基于有限空间大功率CPU散热行为数值模拟  

Numerical Simulation of Heat Dissipation Behavior of High Power CPU in Limited Space

作　　者：代远强 李壮 武军霞 马丹竹 建伟伟 DAI Yuanqiang;LI Zhuang;WU Junxia;MA Danzhu;JIAN Weiwei(School of Petroleum and Natural Gas Engineering,Liaoning Petrochemical University,Fushun 113001,China)

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001

出　　处：《机械工程师》2024年第10期58-61,共4页Mechanical Engineer

摘　　要：采用数值模拟方法对工业级以太网交换机有限空间内大功率(400 W)CPU散热行为进行研究。设计和讨论了4种热管布置方案对大功率CPU散热行为的影响规律,获得较好的散热参数。研究结果表明:在不改变散热器基本参数的条件下,沿着热管的导热方向增加热管长度能够有效提高散热器导热性能。增大热管的有效面积可以提高散热器整体散热性能,从而降低CPU温度。通过对热管布置方式和参数进行优化,增加热管长度至240 mm,同时采用6根热管方案,冷却效果最佳。This paper investigates the heat dissipation behavior of high power(400 W)CPU in an industrial Ethernet switch using numerical simulation.The influence of four heat pipe sinks on heat dissipation behavior of high-power CPU are discussed and designed.The results show that increasing the length of heat pipe along the heat conduction direction can effectively improve the heat conduction performance of heat sink without changing the basic parameters of heat sink.Increasing the effective area of heat pipe can improve the overall heat dissipation performance of heat sink and thus reduce the temperature of CPU.By optimizing the heat pipe layout and parameters,the length of heat pipe is increased to 240 mm.At the same time,six heat pipes are used to obtain the best cooling effect.

关 键 词：有限空间 CPU散热 数值模拟 

分 类 号：TG241[金属学及工艺—铸造]