Volume 26 Issue 12
Dec.  2011
Turn off MathJax
Article Contents
Article Navigation >  Journal of Aerospace Power  > 2011  >  26(12): 2710-2715
LIU Xiao-hong, TAO Zhi, LUO Xiang. Experimental investigation on effect of small auxiliary holes on film cooling effectiveness[J]. Journal of Aerospace Power, 2011, 26(12): 2710-2715.
Citation: LIU Xiao-hong, TAO Zhi, LUO Xiang. Experimental investigation on effect of small auxiliary holes on film cooling effectiveness[J]. Journal of Aerospace Power, 2011, 26(12): 2710-2715.
shu

Experimental investigation on effect of small auxiliary holes on film cooling effectiveness

  • National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 2011-01-11
  • Rev Recd Date: 2011-03-04
  • Publish Date: 2011-12-28
    Abstract
  • Experimental study was conducted to investigate the effect of small auxiliary holes on the film cooling performance.The steady-state thermochromic liquid crystal (TLC) method was used to obtain the adiabatic effectiveness distributions on the flat surface.Measurements of adiabatic effectiveness were presented for cylindrical hole,fan-shaped hole,furcated hole and parallel hole with main flow Reynolds number at 2900,blowing ratio ranging from 0.3 to 3.0 and density ratio at 1.06.Results show that the film coverage and adiabatic effectiveness downstream of furcated hole and parallel hole are evidently superior to those of cylindrical hole at blowing ratios range from 0.3 to 3.0.While fan-shaped hole increases the adiabatic effectiveness compared with cylindrical hole only in cases of blowing ratios greater than 1.0.A higher blowing ratio means more obvious improvement of the adiabatic effectiveness.

     

    • FullText(HTML)
  • loading
    • References(12)
  • [1]
    韩介勤,杜达,艾卡德.燃气轮机传热和冷却技术[M].西安:西安交通大学出版社,2005.
    [2]
    Gritsch M,Schulz A,Wittig S.Adiabatic wall effectiveness measurements of film-cooling holes with expanded exits[J].ASME Journal of Turbomachinery,1998,120(3):549-556.
    [3]
    Gritsch M,Schulz A,Wittig S.Effect of internal coolant cross flow on the effectiveness of shaped film-cooling holes[J].ASME Journal of Turbomachinery,2003,125(3):547-554.
    [4]
    Lee H W,Park J J,Lee J S.Flow visualization and film cooling effectiveness measurements around shaped holes with compound angle orientations[J].Heat and Mass Transfer,2002,45(1):145-156.
    [5]
    Ronald S B.A review of shaped hole turbine film cooling technology[J].ASME Journal of Heat Transfer,2005,127(4):441-453.
    [6]
    Sargison J E,Guo S M,Oldfield M L G,et al.A converging slot hole film cooling geometry Part 1:Low-speed flat-plate heat transfer and loss[J].ASME Journal of Turbomachinary,2002,124(3):453-460.
    [7]
    Azzi A,Jubran B A.Numerical modeling of film cooling from converging slot-hole[J].Heat Mass Transfer,2007,43(4):381-388.
    [8]
    Zaman K B M Q,Foss J K.The effect of vortex generators on a jet in a cross-flow[J].Physics of Fluid,1997,9(1):106-114.
    [9]
    Giovanna B,Giuseppe F,Antonio P.Effect of an upstream ramp on cylindrical and fan-shaped hole film cooling-PartⅠ:Aerodynamic results[C]//ASME Turbo Expo:Power for Land,Sea,and Air.Montreal,Canada:ASME,2007:105-113.
    [10]
    Dhungel A,Lu Y P,Phillips W,et al.Film cooling from a row of holes supplemented with anti-vortex holes[C]//ASME Turbo Expo:Power for Land,Sea,and Air.Montreal,Canada:ASME,2007:375-384.
    [11]
    Heidmann J D,Ekkad S V.A novel anti-vortex turbine film-cooling hole concept[C]//ASME Turbo Expo:Power for Land,Sea,and Air.Montreal,Canada:ASME,2007:487-496.
    [12]
    刘晓红,罗翔,陶智.大小孔交替排列对气膜冷却效率的影响[J].北京航空航天大学学报,2010,36(11):1271-1274. LIU Xiaohong,LUO Xiang,TAO Zhi.Effects of cylindrical hole accompanied with anti-vortex holes on the film cooling effectiveness[J].Journal of Beijing University of Aeronautics and Astronautics,2010,36(11):1271-1274.(in Chinese)
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Get Citation
    PDF(945.0KB)
    XML

    Article Metrics

    Article views (2009) PDF downloads(14) Cited by()
    Proportional views
    Related

    Copyright © 《Journal of Aerospace Power》 All Rights Reserved.

    Supported by: Beijing Renhe Information Technology Co., Ltd.  

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return