Instabilities of two-phase flows in short rectangular microchannels

被引：0
|
作者：
E. A. Chinnov
O. A. Kabov
机构：
[1] Russian Academy of Sciences,Kutateladze Institute of Thermophysics, Siberian Branch
[2] Université Libre de Bruxelles,Microgravity Research Center
来源：
Technical Physics Letters | 2011年 / 37卷
关键词：
Technical Physic Letter; Superficial Velocity; Schlieren Image; Horizontal Channel; Liquid Film Thickness;
D O I：
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中图分类号：
学科分类号：
摘要：
Two-phase (liquid-gas) flows in a short horizontal slit channel of rectangular cross section with heights (thicknesses) from 100 to 500 μm have been experimentally studied using the laser-induced fluorescence and schlieren photography methods. It is established that the formation of various two-phase flow regimes and the transitions between different regimes are determined by instabilities of the liquid-gas flow in the side parts of a channel. In a 100-μm-thick channel, a frontal instability has been observed during the liquid-gas interaction in the region of liquid output from the nozzle.
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页码：921 / 924
页数：3
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