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宽高比对微小通道空气流动换热特性影响实验

刘阳鹏 徐国强 李海旺 田一土

刘阳鹏, 徐国强, 李海旺, 等 . 宽高比对微小通道空气流动换热特性影响实验[J]. 北京航空航天大学学报, 2015, 41(7): 1253-1258. doi: 10.13700/j.bh.1001-5965.2014.0524
引用本文: 刘阳鹏, 徐国强, 李海旺, 等 . 宽高比对微小通道空气流动换热特性影响实验[J]. 北京航空航天大学学报, 2015, 41(7): 1253-1258. doi: 10.13700/j.bh.1001-5965.2014.0524
LIU Yangpeng, XU Guoqiang, LI Haiwang, et al. Experiment of air flow behavior and heat transfer characteristics in microchannels with different aspect ratios[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(7): 1253-1258. doi: 10.13700/j.bh.1001-5965.2014.0524(in Chinese)
Citation: LIU Yangpeng, XU Guoqiang, LI Haiwang, et al. Experiment of air flow behavior and heat transfer characteristics in microchannels with different aspect ratios[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(7): 1253-1258. doi: 10.13700/j.bh.1001-5965.2014.0524(in Chinese)

宽高比对微小通道空气流动换热特性影响实验

doi: 10.13700/j.bh.1001-5965.2014.0524
基金项目: 中央高校基本科研业务费专项资金(YWF-14-DLXY-021)
详细信息
    作者简介:

    刘阳鹏(1987—),男,山西长治人,博士研究生,282927365@qq.com

    通讯作者:

    李海旺(1982—),男,河北唐山人,副教授,09620@buaa.edu.cn,主要研究方向为高温旋转部件的流动与换热.

  • 中图分类号: V231.1

Experiment of air flow behavior and heat transfer characteristics in microchannels with different aspect ratios

  • 摘要: 针对不同宽高比微小矩形通道内流动和换热特性进行了实验研究.微小矩形通道宽0.4mm,宽高比分别为2/5、1/2、2/3和1.实验以空气作为工质.流动雷诺数Re范围是200~1600.实验结果表明:宽高比对微小矩形通道流动换热特性的影响不可忽略.微小矩形通道摩擦因子随着Re增大而减小,泊肃叶数Po随着Re增大而增大,二者随着宽高比增大同时减小;努塞尔数Nu随着Re增大而增大,随着宽高比增大而减小.针对宽高比对微小矩形通道流动换热特性的影响拟合了相应经验关系式.

     

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出版历程
  • 收稿日期:  2014-08-25
  • 修回日期:  2014-10-27
  • 网络出版日期:  2015-07-20

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