烟台大学学报（自然科学与工程版）2012，Vol.25Issue(1)：44-48,5.
翅片间距对热沉散热功率的影响研究
Three-Dimensional Numerical Simulation of Influence of Fin Spacing on Power of Heat Sink and Heat Dissipation
摘要
Abstract
We study the heat dissipation of the heat sink placing on the level of the natural convection cooling conditions by numerical simalation. It is found that on the conditions of the same width of the heat sink, the power ofconvection heat dissipation of heat sink can't be increased by reducing spacing of fins (representing an increase of the number offins of heat sink ). A comparion to the numerical simulation results of heat sink and theoretical analysis shows that there is an air stagnation zone in the heat sink of straight fins that placing on the level. The feature that there is almost no movement within the zone affects the play of natural convection of heat sink. With the narrowing of fin spacing the area of this zone increases. There is a best numerical value of fin spacing, and there can be the maximum power of heat sink and heat dissipation under the best spacing. Over the best value, the power of heat sink and heat dissipation will be lowered because of reducing the area of fins; when under the best value, the power of heat sink and heat dissipation also will be lowered because of reducing the effective area of heat dissipation.关键词
热沉/散热功率/开孔Key words
heat sink/power of heat dissipation/opening分类
信息技术与安全科学引用本文复制引用
曹景富..翅片间距对热沉散热功率的影响研究[J].烟台大学学报（自然科学与工程版）,2012,25(1):44-48,5.基金项目
河南省重点科技攻关计划项目(092102310059). （092102310059）
