收腰管散热器的耦合传热与试验  

Coupled Heat Transfer and Experiments of Waist Tube Radiator

作　　者：赵津[1] 马秀勤[1] 李梅珺 张秉坤[1] 郭松 

机构地区：[1]贵州大学,贵阳550025 [2]贵州贵航汽车零部件股份有限公司永红散热器公司,贵阳550009

出　　处：《中国机械工程》2016年第16期2166-2171,共6页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(611164007);贵州省重大科技专项((2014)6004);贵州大学研究生创新基金资助项目(研理工2015018);贵州省普通高等学校新能源汽车工程研究中心项目(黔教合KY字[2014]226号)

摘　　要：提出了一种收腰型散热管,在研究其对散热性能的影响的基础上,建立了收腰管型百叶窗散热器的三维模型,应用耦合传热原理对其传热过程进行模拟研究。得到不同风速下散热器的进出口压降、翅片传热系数和传热量,总结了收腰管对百叶窗散热器空气流道的流体结构及其分布规律的影响。通过风洞试验对比分析了多种管型散热器的性能差异,发现收腰管散热器具有更优的散热性能,能够满足多种车型发动机冷却系统的散热需求。A 3-D model of waist tube radiator was established on the basis of effects of waist tube on the cooling performance,and the coupled heat transfer principle was employed to simulate the heat transfer process.The pressure drops,heat transfer coefficients and heat transfer flux were obtained at different air speeds.And the effects of the waist tube on the structure and distribution of the air flow were summarized herein.Then the performance differences among various radiators were comparatively analyzed though the wind tunnel tests.The results show that the tube radiator has better thermal performance and meets the cooling needs of various engine cooling systems.

关 键 词：收腰管 百叶窗散热器 耦合传热 数值模拟 

分 类 号：U27[机械工程—车辆工程] TK172[交通运输工程—载运工具运用工程]