基于ANSYS技术的CPU热管式散热器换热规律实验研究与数值模拟  

Experiment and Numerical Study of Heat-pipe Radiator in the CPU by using of ANSYS

作　　者：胡永海[1] 童正明[1] 叶立[1] 

机构地区：[1]上海理工大学动力工程学院,上海200093

出　　处：《工业加热》2009年第6期35-37,共3页Industrial Heating

摘　　要：CPU的工作温度是判断CPU性能的一项重要参数,为克服解析计算求取CPU温度精确值的困难,利用ANSYS有限元软件对热管式散热器与普通翅片散热器进行了热特性分析,模拟计算出稳态温度场分布,以及不同功率下CPU中心点的换热特性。研究结果表明,在稳定状态时,热管式散热器较普通翅片散热器具有极强的热传导性能;在CPU高功率工作时,普通翅片散热器CPU温度超过85℃无法满足换热要求,而热管式散热器CPU温度低于75℃,完全达到换热效果;模拟计算值与实验值最大相差4.1℃,应用数值模拟的方法研究CPU热管式散热器换热特性是可行。The temperature of CPU is an important parameter for the capability ofCPU, but it＇s hard to get accurate value by using analytical calculation method. Thermal analysis of heat-pipe radiator and ribbed radiator was performed using ANSYS finite element software and the temperature distribution as well as the heat transfer at the different power. The results indicate that heat-pipe radiator has greater heat transfer characteristic in a stable state. In high power, the temperature of CPU by using ribbed radiator is more than 85℃, while the temperature is less than 75℃ by using heat-pipe radiator. The experiment basically tallies with the value of numerical calculation.

关 键 词：热管 CPU 热分析 实验研究 ANSYS 

分 类 号：TP309.1[自动化与计算机技术—计算机系统结构]