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浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (4): 734-740    DOI: 10.3785/j.issn.1008-973X.2011.04.024
机械工程、能源工程     
微通道热沉几何结构的多参数反问题优化
林林, 吴睿, 张欣欣
北京科技大学 热能工程系,北京 100083
Optimization for geometric parameters of micro-channel heat sink
using inverse problem method
LIN Lin, WU Rui, ZHANG Xin-xin
Department of Thermal Engineering, University of Science and Technology Beijing, Beijing 100083, China
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摘要：

提出微通道热沉几何结构的多参数反问题优化方法,其正向求解器是微通道热沉三维数值模型,反向求解器为简化的共轭梯度法,分析泵功的变化对热沉几何结构的影响.结果表明,在热沉换热面积和热表面热流密度恒定的条件下,随着泵功的增加,相应的最优热沉几何结构参数随之变化,即最优热沉的流道数和流道高宽比增加,流道比降低；泵功的增加使最优热沉的全局热阻降低,但在高泵功下全局热阻的降低幅度远低于在低泵功下的降低幅度.
Abstract:

A multi-parameters optimization approach was developed to search for the optimal geometric design for microchannel heat sink by integrating the simplified conjugate-gradient scheme into a fully three-dimensional heat transfer flow model. The effect of the pumping power on the micro-channel heat sink geometry was analyzed. With the constant heat flux passing through a given bottom surface of heat sink, the higher pumping power may induce the variation of the optimal geometric structure parameters such as the reduction of the width ratio of the channel-to-pitch along with the increase of the channel number of the heat sink and the aspect ratio. The global thermal resistance of the optimal heat sink can be decreased by increasing the pumping power, but the corresponding reduced amplitude is much smaller than that caused by lower pumping power.
出版日期: 2011-05-05
:  TK 91  
基金资助:

 国家自然科学基金资助项目(50836001).
作者简介: 林林(1968—),男,吉林市人,副教授,从事节能技术、相变传热与微尺度换热研究. Email:linlin@ustb.edu.cn
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引用本文:

林林, 吴睿, 张欣欣. 微通道热沉几何结构的多参数反问题优化[J]. J4, 2011, 45(4): 734-740.

LIN Lin, WU Rui, ZHANG Xin-xin. Optimization for geometric parameters of micro-channel heat sink
using inverse problem method. J4, 2011, 45(4): 734-740.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.04.024    或    http://www.zjujournals.com/eng/CN/Y2011/V45/I4/734

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