突片射流冲击冷却换热特性的实验

余业珍; 张靖周; 杨卫华

突片射流冲击冷却换热特性的实验

1.
南京航空航天大学能源与动力学院, 南京 210016
2.
南京师范大学动力工程学院, 南京 210016

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出版历程
- 收稿日期: 2006-12-26
- 修回日期: 2007-03-12
- 刊出日期: 2007-09-28

Experimental study of the effects of tabs on jet impingement heat transfer

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2.
College of Power Engineering, Nanjing Normal University, Nanjing 210016, China

摘要

摘要: 对涡激励突片的单排圆形射流冲击冷却特性进行了实验研究.主要对突片堵塞比、突片形状和突片安装角度对冲击换热特性的影响进行了实验研究, 并揭示了其影响规律.研究结果表明:在研究的参数范围内, 突片的几何形状及安装角对射流冲击换热有较显著的影响, 并根据其影响规律, 对突片的结构设计提出了有价值的参考意见.
- 航空、航天推进系统 /
- 射流冲击 /
- 突片 /
- 实验研究
Abstract: The impingement characteristics of a circular jet with vortex-generating tabs were investigated experimentally.This experiment was focused on the effects of blockage ratio,shape and installation angle of tabs on impingement heat transfer,revealing that the shapes and installation angle of tabs have great influence upon the convective heat transfer of impingement.According to the pattern of influence,beneficial reference opinions were raised on the structural designs of tabs.
- aerospace propulsion system /
- jet impingement /
- tabs /
- experimental investigation

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参考文献(11)

[1]	Webb B W,Ma C F.Single-phase liquid jet impingement heat transfer[R].Advances in Heat Transfer,26,Academic Press,San Diego:1995:105-217.
[2]	Colucci D,Viskanta R.Effect of nozzle geometry on local convective heat transfer to a confined impinging air jet[J].Exp.Therm.Fluid Sci.,1996,13:71-80.
[3]	Lee J,Lee S J.The effect of nozzle configuration on stagnation region heat transfer enhancement of axisymmetric jet impingement[J].Int.J.Heat Mass Trans,2000,43:3497-3509.
[4]	Zumbrunen D A,Aziz M.Convective heat transfer enhancement due to intermittency in an impinging jet[J].Journal of Heat Transfer,1993,115:91-98.
[5]	李发军,苑中显,马重芳,等.脉冲射流冲击冷却换热的液晶显示实验研究[J].工程热物理学报,2002,23(2):193-196.LI Fajun,YUAN Zhongxian,MA Chongfang,et al.Experimental study of heat transfer of pulsing jet impingement with liquid crystal technique[J].Journal of Engineering Thermophysics,2002,23(2):193-196.
[6]	Liu T,Sullivan J P.Heat transfer and flow structure in a excited circular impinging jet[J].Int.J.Heat Mass Trans.,1996,39(17):3695-3706.
[7]	陈玉阳,苑中显,马重芳,等.旋转射流冲击换热液晶显示实验研究[J].工程热物理学报,2003,24(4):646-648.CHEN Yuyang,YUAN Zhongxian,MA Chongfang,et al.Experimental study of heat transfer of swirling jet impingement with liquid crystal technique[J].Journal of Engineering Thermophysics,2003,24(4):646-648.
[8]	Bradbury L J,Khadem A H.The distortion of a jet by tabs[J].Journal of Fluid Mechnics,1975,70(4):801-813.
[9]	Zhang S C,Scheider S P.Molecular-mixing measurements and turbulent structure visualization in a round jet with tabs[R].AIAA Paper 94-3082,1994.
[10]	Wang X K,Chua L P,Yu S C M.On the near-field of a square jet with vortex-generating tabs[J].Fluid Dynamics Research,2003,32:99-117.
[11]	张泽远,张靖周,杨卫华.半封闭通道射流冲击冷却换热特性的实验[J].航空动力学报,2006,21(4):626-630.ZHANG Zeyuan,ZHANG Jingzhou,YANG Weihua.Convective heat transfer of jet impingement inside semi-confined channel[J].Journal of Aerospace Power,2006,21(4):626-630.