摘要
本文用数值模拟的方法对翅片管换热器中广泛使用的平直开缝翅片的传热特性进行了数值模拟。结果表明在平翅片后部开缝与在翅片前部开缝相比,换热增强更多,并用场协同理论分析说明,在速度场和温度场协同比较差的区域开缝要比在场协同比较好的区域开缝对传热强化更有效。
In this paper, numerical investigation of air side performance of slit fin heat exchanger is presented. It is revealed that the strips located in the rear part of a typical slit fin configuration have better heat transfer performance than those in the front. The results are also analyzed with the field synergy principle. It turns out that it is more efficient to set the strips in the part where the velocity and the temperature field .are in poor synergy to enhance heat transfer.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2003年第5期825-827,共3页
Journal of Engineering Thermophysics
基金
国家973重点基础研究发展规划资助项目(No.G2000026303)
]自然科学基金(No.50076034)
关键词
开缝翅片
数值模拟
场协同
slit fin
numerical simulation
field synergy principle
