基于Fluent的水冷散热器特性研究  

Research on characteristics of water cooling radiator based on Fluent

作　　者：张记杨 张泽 ZHANG Jiyang;ZHANG Ze(School of Mechanical Engineering,Guizhou University,Guiyang 550025,Guizhou,China)

机构地区：[1]贵州大学机械工程学院,贵州省贵阳市550025

出　　处：《农业装备与车辆工程》2023年第9期107-110,共4页Agricultural Equipment & Vehicle Engineering

摘　　要：针对目前机械设备与电子产品的发热问题,提出了一种圆盘形CPU水冷散热结构,并通过Fluent软件对其进行数值模拟。在雷诺数为500-3000的工况下,模拟了该结构在2种工作模式下的对流换热情况(模式1为滞后分流端,模式2为提前分流端)。结果表明,该结构能够有效地散热,且2种模式的传热能力都随着雷诺数的增加而增大,Re从500变化到3000,模式1的对流换热系数提升了58.96%,模式2提升了58.57%;2种模式的热阻值都随着雷诺数的增加而不断降低。综合考虑各项性能,模式2均优于模式1,说明提前分流可以增加换热能力。Aiming at the heating problem of various mechanical equipment and electronic products,a disk-shaped CPU water cooling structure was proposed,and the structure was numerically simulated by Fluent software.Under the condition of Re 500~3000,the convective heat transfer of the structure under two different working modes was simulated(mode 1 is the lag port,and mode 2 is the advance port).The results showed that the structure could heat effectively,and the heat transfer capacity of the two modes increased with the increase of Re.When Re changed from 500 to 3000,the convective heat transfer coefficient of mode 1 and mode 2 increased by 58.96%and 58.57%respectively.Moreover,the thermal resistance values of the two modes decreased with the increase of Re.Considering all the performances,mode 2 was better than mode 1,and it could b e found that the advance flow could increase the heat transfer ability.

关 键 词：FLUENT 水冷 热阻值 对流换热系数 压降 

分 类 号：TK172[动力工程及工程热物理—热能工程] TP332[自动化与计算机技术—计算机系统结构]