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%.
出处
《制冷与空调（四川）》
2014年第1期81-86,共6页
Refrigeration and Air Conditioning
关键词
数值模拟
穿孔翅片
速度分布
流场特性
Numerical simulation
Perforating fin
Velocity distribution
Flow field characteristics
