Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model

被引：26
|
作者：
Negny, S [1 ]
Meyer, M [1 ]
Prevost, M [1 ]
机构：
[1] INP ENSIGC CNRS, UMR 5503, Grp Separat Gaz Liquide, F-31078 Toulouse 04, France
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2001年 / 44卷 / 11期
关键词：
Charge coupled devices - Flow patterns - Flow visualization - Heat transfer - Hydrodynamics - Interfaces (materials) - Mass transfer - Mathematical models;
D O I：
10.1016/S0017-9310(00)00237-4
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The interface position of a him flowing over a wavy wall column is experimentally studied by an optical method composed of a charge coupled device (CCD) video camera. The results are compared with theoretical calculations and show a good agreement between results for both the film thickness and the vortex position. However, there exist some discrepancies because the interface is travelled by waves not accounted for in the mathematical model as it is supposed to be flat. Some characteristics of the waves are experimentally noted. Furthermore, the influence of the viscosity on the film thickness is established as well. (C) 2001 Published by Elsevier Science Ltd.
引用
收藏
页码：2147 / 2154
页数：8
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