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流体横掠微针肋阵列热沉的阻力特性 被引量：1

PRESSURE DROP CHARACTERISTICS OF FLOW ACROSS A BANK OF MICRO PIN FINS
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摘要 本文以去离子水作为冷却工质,研究了在低Re下流体横向冲刷微针肋阵列时的阻力特性,所用微针肋阵列肋高200μm,直径120μm,为转置正方形叉排结构。实验结果与可利用关联式的对比表明,现存宏观尺度上的关联式不能很好地预测流体横掠微针肋阵列热沉的阻力特性,特别是在Re大于140时,实验结果要高于关联式预测值。 This paper experimentally investigates pressure drop characteristics of de-ionized water through a bank of staggered circular pin-fins with 100 μm height and diameter of 120μm at lower Re. It is found that existing conventional scale correlations are not able to predict the friction factors accurately at the micro scale. Especially, the experimental data are higher than the predicted data obtained from conventional scale correlations for Re 〉 140.
作者 夏国栋 孔凡金 李宴君 齐景智
机构地区 传热强化与过程节能教育部重点实验室及传热与能源利用北京市重点实验室
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2009年第2期249-252,共4页 Journal of Engineering Thermophysics
基金 北京市教育委员会科技计划重点项目(No．KZ200710005001) 国家自然科学基金项目(No．50876003) 北京市创新人才项目(No．HR200906104) 教育部博士点学科专项科研基金(No．20070005009)
关键词 微针肋 热沉 摩擦阻力系数 压降特性 micro pin fin heat sink friction factor pressure drop characteristics
分类号 TK124 [动力工程及工程热物理—工程热物理]
  • 相关文献

参考文献7

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  • 2Y Peles, A Kosar, C Mishra, et al. Forced Convective Heat Transfer Across a Pin Fin Micro Heat Exchanger. Int. J. Heat Mass Transfer, 2005, 48:3615-3627
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共引文献25

同被引文献9

  • 1QU Wei-lin, SIU-Ho A. Liquid single-phase flow in an ar- ray of micro-pin-fins-Part lI: pressure drop characteristics [J]. Journal of Heat Transfer,2008,130 (12) : 124501-1-4.
  • 2Qu Wei-lin, SIU-Ho A. Liquid single-phase flow in an ar- ray of micro-pin-fins-part I: heat transfer characteristics [J].Journal of Heat Transfer, 2008,130 ( 12 ) : 122402-1 - 11.
  • 3KOSAR A, MISHRA C, PELES Y. Laminar flow across a bank of low aspect ratio micro pin fin[J].Journal of Fluids Engineering, 2005,127 (3) :419-430.
  • 4KOSAR A, PELES Y. Thermal-hydraulic performance of MEMS-based pin fin heat sink[ J]. J Heat Transfer,2006, 128:121-131.
  • 5KOSAR A, PELES Y. Convective flow of refrigerant ( R- 123) across a bank of micro pin fins[J]. Int J Heat Mass Transfer, 2006,49 : 3142 -3155.
  • 6KOSAR A,, PELES Y. Boiling heat transfer in a hydrofoil- based micro pin fin heat sink [ J ]. Int J Heat Mass Trans- fer,2007,50 : 1018-1034.
  • 7PRASHER R S, DIRNER J J Y, et al. Nusseh number and friction factor of staggered arrays of low aspect ratio mi- cropin-fins under cross flow for water as fluid [ J ]. Journal of Heat Transfer, 2007,129 : 141-153.
  • 8SIU-Ho A, QU Wei-lin. Experimental study of pressure drop and heat tansfer in a single-phase micropin-fin heat sink [ J ]. Journal of Electronic Packaging,2007,129 (4) : 479-487.
  • 9夏国栋,罗光亮,李晏君,杨鲁伟.流体横掠圆形微针肋热沉流动与传热特性[J].工程热物理学报,2009,30(4):621-624. 被引量：9

引证文献1

二级引证文献9

工程热物理学报
2009年 第2期

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