気流に伴われて流れる液膜界面の波動特性と界面せん断力 : 液膜厚さを任意に設定できる実験手法の提案とそれに基づく影響因子の分析

概要

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This study aims to analyze the basic factors affecting interfacial characteristics of liquid film flow driven by gas stream. An experimental method, in which liquid film thickness could be adjusted freely by varying the inclination angle of flow channel and interfacial shear force could be estimated from the angle, was developed. The effects of gas-liquid relative velocity, liquid film thickness, liquid flow rate, channel height, liquid viscosity and surface tension upon the interfacial shear force were examined. The effects of these basic factors upon wave amplitude, wave length and wave velocity of the interfacial wave were also examined. The results for the disturbed wave regime were expressed in terms of coefficient of the exponent. It was found that the motion of liquid film was dominated by drag forces exerted by gas stream on the disturbed waves.
社団法人日本機械学会の論文
1996-04-25