Volume 29 Issue 11
Nov.  2014
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TAN Xiao-ming, ZHU Xing-dan, GUO Wen, ZHANG Jing-zhou, WANG Yong-ming, PANG Bing-hua, SU Yun-liang, LIU Song. Heat transfer experiment on film cooling of turbine blade leading edge[J]. Journal of Aerospace Power, 2014, 29(11): 2672-2678. doi: 10.13224/j.cnki.jasp.2014.11.018
Citation: TAN Xiao-ming, ZHU Xing-dan, GUO Wen, ZHANG Jing-zhou, WANG Yong-ming, PANG Bing-hua, SU Yun-liang, LIU Song. Heat transfer experiment on film cooling of turbine blade leading edge[J]. Journal of Aerospace Power, 2014, 29(11): 2672-2678. doi: 10.13224/j.cnki.jasp.2014.11.018

Heat transfer experiment on film cooling of turbine blade leading edge

doi: 10.13224/j.cnki.jasp.2014.11.018
  • Received Date: 2013-10-21
  • Publish Date: 2014-11-28
  • Detailed experimental study on film cooling effect of one enlarged model of turbine blade leading edge cooling structure was carried out. The surface temperature distribution of blade was captured by the infrared radiation camera. The influence of adiabatic cooling efficiency and pressure loss were analyzed by different film angles of leading edge, blow ratios, main flow Reynolds numbers. In the experiment, the range of three-row film angle on leading edge was 35 degree to 90 degree; the range of main flow Reynolds number was 76112-142624, and the range of blow ratio was 0.44-2.64. The results show that: the film cooling on the stagnation region of leading edge is getting better with the decrease of film angle; the pressure loss coefficient is lowest with film angle of 45 degree and highest with film angle of 75 degree; with increase of main flow Reynolds number, the adiabatic cooling efficiency decreases, and the pressure loss coefficient increases; the adiabatic cooling efficiency reaches to the maximum when blow ratio increases to 1.32 and then decreases when blow ratio keeps increasing.

     

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  • [1]
    Najjar Y S H,Alghamdi A S,Al-Beirutty M H.Comparative performance of combined gas turbine systems under three different blade cooling schemes[J].Applied Thermal Engineering,2004,24(13):1919-1934.
    [2]
    Cho H H,Rhee D H.Effects of hole arrangement on local heat/mass transfer for impingement/effusion cooling with small hole spacing[R].ASME Paper 2004-GT-53685,2004.
    [3]
    Lu Y P,Ekkad S V,Bunker R S.Trench film cooling:effect of trench downstream edge and hole spacing[R].ASME Paper GT2008-50606,2008.
    [4]
    郭文,吉洪湖,蔡毅,等.复合式气冷涡轮导叶冷却设计与试验[J].航空动力学报,2005,20(3):456-459. GUO Wen,JI Honghu,CAI Yi,et al.Design and experimental research of compound air-cooled turbine guide vane[J].Journal of Aerospace Power,2005,20(3):456-459.(in Chinese)
    [5]
    Koc I,Parmakszoglu C,Cakan M.Numerical investigation of film cooling effectiveness on the curved surface[J].Energy Conversion and Management,2006,47(9/10):1231-1246.
    [6]
    曾军,王彬,康勇.气膜冷却涡轮导向叶片流场数值模拟[J].燃气涡轮实验与研究,2006,19(4):16-19. ZENG Jun,WANG Bin,KANG Yong.Numerical simulation of flow field in a turbine stator with film cooling[J].Gas Turbine Experiment and Research,2006,19(4):16-19.(in Chinese)
    [7]
    朱延鑫,谭晓茗,郭文,等.叶片前缘复合冷却结构的影响分析[J].工程热物理学报,2013,34(5):938-942. ZHU Yanxin,TAN Xiaoming,GUO Wen,et al.Impact of the blade leading edge composite cooling structure[J].Journal of Engineering Thermophysics,2013,34(5):938-942.(in Chinese)
    [8]
    朱延鑫,谭晓茗,郭文,等.出流孔型对平板气膜冷却影响机理的研究[J].推进技术,2013,34(4):499-505. ZHU Yanxin,TAN Xiaoming,GUO Wen,et al.Numerical simulation on effects of different film cooling holes on plate[J].Journal of Propulsion Technology,2013,34(4):499-505.(in Chinese)
    [9]
    YAO Yu,ZHANG Jingzhou,WANG Liping.Film cooling on a gas turbine blade suction side with converging slot-hole[J].International Journal of Thermal Sciences,2013,65:267-279.
    [10]
    DONG Ping,WANG Qiang,GUO Zhaoyuan,et al.Conjugate calculation of gas turbine vanes cooled with leading edge films[J].Chinese Journal of Aeronautics,2009,22(2):145-152.
    [11]
    York W D,Leylek J H.Leading edge film cooling physics:Part Ⅰ adiabatic effectiveness[R].ASME Paper 2002-GT-30167,2002.
    [12]
    York W D,Leylek J H.Leading-edge film cooling physics:Part Ⅱ heat transfer coefficients[R].ASME Paper 2002-GT-30167,2002.
    [13]
    朱惠人,向安定,许都纯,等.涡轮叶片表面气膜冷却效率的实验研究[J].推进技术,2003,24(6):528-531. ZHU Huiren,XIANG Anding,XU Duchun,et al.An experimental investigation of film cooling effectiveness on the surface of turbine blade[J].Journal of Propulsion Technology,2003,24(6):528-531.(in Chinese)
    [14]
    李广超,朱惠人,白江涛,等.气膜孔布局对前缘气膜冷却效率影响的实验[J].推进技术,2008,29(2):153-157. LI Guangchao,ZHU Huiren,BAI Jiangtao,et al.Experimental investigation on film cooling effectiveness on leading edge with various geometries[J].Journal of Propulsion Technology,2008,29(2):153-157.(in Chinese)
    [15]
    Ekkad S V,Ou S,Rivir R B.A transient infrared thermogrpahy method for simultaneous film cooling effectiveness and heat transfer coefficient measurements from a single test[J].Journal of Turbomachinery,2004,126(4):597-603.
    [16]
    Lu P Y,Allison D,Ekkad S V.Turbine blade showerhead film cooling:influence of hole angle and shaping[J].International Journal of Heat and Fluid Flow,2007,28(5):922-931.
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