波纹开缝翅片管换热器传热与流动性的数值模拟.pdf

第 28 卷第 4 期广东海洋大学学报
2008 年 8月 Journal of Guangdong Ocean University Aug. 2008

波纹开缝翅片管换热器传热与流动性的数值模拟

李军 1,吴学红 1,徐青 1,凌长明 1,张正国 2
(,广东湛江 524025;,广东广州 510640)

摘要:提出一种波纹开缝翅片管换热器,对其传热与流动特性进行三维数值模拟,选择 Re 范围在 1 000 到 5 000
时与平板开缝翅片的模拟相比较。结果表明,在 Re 小于 2 752 时,平板开缝比波纹开缝的换热效果好,而 Re 大
于 2 752 时,波纹开缝比平板开缝换热效果更好,并且波纹开缝翅片管换热器的流动阻力小于平板开缝,因此,
Re 大于 2 752 时波纹开缝比平板开缝综合效果更好。
关键词:翅片管换热器;开缝翅片;波纹翅片; 传热特性;流动特性;数值模拟
中图分类号: 文献标志码:A 文章编号:1673-9159(2008)04-0082-04

Numerical Simulation of Heat Transfer and Flow Performance of Slit
Surfaces of Wave Plate for Fin and Tube Heat Exchangers

LI Jun1, WU Xue-hong1, XU Qing1, LING Chang-ming1, ZHANG Zheng-guo2
( College, Guangdong Ocean University, Zhanjiang 524025,China;
2. The Key Lab of Enhanced Heat Transfer and Energy Conservation of Ministry of
Education, South China University of Technology, Guangzhou 510640, China )

Abstract: The article presents three-dimensional numerical simulation of air-side heat transfer and flow
performance of a kind of new slit wave-plate fin heat exchanger and draws parison between the
heat transfer and flow performance of slit plate fin heat exchanger. It is revealed that the heat transfer
coefficient of the slit plate fin heat exchanger is more than that of the slit wave-plate for Re<2 752.