不同环境中翅片散热器性能的仿真研究

通过理论分析和仿真计算相结合的方法,以VD-MOS高热流器件的散热器为冷却对象,分别在大气环境和真空环境中建立了翅片散热器的数学物理模型,应用FLUENT公司的Icepak电子热设计分析软件对不同参数下的翅片散热器在两种环境中的性能进行了数值模拟,分别得到了翅片高度、翅片间距、翅片个数以及散热器的安装方位等多个参数对散热器散热性能的影响规律,并通过对比分析得到了真空和大气环境中的不同影响规律和最优结构参数.

Simulation Study on Thermal Performance of Fin heat sink in Different Environments

A mathematical and physical model of fin heat sink used for VD-MOS high heat flux component was built respectively in the atmosphere and vacuum. Numerical simulations on the thermal performances of heat sink with different configuration parameters were performed using thermal design software Icepak which was exploited in FLUENT company. The influence mechanism of the structure parameters such as fin height, fin spacing, fin number and installation position on thermal performance of heat sink were analyzed and the different mechanism and optimum configuration parameters in different environment were obtained by comparison.