| 受限空气射流冲击矩形柱鳍热沉换热实验研究 |
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| 引用本文： | 周孑民,曾文辉,叶良春. 受限空气射流冲击矩形柱鳍热沉换热实验研究[J]. 热科学与技术, 2007, 6(1): 70-75 |
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| 作者姓名： | 周孑民 曾文辉 叶良春 |
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| 作者单位： | 中南大学,能源科学与工程学院,湖南,长沙,410083;中南大学,能源科学与工程学院,湖南,长沙,410083;东莞新能源电子科技有限公司,研发部,广东,东莞,523080 |
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| 摘 要： | 采用实验方法研究了受限空气冲击射流与矩形柱鳍热沉相结合的散热方式应用于芯片冷却的换热规律,采用最小二乘法对实验数据进行了拟合,并最终获得平均努塞尔数关于雷诺数、喷口高度-孔径比及普朗特数的实验准则方程。在此基础上将这种散热方式与其他空冷方式进行了换热能力的比较,结果表明此种散热方式的换热能力大大超过其他空冷方式。最后,对实验系统误差进行了分析,根据误差传递理论求得的平均努塞尔数的实验相对误差不超过6%。
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| 关 键 词： | 受限空气射流 矩形柱鳍热沉 平均努塞尔数 模拟芯片 |
| 文章编号： | 24006093 |
| 修稿时间： | 2006-10-27 |
Experimental study on heat transfer of rectangular pin-fin heat sink under confined air jet impingement |
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| ZHOU Jie-min,ZENG Wen-hui,YE Liang-chun. Experimental study on heat transfer of rectangular pin-fin heat sink under confined air jet impingement[J]. Journal of Thermal Science and Technology, 2007, 6(1): 70-75 |
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| Authors: | ZHOU Jie-min ZENG Wen-hui YE Liang-chun |
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| Affiliation: | 1. School of Energy Sci. and Eng. , Central South Univ. , Changsha 410083, China; 2. Dept. of New Product Development, Dongguan Amperex Electro. Tech. Co. , Ltd, Dongguan 523080, China |
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| Abstract: | The heat transfer characteristics of confined air jet impingement in conjunction with rectangular pin-fin heat sink on chip cooling was experimentally investigated,the average Nusselt number correlation in terms of Reynolds number,the nozzle height-diameter ratio and the Prandtl number was obtained by least square method.A comparison between this cooling method and some other air cooling methods was given;the results show that air jet impingement combined with heat sink has much stronger heat removal ability than other ways.Experimental error was analyzed with the relative error not exceeding 6%. |
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| Keywords: | confined air jet impingement rectangular pin-fin heat sink average Nusselt number simulated chip |
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