翅片截面形状对风冷翅片散热器性能的影响

Effects of Fin Section Shape on the Performance of Air-cooled Fin Heat Sink

摘要:

基于牛顿粘性定律和计算流体力学(CFD),在实际项目的基础上探究了五种不同垂直截面形状的翅片式散热器在强迫对流条件下的散热性能,最终根据其各自的散热性能和经济性筛选出最佳垂直截面形状的散热器为三角形截面翅片散热器,与传统的矩形截面翅片散热器相比,其散热性能提升了4.23%,材料成本下降了17.95%。

Abstract:

Based on Newton law of viscosity and computational fluid dynamics (CFD), on the basis of the actual project, it explores the cooling performance of finned radiators with five different vertical sections under the condition of forced convection. According to their respective heat dissipation performance and economy, the optimum vertical cross section shape of the fin type radiator is selected to be the triangular section. Compared with the traditional rectangular fin radiator, its heat dissipation performance is improved by 4.23% and the material cost is reduced by 17.95%.