多孔泡沫金属微通道热沉优化设计研究  

Optimization Design of Microchannel Heat Sink with Porous Metal Foam

作　　者：马欣荣 李少婷 MAXinrong;LI Shaoting(School of Mathematics and Statistics,Xianyang Normal University,Xianyang 712000,Shaanxi,China)

机构地区：[1]咸阳师范学院数学与统计学院,陕西咸阳712000

出　　处：《咸阳师范学院学报》2021年第6期1-5,共5页Journal of Xianyang Normal University

基　　金：陕西省教育科学“十三五”规划课题(SGH18H356);咸阳师范学院“青蓝人才”项目(XSYQL201901);咸阳师范学院科研基金项目(XSYK19034);陕西省大学生创新创业训练计划项目(S202010722062)。

摘　　要：由于泡沫金属具有低密度、大表面积和高导热性等显著优点,非常适合用来增强微通道热沉的传热性能。基于有限元方法,研究泡沫金属微通道热沉传热性能及其优化策略。采用参数化结构优化技术,分析参数对整体换热性能的影响,提出微通道热沉最优的几何结构。数值计算10 mm×10 mm×4 mm泡沫金属微通道热沉的温度场和流场分布,综合分析不同厚度的泡沫金属几何结构对温度、压力降以及换热性能的影响。相对于传统的光滑微通道,优化后的泡沫金属微通道综合传热性能提高了11.92%。Metal foams are very suitable for enhancing the heat transfer performance of microchannels heat sink(MCHS) due to their significant advantages such as low density, large surface area and high thermal conductivity. Based on the Galerkin finite element method, a study was made of the performance of MCHS and its optimization strategy. The influence of parameters on the overall heat transfer performance was analyzed by using parameterized structure optimization technology, with the optimal geometric structure of MCHS proposed, with the temperature and flow field distributions of metal foam MCHS with size 10 mm×10 mm×4 mm numerically calculated, and the effects of geometric structure of metal foam with different thickness on temperature, pressure drop and heat transfer performance comprehensively analyzed. In comparison with the conventional smooth microchannel, the comprehensive performance of the optimized metal foam microchannel is improved by 11.92%.

关 键 词：泡沫金属 微通道热沉 结构优化 有限元方法 传热性能 

分 类 号：TK01[动力工程及工程热物理]