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对流换热系数的瞬态测量技术

丁水汀 姜祖岗 徐国强 罗翔

丁水汀, 姜祖岗, 徐国强, 等 . 对流换热系数的瞬态测量技术[J]. 北京航空航天大学学报, 2010, 36(8): 883-886.
引用本文: 丁水汀, 姜祖岗, 徐国强, 等 . 对流换热系数的瞬态测量技术[J]. 北京航空航天大学学报, 2010, 36(8): 883-886.
Ding Shuiting, Jiang Zugang, Xu Guoqiang, et al. Transient measurement of heat transfer coefficient[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(8): 883-886. (in Chinese)
Citation: Ding Shuiting, Jiang Zugang, Xu Guoqiang, et al. Transient measurement of heat transfer coefficient[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(8): 883-886. (in Chinese)

对流换热系数的瞬态测量技术

详细信息
    作者简介:

    丁水汀(1967-),男,辽宁铁岭人,教授,dst@buaa.edu.cn.

  • 中图分类号: V 231.3

Transient measurement of heat transfer coefficient

  • 摘要: 使用等热流法瞬态实验测量对流换热系数:基于流动稳定及热平衡条件下对测量表面突加一稳定热流,测出测量表面高低两种窄幅热色液晶的显色时间,根据窄幅液晶的显色温度及其时间通过求解一维半无限大平板非稳态导热方程得到对流换热系数.推导出此方法的误差传递公式,在此基础上分析如何得到准确的对流换热系数.最后给出热流法测对流换热系数的实验流程,并通过自由盘实验验证热流法测对流换热系数的可行性.

     

  • [1] Newton P J,Yan Y,Stevens N E.Transient heat transfer measurements using thermochromic liquid crystal.part 1:An improved technique[J].International Journal of Heat and Fluid Flow,2003,24:14-22 [2] Butler R,Baughn J.The effect of the thermal boundary condition on transient method heat transfer measurements on a flat plate with a laminar boundary layer[J].Journal of Heat Transfer,1996,118:833-837 [3] Owen J M,Newton P J,Lock G D.Transient heat transfer measurements using thermochromic liquid crystal.Part 2:Experimental uncertainties[J].International Journal of Heat and Fluid Flow ,2003,24:14-22 [4] Kingsley-Rowe J R,Lock G D,Owen J M.Transient heat transfer measurements using thermochromic liquid crystal:lateral-conduction error[J].International Journal of Heat and Fluid Flow,2005,26:256-263 [5] Wolfersdorf J V.Influence of lateral conduction due to flow temperature variations in transient heat transfer measurements[J].Journal of Heat and Mass Transfer ,2007,50:1122-1127 [6] Yan Y,Owen J M.Uncertainties in transient heat transfer measurements with liquid crystal[J].Journal of Heat and Fluid Flow,2002,23:29-35 [7] Lock G,Yan Y,Newton P J,et al.Heat transfer measurements using liquid crystals in a preswirl rotating-disk system[J].Journal of Engineering for Gas Turbines and Power,2005,127:375-382
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出版历程
  • 收稿日期:  2009-06-16
  • 网络出版日期:  2010-08-30

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