南京工业大学学报（自然科学版）2012，Vol.34Issue(4)：27-32,6.DOI:10.3969/j.issn.1671-7627.2012.04.006
新型三角孔翅片的对流传热及压降特性
Convective heat transfer and pressure drop of new triangular perforated fin
摘要
Abstract
To make full use of boundary-layer effect to improve heat transfer efficiency,a new triangular perforated fin was presented. 3D numerical simulation on thermal performance of different convective heat transfer fins was carried out by using computational fluid dynamics ( CFD) software. Compared with the related experimental data,the validation of CFD model was verified . The effects of hole opening rates and hole stagger spaces on heat transfer and pressure drop characteristics were analyzed. Results showed that the fin with larger opening rate had better heat transfer characteristic than that with the smaller one,and the fin with hole stagger space of 1/2 unit width had better heat transfer performance. The triangular perforated fins had superior heat transfer performance compared with serrated fin on heat transfer quality factor j/f1/3.关键词
三角孔翅片/强化传热/开孔率/孔错开间距Key words
triangular perforated fin/ heat transfer enhancement/ opening rate/ hole stagger space分类
能源科技引用本文复制引用
李娟,凌祥,彭浩..新型三角孔翅片的对流传热及压降特性[J].南京工业大学学报（自然科学版）,2012,34(4):27-32,6.基金项目
教育部新世纪优秀人才支持计划资助项目(NCET-07-0434) （NCET-07-0434）
江苏省科技成果转化专项资金资助项目(BA2009021) （BA2009021）
教育部高等学校博士学科点专项科研基金资助项目(20103221110005) （20103221110005）
江苏省科技支撑计划资助项目(BE2008005) （BE2008005）
