制冷技术Issue(1)：36-40,5.DOI:10.3969/j.issn.2095-4468.2015.01.109
新型CPU散热器内空气流动与换热特性的数值研究
Numerical Study on Flow and Heat Transfer Characteristics of Air in A New CPU Heat Sink
伊丽娜 1郑文龙 1王博杰 1王文1
作者信息
- 1. 上海交通大学制冷与低温工程研究所，上海 200240
- 折叠
摘要
Abstract
Aiming at the insufficient heat exchange performance of rectangular channel fin heat sink for electronic chips, a new heat sink with interrupted and folded fins was proposed. Numerical simulations on the flow and heat transfer of air in single flow channel for the two kinds of heat sink mentioned above were performed. The parameters of f,j, dimensionless factor (j/f) 1/3 andδwere comprehensively analyzed, and the results show that interrupted and folded fins can make fluid boundary layer thickness thinner and promote disturbances, thus the convection heat transfer was enhanced. According to field synergy theory and generalized temperature gradient uniformity principle, the inherent laws of heat transfer enhancement was deeply excavated. The new structure is proved to be superior to the rectangular structure. Moreover, the result provides a reference to the design of heat sink for cooling the electronic chips.关键词
CPU芯片/对流换热/数值模拟/场协同理论Key words
CPU chip/Convective heat transfer/Numerical simulation/Field synergy theory引用本文复制引用
伊丽娜,郑文龙,王博杰,王文..新型CPU散热器内空气流动与换热特性的数值研究[J].制冷技术,2015,(1):36-40,5.
