带三角形槽和弧形肋微通道散热器的数值模拟研究  

Numerical Simulation Study of A Microchannel Heat Sink With Triangular Cavities and Arc-Shaped Ribs

作　　者：王从乐 朱进容[1,2] 李慧 代冬晴 吕清花[1,2] WANG Congle;ZHU Jinrong;LI Hui;DAI Dongqing;LV Qinghua(School of Science,Hubei Univ.of Tech.,Wuhan 430068,China;Hubei Engineering Technology Research Center of Energy Photoelectric Device and System,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学理学院,湖北武汉430068 [2]湖北工业大学湖北省能源光电器件与系统工程技术研究中心,湖北武汉430068

出　　处：《湖北工业大学学报》2024年第2期49-52,共4页Journal of Hubei University of Technology

基　　金：湖北省科技厅国际科技合作重点研发计划项目(2021EHB018);湖北省高等学校优秀中青年科技创新团队计划项目(T201907)。

摘　　要：采用数值模拟方法研究了具有周期性排列的三角形槽和弧形肋的新型微通道散热器(MC-ATC)在雷诺数为147-736范围内的流动传热特性。通过与矩形微通道散热器(MC-RC)对比,分析了三角形槽和弧形肋对速度分布和温度分布的影响,并定义了综合性能因子来评价微通道散热器的性能。研究结果表明,三角形槽和弧形肋对改善流体流动和强化传热有重要影响。相比于MC-RC,MC-ATC整体温度显著降低,温度分布更加均匀;通道侧壁附近低流速区明显减小,整体流速显著提高。当雷诺数在736时,MC-ATC的综合性能因子达到1.75。The performance of a new microchannel heat sink(MC-ATC)with triangular cavities and arc-shaped ribs arranged periodically in the Reynolds number range of 147-736 is numerically studied.The effects of the triangular cavities and arc-shaped ribs on velocity and temperature distributions are analyzed by comparing with the rectangular microchannel heat sink(MC-RC),and a comprehensive performance factor is defined to evaluate the performance of the microchannel heat sink.The results show that triangular cavities and arc-shaped ribs have significant effects on enhancing fluid flow and strengthening heat transfer.The overall temperature of MC-ATC is significantly lower and the temperature distribution is more uniform.The low flow velocity area near the channel side wall is also significantly reduced,and the overall flow velocity is significantly increased.When the Reynolds number is 736,the comprehensive performance factor of MC-ATC reaches 1.75.

关 键 词：微通道散热器 三角形槽 弧形肋 数值模拟 

分 类 号：TK124[动力工程及工程热物理—工程热物理]