圆管管翅散热器肋侧主流方向绝对涡通量研究

工程热物理学报 , 2011, 32(10): 1734-1736.

圆管管翅散热器肋侧主流方向绝对涡通量研究

张葳 ^1, , 苏梅 ^2, , 宋克伟 ^3, , 林志敏 ^4, , 王良璧 ^5,

1.兰州交通大学机电工程学院,甘肃兰州730070／铁道车辆热工教育部重点实验室兰州交通大学,甘肃兰州730070

2.兰州交通大学机电工程学院,甘肃兰州730070／铁道车辆热工教育部重点实验室兰州交通大学,甘肃兰州730070

3.兰州交通大学机电工程学院,甘肃兰州730070／铁道车辆热工教育部重点实验室兰州交通大学,甘肃兰州730070

4.兰州交通大学机电工程学院,甘肃兰州730070／铁道车辆热工教育部重点实验室兰州交通大学,甘肃兰州730070

5.兰州交通大学机电工程学院,甘肃兰州730070／铁道车辆热工教育部重点实验室兰州交通大学,甘肃兰州730070

基金项目: 国家自然科学基金资助项目(51006048)

关键词：圆管管翅式散热器 , 主流方向绝对涡通量 , 数值模拟 , 传热特性

Study of Absolute Vortex Flux Along the Main Flow Direction in a Channel Formed by Tube Bank Plain Fins

Keywords： tube bank plate fin heat exchanger , absolute vortex flux along the main flow direction , numerical simulation , heat transfer characteristics

本文以圆管管翅式散热器为研究对象,采用数值模拟的方法对圆管管翅式散热器肋侧空气通道主流方向绝对涡通量的特性进行了探讨。给出了肋侧空气通道主流方向绝对涡通量无量纲化参数,二次流雷诺数;横向管间距、肋侧空气流动雷诺数对二次流雷诺数及努塞尔数的影响。

The characteristics of absolute vortex flux along the main flow direction in a channel formed by tube bank plain fins were studied using numerical simulation method in this paper.A dimensionless parameter of absolute vortex flux along the main flow direction,Reynolds number of secondary flow was provided;the effects under different transverse spacing and Reynolds number of air in the channel formed by tube bank plain fins on the Reynolds number of secondary flow and Nusselt number were presented.

参考文献

[1]	Lin, ZM;Sun, DL;Wang, LB .The relationship between absolute vorticity flux along the main flow and convection heat transfer in a tube inserting a twisted tape[J].Heat and mass transfer,2009(11):1351-1363.
[2]	阳祥,王良璧.纵向涡强度衰减及其干涉的数值分析[J].工程热物理学报,2006(05):844-846.

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