微管道散热器换热性能的有限元分析  

Analysis of Heat Transfer Performance about Microchannel Heat Sinks Using FEM

作　　者：杨朝初[1] 毕勤成[1] 陈听宽[1] 董涛[2] 

机构地区：[1]西安交通大学动力工程多相流国家重点实验室 [2]南京理工大学机械工程学院

出　　处：《中国机械工程》2003年第21期1860-1863,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目 (5 0 1760 3 9)

摘　　要：利用伽辽金有限元公式计算了微管道散热器中的管道表面温度分布、流体温度分布及流动阻力系数和换热系数等。与现有的分析方法对比发现 ,利用有限元方法可对热负荷任意分布工况下的微管道散热器进行传热性能分析 ,而且使用范围比现行的大型 CFD软件更广 ,也可用于分析微管道散热器的几何参数对散热器传热性能的影响。Galerkin finite element formulation has been applied to predict the surface temperature, fluid temperature and the total resistance of the microchannel heat sinks for electronic chips cooling. Compared with other corresponding methods, the finite element method designed in the paper can be used in analyzing the heat transfer characteristics in microchannel heat sinks with discretional bottom heat flux distribution.This method has wider applications than that of massive CFD(computational fluid dynamics) calculations. The FEM procedure is also a useful tool for analyzing the effect of geometrical parameters on the performance of the microchannel heat sinks.

关 键 词：微管道 传热 有限元 热换器 

分 类 号：TH297[机械工程—机械制造及自动化]