摘要：近几年来，随着电子设备组装精度越来越高，散热问题越来越突出。微通道换热器作为一门新兴的热控技术成为国内外学者的研究热点。论文针对微通道换热器的设计和分析问题，在热控制技术基础上研究微通道换热器结构。利用FLUENT软件制作该微通道换热器的三文数字传热模型，进行三文流场、温度场的分析。深入研究微通道实体模型获取、微通道中流体模型获取、有限元网格划分、网格单元长度设置、网格单元质量参数设定等技术问题。FLUENT软件可用于微流体的分析计算。通过对微通道散热器模拟，将数值数据结果与现实观点进行结合，得出了一些有实际应用参考价值的结论。10400
关键词：微通道；散热器；数值模拟；FLUENT软件；比较分析
The simulation study of high performance of micro-channel heat sink
Abstract: In recent years, with the electronic equipment assembly accuracy higher and higher, the heat dissipation problem is becoming more and more prominent. As an emerging thermal control technology, micro-channel heat sink is the study hot spot of academics at home and abroad. The essay for micro-channel heat sink's design and analysis, on the basis of heat control technology, study the structure of micro-channel heat transfer. Based on FLUENT software for the three-dimensional numerical heat transfer model of micro-channel heat sink, proceed to make the three dimensional flow field, temperature field analysis and simulation. In-depth study of micro-channel entity model acquisition, the fluid flow in the micro-channel model acquisition, finite element mesh, length setting, the mass of grid cell parameter setting and other technical problems. FLUENT software can be used in micro-fluidic analysis and calculation. Through the micro-channel heat sink simulation, numerical simulation results were compared with real opinion analysis, some conclusion has reference value for practical application.
Keywords:    micro-channel；heat sink；numerical simulation；FLUENT software；compare analysis
目录
摘要    i
Abstract    i
目录    ii
1    绪论    1
1.1    微通道散热器的背景及其意义    1
1.2    国内外研究发展与现状    2
1.2.1    微通道散热器的发展    2
1.2.2    微通道散热器目前存在的问题    2
1.2.3    微通道散热器目前的利用    4
1.3    课题研究内容    6
2    微通道散热器的简单结构    7
2.1    基本概述    7
2.2    微通道的结构    8
2.3    微通道的原理    8
2.3.1    散热器的散热计算公式[12]    8
2.3.2    微通道流动传热系数    9
2.3.3    对流换热    10
2.3.4    边界层    10
3    微通道散热器的数学模型    12
3.1    控制方程    12
3.2    边界条件    13
3.3    数值求解    13
3.4    FLUENT介绍    14
3.5    FLUENT操作过程    16
3.6    数值模拟产生的残差图    21
4    结果分析及讨论    24
4.1    圆形微通道内径的影响    24
4.1.1    整体与进出口温度分布图    24 FLUENT高性能微通道散热器的模拟研究:http://www.751com.cn/zidonghua/lunwen_9575.html