摘要
本文研究了三组内翅片管的湍流流动与换热特性，拟合出所测参数范围内阻力和换热的实验关联式，并运用相同质量流量、相同泵功率、相同压降三种准则比较了不同组翅片管之间的强化传热效果。
The characteristics of turbulent flow and heat transfer in tubes with three kinds of inside wave fins were investigated experimentally. The corresponding correlation for the friction factors and Nusselt numbers vs. the Reynolds numbers for the fin-tubes were obtained. The results of the above fin-tubes were compared with that of the smooth tubes. It was found that the fin-tubes with blocked inner tubes can significantly enhance the heat transfer among the three kinds of the fin-tubes due to the increase of fluid velocity in the tubes.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2000年第3期334-337,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金!No.59676019
关键词
波纹内翅片管
湍流换热
换热
阻力特性
实验
tubes with internal wave-like longitudinal fins, turbulent flow and heat transfer
