电子器件2012，Vol.35Issue(3)：271-275,5.DOI:10.3969/j.issn.1005-9490.2012.03.006
栅格式方孔翅片自然对流换热的数值模拟
Numerical Study of Natural Convection in Plate Heat Sinks with Grid Square Holes
摘要
Abstract
To improve the heat transfer in electronic devices, a new fin type heat exchanger with grid square holes was proposed, and its heat transfer characteristics in natural convection condition was analyzed* Using orthogonal experiment method and the Fluent modeling software, 102 different structure kinds of fin type heat exchanger with different ratios of fin heights to intervals between them, and different ratios of square-hole side length to fin thickness were simulated respectively. Results included;Gr-Nu relation graphs when H/S-2 and b/S-Q ~4 under large space natural convection conditions; Gr-Nu relation graphs when b/8-1.5 and H/S =1 -10/3 under limited space natural convection conditions* Research results suggest that the new proposed fin type heat exchanger with grid square holes has the potential to achieve a better heat transfer performance under natural convection conditions. This paper can provide new thoughts and theoretical guidance for the heat design of electron devices,such as LED lamps.关键词
电子器件冷却/格栅式方孔翅片/数值模拟/自然对流/强化传热Key words
electronics cooling/ square holes fin/ numerical simulation/ natural convection/ heat transfer enhancement分类
能源科技引用本文复制引用
黄秋月,孙志坚,纪翠娟,陈然..栅格式方孔翅片自然对流换热的数值模拟[J].电子器件,2012,35(3):271-275,5.基金项目
浙江省重大科技专项(优先主题)重大工业项目(2008C01054-2) （优先主题）
杭州市产学研合作项目(20101231E19) （20101231E19）
