汽车散热器百叶窗翅片的多结构仿真与实验研究  

Simulation and Test Research for the Multi-structure of Automotive Louvered Fins Heat Exchangers

作　　者：吴勇[1] 郭健忠[1] 胡溧[1] 罗仁宏[1] 

机构地区：[1]武汉科技大学汽车与交通工程学院,武汉430081

出　　处：《科学技术与工程》2016年第11期59-64,共6页Science Technology and Engineering

基　　金：国家自然科学基金项目(51105283)资助

摘　　要：为了提升某汽车散热器百叶窗式翅片的综合性能,针对其几何结构进行优化,在原翅片数据的基础上分别建立了常规翅片、带三角翼结构的翅片和带三角翼的多区域结构翅片等三种类型百叶窗翅片模型。采用实验和仿真相结合的研究方法,将数值模拟结果与汽车散热器风筒实验结果进行对比,发现两者结果吻合较好,验证了数值模拟的可行性。通过对翅片的流动和传热分析以及利用j/f^(1/3)无量纲因子对翅片综合性能的评定,发现三角翼结构和多区域结构均有利于提升翅片的综合性能,并且得出带三角翼的多区域结构翅片综合性能最优。In order to improve the performance of a kind of automotive louvered fin radiator,and aim at optimizing the structure of it,three types louvered fin moduler that are normal louvered fin、louvered fin with triangular wing and multi-region louvered fin with triangular wing is established based on the date of the primary louvered fin. The research method which combines tests and simulations is adopted. Compared with the result of the wind tunnel experiment for automotive radiator,numerical simulation result has good agreement with it,so numerical simulation is verified correctly. The analysis on the velocity field and temperature field of louvered fin and the comprehensive assessment on the louvered fin by dimensionless factor j / f1 /3indicates that both of triangular wing and multi-region structures promote the comprehensive performance and the performance of multi-structure louvered fin with triangular wing is the best.

关 键 词：三角翼 多区域 汽车散热器风筒实验 无量纲因子 

分 类 号：TK172[动力工程及工程热物理—热能工程] TB657.5[一般工业技术—制冷工程]