Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model
Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model
复制标题
波状壁柱上流过的层流降膜研究：第二部分。
DOI：
10.1016/s0017-9310(00)00237-4
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发表时间：
2001
影响因子：
5.2
通讯作者：
M. Prévost
中科院分区：
文献类型：
--
作者：
Stéphane Négny;M. Meyer;M. Prévost
采用电荷耦合器件（CCD）摄像机组成的光学方法，对液膜流过波壁柱的界面位置进行了实验研究。结果与理论计算进行了比较，并显示出良好的协议之间的结果为膜厚度和涡的位置。然而，存在一些差异，因为界面是由波传播的，而不是在数学模型中考虑的，因为它应该是平坦的。波的一些特性的实验记录。此外，粘度上的膜厚度的影响，以及建立。
The interface position of a film 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.