Heat transfer enhancement by crossflow‐induced vibration
Heat transfer enhancement by crossflow‐induced vibration
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DOI：
10.1002/htj.20012
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发表时间：
2004-06
影响因子：
1.7
通讯作者：
Mao-cheng Tian;Lin Cheng;Yiqiang Lin;Guanmin Zhang
中科院分区：
文献类型：
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作者：
Mao-cheng Tian;Lin Cheng;Yiqiang Lin;Guanmin Zhang
提出了一种利用水横流诱导振动强化传热的新方法。设计了一种弹性管束传热元件。该系统具有良好的横流振动响应特性。采用三角形电极装置产生脉动流。该装置可以在固定的频率范围内引起振动，并对传热强化产生深远的影响。在定热流边界条件下，对水横流中弹性管束在流激振动强化下的传热特性进行了实验研究。与静态管束相比，弹性管束在横向振动条件下的管外平均对流换热系数提高了100-150%。得到了描述弹性管束外表面换热系数的无量纲方程组。© 2004 Wiley Periodicals，Inc. Heat Trans Asian Res，33（4）：211-218，2004;在线发表于Wiley InterScience（www.interscience.wiley.com）。DOI 10.1002/htj.20012
A new method of heat transfer enhancement by water crossflow-induced vibration is presented. A heat transfer element which involves elastic tube bundles has been designed. This system has excellent response characteristics of vibration to the crossflow. A triangular pole device for producing pulsating flow was adopted. This device can induce vibration in a fixed range of frequencies and has a profound influence on heat transfer augmentation. For the constant heat flux boundary condition, experiments are carried out on the heat transfer characteristics of elastic tube bundles augmented by flow-induced vibration in a water crossflow. Compared with static tube bundles, the out-tube average convective heat transfer coefficients of the elastic tube bundles are increased by 100–150% under the condition of crossflow-induced vibration. Dimensionless equations describing the outside heat transfer coefficient for the elastic tube bundles were acquired. © 2004 Wiley Periodicals, Inc. Heat Trans Asian Res, 33(4): 211–218, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/htj.20012