化工进展2017，Vol.36Issue(6)：2023-2030,8.DOI:10.16085/j.issn.1000-6613.2017.06.008
腰槽开孔矩形翼涡流发生器的传热和流阻特性
Experimental study of heat transfer and flow resistance characteristics of rectangular wing vortex generator with waist groove
摘要
Abstract
Vortex generator is a kind of element for passive heat transfer enhancement,usually on heat transfer surface of heat exchangers in the form of array layout. Vortex generators enhance heat transfer by inducing vortice to thin or destroy the wall boundary layer. The characteristics of heat transfer and flow resistance equipped with the rectangular wing vortex generators with waist groove,the rectangular wing vortex generator and the rectangular wing vortex generator with a hole in a rectangular channel was experimentally studied in this paper. Experimental Reynods number,Re,ranges from 1000 to 4000. The results showed that at the same Reynods number the rectangular wing vortex generators with waist groove have the best characteristics of heat transfer and flow resistance in a rectangular channel compared to the rectangular wing vortex generator and rectangular wing vortex generator with a hole. The attack angle and longitudinal distance of vortex generator have influence on heat transfer and flow resistance. It was found that the best performance of comprehensive heat transfer attack angle was 90° and the best performance of comprehensive heat longitudinal distance was 80mm.关键词
腰槽开孔矩形翼涡流发生器/强化换热/流阻/攻角/纵向间距Key words
rectangular wing vortex generator with waist groove/heat transfer enhacement/flow resistance/attack angle/longitudinal distance分类
能源科技引用本文复制引用
徐志明,熊骞,王景涛,韩志敏..腰槽开孔矩形翼涡流发生器的传热和流阻特性[J].化工进展,2017,36(6):2023-2030,8.基金项目
国家自然科学基金项目(51476025). （51476025）
