GRAVITY-DRIVEN 2-LAYER FLOW DOWN A SLIGHTLY WAVY PERIODIC INCLINE AT LOW REYNOLDS-NUMBERS

被引：20
|
作者：
KANG, F
CHEN, KP
机构：
[1] Department of Mechanical and Aerospace Engineering, Arizona State University, Tempe
来源：
INTERNATIONAL JOURNAL OF MULTIPHASE FLOW | 1995年 / 21卷 / 03期
基金：
美国国家科学基金会;
关键词：
LOW REYNOLDS NUMBER FLOW; THIN FILMS; WAVY WALL;
D O I：
10.1016/0301-9322(94)00080-4
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
Gravity-driven two-layer flow down a slightly wavy periodic incline at low Reynolds numbers is studied by a perturbation approach. Amplitude ratios and phase shifts of the fluid-fluid interface and the fluid-air free surface relative to the wavy wall are obtained as functions of the incline angle, wavelength of the roughness, and the ratios of film mean thickness, density and viscosity. Effects of surface tension and interface are included, and wall-shear-stress distributions are also discussed.
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页码：501 / 513
页数：13
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