留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

基于热色液晶的异型气膜孔气膜分布特征的可视化实验

吴阿赛 朱惠人 刘存良 贺宜红 卢聪明 张聪笑

吴阿赛, 朱惠人, 刘存良, 贺宜红, 卢聪明, 张聪笑. 基于热色液晶的异型气膜孔气膜分布特征的可视化实验[J]. 航空动力学报, 2015, 30(2): 376-383. doi: 10.13224/j.cnki.jasp.2015.02.016
引用本文: 吴阿赛, 朱惠人, 刘存良, 贺宜红, 卢聪明, 张聪笑. 基于热色液晶的异型气膜孔气膜分布特征的可视化实验[J]. 航空动力学报, 2015, 30(2): 376-383. doi: 10.13224/j.cnki.jasp.2015.02.016
WU A-sai, ZHU Hui-ren, LIU Cun-liang, HE Yi-hong, LU Cong-ming, ZHANG Cong-xiao. Visualization experiment on film distribution characteristics of shaped film holes based on thermochromic liquid crystal[J]. Journal of Aerospace Power, 2015, 30(2): 376-383. doi: 10.13224/j.cnki.jasp.2015.02.016
Citation: WU A-sai, ZHU Hui-ren, LIU Cun-liang, HE Yi-hong, LU Cong-ming, ZHANG Cong-xiao. Visualization experiment on film distribution characteristics of shaped film holes based on thermochromic liquid crystal[J]. Journal of Aerospace Power, 2015, 30(2): 376-383. doi: 10.13224/j.cnki.jasp.2015.02.016

基于热色液晶的异型气膜孔气膜分布特征的可视化实验

doi: 10.13224/j.cnki.jasp.2015.02.016
基金项目: 

航空科学基金(2014ZB53023)

国家自然科学基金(51306152)

详细信息
    作者简介:

    吴阿赛(1988-),男,河南郑州人,硕士生,主要从事航空发动机热端部件冷却技术研究.

  • 中图分类号: V213.3

Visualization experiment on film distribution characteristics of shaped film holes based on thermochromic liquid crystal

  • 摘要: 通过在气膜孔下游不同位置设置涂有热色液晶的黑色尼龙网,根据尼龙网上的彩色无量纲温度轮廓,对圆柱孔、水滴孔和簸箕孔在吹风比为0.5,1,2下的气膜分布状况进行可视化实验研究.结果表明:气膜孔沿主流流向的扩张会降低出流平均动量,较小程度地减弱了肾形对涡强度,使气膜的覆盖范围和气膜厚度都有所增大;展向扩张使出流平均动量降低的同时使其具有展向速度分量,明显降低了肾形对涡强度,显著增大气膜覆盖范围、降低气膜厚度,增强气膜的贴壁性;吹风比增大使气膜脱离壁面的趋势增强,降低气膜覆盖范围;排孔的相邻孔的出流会相互影响,有利于将气膜压向壁面,相比单孔来讲排孔的冷却效果和气膜覆盖效果更好.

     

  • [1] 朱惠人,许都纯,刘松龄,等.气膜孔形状对流量系数影响的实验研究[J].推进技术,1988,19(1):42-45. ZHU Huiren,XU Duchun,LIU Songling,et al.The experimental investigation in the effects of film cooling holes shape on discharge coefficient[J].Journal of Propulsion Technology,1988,19(1):42-45.(in Chinese)
    [2] 朱惠人,许都纯,刘松龄.气膜孔形状对排孔下游冷却效率的影响[J].航空学报,2002,23(1):75-78. ZHU Huiren,XU Duchun,LIU Songling.Effects of hole shape on film cooling effectiveness[J].Acta Aeronautica et Astronautica Sinica,2002,23(1):75-78.(in Chinese)
    [3] LIU Cunliang,ZHU Huiren,BAI Jiangtao,et al.Film cooling performance of converging slot holes with different exit- entry area ratio[R].ASME Paper 2009-GT-59002,2009.
    [4] BAI Jiangtao,ZHU Huiren,LIU Cunliang.Film cooling characteristic of double-fan shaped film cooling holes[R].ASME Paper 2009-GT-59318,2009.
    [5] LIU Cunliang,ZHU Huiren,BAI Jiangtao,et al.Film cooling performance of waist-shaped slot holes[R].ASME Paper 2010-GT-22237,2010.
    [6] LIU Cunliang,ZHU Huiren,BAI Jiangtao,et al.Experimental and numerical investigation on the film cooling of waist-shaped slot holes comparing with converging slot holes[J].Journal of Turbomachinery,2012,134(1):011021.1-011021.11.
    [7] LIU Cunliang,ZHU Huiren,BAI Jiangtao,et al.Experimental research on the thermal performance of converging slot holes with different divergence angles[J].Experimental Thermal and Fluid Science,2009,33(5):808-817.
    [8] Liu K,Yang S F,Han J C.Influence of coolant density on turbine blade film-cooling with axial shaped holes[R].ASME Paper 2012-HT-58144,2012.
    [9] Liu K,Yang S F,Han J C.Influence of coolant density on turbine blade film-cooling with compound-angle shaped holes[R].ASME Paper 2012-HT-69117,2012.
    [10] Wright L M,McClain S T,Clemenson M D.Effect of density ratio on flat plate film cooling with shaped holes using PSP[R].ASME Paper 2010-GT-23053,2010.
    [11] Wright L M,McClain S T,Clemenson M D.PIV investigation of the effect of freestream turbulence intensity on film cooling from fanshaped holes[R].ASME Paper 2011-GT-46127,2011.
    [12] Saumweber C,Schulz A.Free-stream effects on the cooling performance of cylindrical and fan-shaped cooling holes[J].Journal of Turbomachinery,2012,134(6):061007.1-061007.12.
    [13] Porter J S,Henderson A D,Walker G J.Influence of inlet velocity ratio on the outlet uniformity of a fan-shaped film cooling hole[R].ASME Paper 2009-GT-59581,2009.
    [14] 刘存良,朱惠人,白江涛.收缩-扩张形气膜孔提高气膜冷却效率的机理研究[J].航空动力学报,2008,23(4):598-604. LIU Cunliang,ZHU Huiren,BAI Jiangtao.Study on the physics of film-cooling effectiveness enhancement by the converging-expanding hole[J].Journal of Aerospace Power,2008,23(4):598-604.(in Chinese)
    [15] Hyams D G,Leylek J H.A detailed analysis of film cooling physics:Part Ⅲ streamwise injection with shaped holes[R].ASME Paper 97-GT-271,1997.
    [16] Bunker R S.A review of shaped hole turbine film cooling technology[J].Journal of Heat Transfer,2005,127(4):441-453.
    [17] 梁俊宇,孟宝宝,康顺,等.平板气膜冷却孔下游湍流场的实验研究[J].动力工程学报,2012,32(6):435-439. LIANG Junyu,MENG Baobao,KANG Shun,et al.Experimental study of the turbulent flow downstream of film cooling holes on a flat plate[J].Journal of Chinese Society of Power Engineering,2012,32(6):435-439.(in Chinese)
    [18] Mee D J,Ireland P T,Bather S.Measurement of the temperature field downstream of simulated leading-edge film-cooling holes[J].Experiments in Fluids,1999,27(3):273-283.
    [19] Sargison J E,Oldfield M L G,Guo S M.Flow visualization of the external flow from a converging slot-hole film-cooling geometry[J].Experiments in Fluids,2005,38(3):304-318.
    [20] Ganzert W,Hildebrandt T,Fottner L.Systematic experimental and numerical investigations on the aerothermodynamics of a film cooled turbine cascade with variation of the cooling hole shape:Part 1 experimental approach[R].ASME Paper 2000-GT-295,2000.
    [21] 刘存良.新型高效气膜孔冷却特性研究[D].西安:西北工业大学,2009. LIU Cunliang.Research on the film cooling characteristics of hig-performance shaped film holes[D].Xi'an:Northwestern Polytechnical University,2009.(in Chinese)
  • 加载中
计量
  • 文章访问数:  991
  • HTML浏览量:  1
  • PDF量:  855
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-09-05
  • 刊出日期:  2015-02-28

目录

    /

    返回文章
    返回