弧形涡发生器对车用散热器的影响研究  

Research on the influence of curved vortex generator on vehicle radiator

作　　者：马宗鹏 黄瑛 MA Zongpeng;HUANG Ying(Department of Mechanical Engineering,Guizhou University,Guiyang 550025,Guizhou,China)

机构地区：[1]贵州大学机械工程学院,贵州省贵阳市550025

出　　处：《农业装备与车辆工程》2023年第9期17-20,61,共5页Agricultural Equipment & Vehicle Engineering

基　　金：贵州省科技计划项目(黔科合基础[2020]1Y238)。

摘　　要：车用散热器的翅片结构对其散热性能影响很大。在现有收腰管和平翅片的基础上对平翅片的结构进行了优化,开发了3种新型翅片(弧形涡发生器1#、2#、3#)。基于Fluent软件进行CFD建模,研究了2~14 m/s空气速度下各翅片的传热和阻力性能。结果表明,设置弧形涡发生器通过改变空气的流场状态可以有效提升收腰管散热器的传热性能;当空气入口速度为14 m/s时,弧形涡发生器1#、弧形涡发生器2#和弧形涡发生器3#的努塞尔数分别提高了7.9%、10.8%和10.9%。综合评价3种新型翅片的性能,在各空气速度下,新型翅片均优于平翅片。The fin structure of vehicle radiator has great influence on its heat dissipation performance.Based on the existing waspwaisted tube and flat fin,the structure of flat fin was optimized,and three new types of fin(arc vortex generator 1#,arc vortex generator 2#and arc vortex generator 3#)were developed.CFD modeling was carried out based on Fluent software,and the heat transfer performance and drag performance of each fin were studied under the air velocity of 2 m/s to 14 m/s.The research showed that setting the arc vortex generator could effectively improve the heat transfer performance of the wasp-waisted tube radiator by changing the state of air flow field.When the air inlet velocity was 14 m/s,the Nusselt number of arc vortex generator 1#,arc vortex generator 2#and arc vortex generator 3#were increased by 7.9%,10.8%and 10.9%,respectively.Through the comprehensive evaluation of the three new fins,the new fins were superior to the flat fins at all air speeds.

关 键 词：翅片结构 新型翅片 弧形涡发生器 收腰管 综合传热性能 

分 类 号：TH16[机械工程—机械制造及自动化] TK172[动力工程及工程热物理—热能工程]