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Volume 31 Issue 02
Feb.  2005
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Journal of Beijing University of Aeronautics and Astronautics  > 2005  >  31(02): 202-205.
Zhou Yuanjun, Zhao Yunkun, Ge Yunhaiet al. Fault-tolerant control method and characteristic analysis of hydraulic redundant EMA system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(03): 285-289. (in Chinese)
Citation: Li Li, Ding Shuiting, Tao Zhi, et al. Heat transfer in complex passages of turbine blade trailing edge[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(02): 202-205. (in Chinese)
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Heat transfer in complex passages of turbine blade trailing edge

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 20 Jun 2004
  • Publish Date: 28 Feb 2005
    Abstract
  • An experimental comparison research of endwall heat transfer characteristics was conducted in the complex passages of turbine blade trailing edge by using thermochromic liquid crystal method. Three kinds of diaphragm plates between two passages were studied to obtain optimal heat transfer effect. Results indicate that the radial inflow cooling air in first passage passes through the orifices in the diaphragm plates ceaselessly then changes to spanwise cooling air, which impinges the second passage and flows away through the orifices along the trailing edge can enhance heat transfer of the trailing edge; uniform configuration of orifices in diaphragm plate provides better heat transfer effect than that of others.

     

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    • References(1)
  • [1] Brown A, Mandjikas B, Mudyiwa J M. Blade trailing edge heat transfer .ASME80-GT-45,1980 [2] Metzger D E, Shepard W B, Haley S W. Row resolved heat transfer variations in pin-fin arrays including effects of non-uniform arrays and flow convergence .ASME86-GT-132,1986 [3] Hwang J J, Lui C C. Detailed heat transfer characteristic comparison in straight and 90-deg turned trapezoidal ducts with pin-fin arrays [J]. International Journal of Heat and Mass Transfer,1999,42:4005~4016 [4] 顾维藻,张玉明,刘长春. 带孔板及扰流柱楔形通道内的流动及换热[J].航空动力学报,1989,4(4):373~379 Gu Weizao, Zhang Yuming, Liu Changchun. Flow visualization and heat transfer in trapezoidal ducts with orifice plate and pin-fin arrays [J].Journal of Aerospace Power,1989,4(4):373~379(in Chinese)
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