波状细通道热沉流动和传热特性研究  

Flow and heat transfer characteristics of wave mini-channel heat sink

作　　者：朱礼[1] 林清宇[1] 石卫军[1] 夏树昂 冯振飞[1] 刘鹏辉[1] 何荣伟[1] 

机构地区：[1]广西大学化学化工学院广西石化资源加工及过程强化技术重点实验室,广西南宁530004

出　　处：《化工科技》2016年第5期37-40,共4页Science & Technology in Chemical Industry

基　　金：广西石化资源加工及过程强化技术重点实验室主任基金项目(2015Z012);广西大学科研基金资助项目(XJZ130359)

摘　　要：为了探究细通道热沉的结构对其层流流动和传热特性的影响,使用CFD软件对3种细通道热沉进行了数值模拟研究。通过对比分析进出口压降、Nu数和性能强化评价因子η得到相关结论:锯齿形细通道热沉(SMS)和波状细通道热沉(WMS)的Nu数比常规直细通道热沉显著增加,而进出口压降增加不显著;WMS的性能强化评价因子η在进口流体Re数大于450时高于SMS。A numerical simulation was carried to investigate different mini-channel for the effect on laminar flow and heat transfer with CFD software.By analyzing contrastively the pressure drop between in and out,the mean Nunumber and performance enhancement criticism factorη,we could get some conclusions that the mean Nu number of both SMS and WMS was higher dramaticlly than the one of conventional mini-channel heat sink;the pressure drop between in and out of both SMS and WMS was a little bigger than that of conventional mini-channel heat sink;the performance enhancement criticism factorηof WMS was higher than SMS while Re number is more than 450.

关 键 词：细通道热沉 数值模拟 性能强化评价 

分 类 号：TK124[动力工程及工程热物理—工程热物理]