared and analyzed, to show the effect on flow structure and turbine performance with the decrease of Reynolds number. The results indicate that on the condition of high altitude, the Reynolds number is decreased nearly one order, and the blade loading distribution is changed, large separation is found on blade suction surface, and secondary flow and radial mixing effects enhance obviously, so that the performance is changed worse and the efficiency is dropped rapidly. These factors should be paid more attention to the aerodynamic design of turbine under low Reynolds number condition. Moreover the selection of loading distribution form is also an important factor of the design.

     

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  • [1] 邹正平,宁方飞,刘火星,等.雷诺数对涡轮叶栅流动的影响[J].工程热物理学报,2004,25(2):216~219 Zou Zhengping, Ning Fangfei, Liu Huoxing, et al. Effect of Reynolds number on turbine cascade flow[J]. Journal of Engineering Thermophysics, 2004, 25(2):216~219(in Chinese) [2] Weinberg M, Wyzykowski J. Development and testing of a commercial turbofan engine for high altitude UAV applications. SAE 2001-01-2972, 2001 [3] 胡晓煜.高高空、长航时无人机动力技术简介[J].航空周刊,2002,10(40/41):19~20 Hu Xiaoyu. Introduction of the power for unmanned aerial vehicles on high altitude and long time flighting[J]. Aviation Weekly, 2002,10(41/42):19~20(in Chinese) [4] Lake J P, King P I, Rivir R B. Reduction of separation losses on a turbine blade with low Reynolds number. AIAA 99-0242, 1999 [5] 李 维,邹正平,赵晓路.雷诺数对涡轮部件性能的影响[J].航空动力学报,2004,19(6):822~827 Li Wei, Zou Zhengping, Zhao Xiaolu. Effect of Reynolds number on turbine performance[J]. Journal of Aerospace Power, 2004,19(6):822~827(in Chinese) [6] 宁方飞,邹正平,胡国荣,等.低雷诺数跨音压气机风扇转子的数值模拟. 第五届动力年会(三),叶轮机分册. 北京:中国航空学会动力专业分会,2003.65~72 Ning Fangfei, Zou Zhengping, Hu Guorong, et al. Simulation of transonic compressor and fan under low Reynolds number condition. In:The 5th Aviation Congress(3), Turbomachinery. Beijing:Chinese Society of Aeronautics and Astronautics, Technical Committee of Aerospace Power, 2003.65~72(in Chinese)
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