STUDIES ON FLOWAND HEAT TRANSFER OF LIQUID FALLING FILM ON HELIX FLUTED HORIZONTAL TUBE

摘要：

Theoretical and experimental studies of the formation and heat transfer of falling liquid film in helix fluted channel on a horizontal tube are presented. In this paper, analytical and numerical solutions of velocity distribution and the film thickness are obtained. The heat transfer properties of the falling film formed on the surface of horizontal spirally fluted tube are invested theoretically and experimentally. The results show that the liquid film profile mainly depends upon surface geometry of the channel and the surface tension of liquid. The wall temperature increases at the beginning of the channel and then keeps constant when there maintains constant heating flux, however, the fluid temperature always trends to increase. Consequently, falling liquid film on helix fluted tube has significant higher heat transfer properties.

关键词： falling liquid film helix fluted tube heat transfer

作者: Mei Ning Li Yan Si Hongyu Bai Yu Zhang Shuchao

作者单位: College of Engineering，Ocean University of China， Qingdao，266100，China College of Engineering，Ocean University of China，Qingdao，266100，China

会议类型: 国际会议

会议名称: The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)

会议地点: 北京

会议语种:英文

页码: 780-789

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）