摘要
本文建立了IGBT热管散热器模型,并用实验数据验证所建立的三维热管散热器模型及基于有限体积法的数值模拟结果的可靠性,然后研究翅片厚度t和翅片间距s对散热器散热性能的影响。结果表明:数值模型可靠;当t由0.5 mm增至1 mm时整体翅片热管散热器的摩擦系数f增加45%,而传热因子j最大增加30%;当s由1.2 mm增至2 mm时散热器的摩擦系数f减小15%,而j的变化较小且s=1.2 mm时j的平均值最大。
The model of IGBT heat pipe heat sink was established. The established three-dimensional model and the reliability of nu-merical simulation results based on the finite volume method were verified by experimental data. Then the effects of fin thickness （ t） and fin spacing （ s） was investigated on the radiator cooling performance. The results show that the numerical model is reliable. When t is in-creased from 0. 5 mm to 1 mm, the friction coefficient （ f） of integral fin tube radiator is increased by 45%, and j factor is greatly in-creased by 30%. When s is increased from 1. 2 mm to 2 mm, the friction coefficient （f） of radiator is decrease by 15%, but the change of j is small and its average reaches the maximum when s=1. 2 mm.
出处
《制冷学报》
CAS
CSCD
北大核心
2014年第5期101-104,109,共5页
Journal of Refrigeration
关键词
热管
散热器
整体翅片
数值模拟
heat pipe
heat sink
integral fin
numerical simulation
