整体式穿孔翅片流场特性的数值研究  

Numerical Simulation of the Flow Field Characteristics of Perforated Fin-in-tube Heat Exchanger

作　　者：詹伟民[1] 简弃非[1] 

机构地区：[1]华南理工大学机械与汽车学院,广州510640

出　　处：《制冷与空调（四川）》2014年第1期81-86,共6页Refrigeration and Air Conditioning

摘　　要：采用数值计算方法研究穿孔翅片表面空气侧流体的流动特性,获得不同雷诺数下穿孔翅片的速度分布云图、压力分布云图和流线分布图,并与平翅片进行对比分析。研究结果表明:在翅片上合适位置进行穿孔有利于强化传热,与平翅片相比,穿孔翅片的传热系数最大提高6.92%,最小提高2.46%。The airside flow performance of perforated and fin-in-tube heat exchangers is numerical investigated in this study. The pressure field, velocity field and streamlines are obtained. The research findings show that perforating fins can to strengthen heat transfer. Compare with plate fins, perforating fins enhance the heat transfer coefficient about 2.46%~6.92%.

关 键 词：数值模拟 穿孔翅片 速度分布 流场特性 

分 类 号：TK172[动力工程及工程热物理—热能工程]