An analysis of turbulent film condensation on an inclined tube with variable wall temperature

被引：3
|
作者：
Hu, Hai-Ping
Chen, Cha'o-Kuang
机构：
[1] Tainan Univ Technol, Dept Informat Management, Tainan 71002, Taiwan
[2] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 701, Taiwan
来源：
JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2007年 / 40卷 / 16期
关键词：
D O I：
10.1088/0022-3727/40/16/018
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The present study aims to investigate turbulent film condensation on an inclined tube with variable wall temperature. The analysis proceeds under the effects of liquid-vapour interfacial shear and eddy diffusivity. In order to forecast the results more exactly, a new theory model of local film shear stress (tau/tau w) is presented in the paper. The numerical calculation is obtained by using Visual C++. Net. The results show that the increase in the temperature amplitude will bring about a larger Nusselt number under high velocity vapour. Besides, the results present the optimal inclination angle of the tube in different wall temperature amplitudes.
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页码：4877 / 4881
页数：5
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