摘要
本文研究水平圆柱垂直向上流动的层流膜沸腾传热问题。对于远离临界状态的流体,汽液两相间存在较大的密度差,相应的边界层排移厚度较大,必将对膜外液流产生影响,这个影响反过来作用于汽膜边界层,影响其流动和传热过程。本文用摄动方法对这种影响作了定性的分析,表明边界层排移的结果使传热过程加强了,并使得总传热系数与实验结果更趋于一致。
The effects of boundary layer excluding thickness on flows and heat transfer in laminal forced convection film boiling on a level cylinder have been investigated hear by use of perturbation methode, from which the following conclusions can be obtained: for flows far from critical state, the excluding thickness become larger on account of a larger densities difference between liquid and vapor, which enhances the heat transfer in the end. The analysis of this paper are more consistent with the previous experiments.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1989年第1期43-48,共6页
Journal of Engineering Thermophysics
