竖壁下降液膜发展段中的流动和换热分析

应用科学学报 ›› 1998, Vol. 16 ›› Issue (1): 74-80.

竖壁下降液膜发展段中的流动和换热分析

师晋生, 施明恒

东南大学

收稿日期:1996-06-26 修回日期:1997-04-26 出版日期:1998-03-31 发布日期:1998-03-31
作者简介:师晋生:博士生,东南大学动力工程系,南京 210018

AnalysisofLaminarFlowand Heat Transfer of Falling Liquid Film Along a Vertical Plate in the Developing Region

SHI JINSHENG, SHI MINGHENG

Department of Power Engineering, Southeast University, Nanjing 210018

Received:1996-06-26 Revised:1997-04-26 Online:1998-03-31 Published:1998-03-31

摘要/Abstract

摘要： 该文采用边界层相似解对竖壁下降液膜发展段中的层流流动与换热特性进行了分析,获得了定壁温时速度边界层和温度边界层发展段长度及换热系数的计算表达式.

关键词: 降膜, 速度边界层, 温度边界层, 发展段

Abstract: The characteristics of laminar flow and heat transfer of falling liquid film along a vertical plate in the developing region are analyzed by using the boundary layer similarity solution. The relationship between the developing length of hydrodynamic and thermal boudary layer and heat transfer coefficient for constant surface temperature are obtained.

Key words: falling liquid film, hydrodynamic boundary layer, developing region, thermal boundary layer

师晋生, 施明恒. 竖壁下降液膜发展段中的流动和换热分析[J]. 应用科学学报, 1998, 16(1): 74-80.

SHI JINSHENG, SHI MINGHENG. AnalysisofLaminarFlowand Heat Transfer of Falling Liquid Film Along a Vertical Plate in the Developing Region[J]. Journal of Applied Sciences, 1998, 16(1): 74-80.