AN EXPERIMENTAL INVESTIGATION OF TWO-PHASE GAS-LIQUID FLOW PATTERNS IN EXTREMELY SMALL GAP MICROCHANNEL

被引：0
|
作者：
Dementyev, Yuriy A. [1 ,2 ]
Chinnov, Evgeniy A. [1 ,2 ]
V. Ronshin, Fedor [1 ,2 ]
Evstrapov, Anatoly A. [3 ]
Gusev, Victor S. [3 ]
Karpich, Sergey S. [3 ]
Kabov, Oleg A. [1 ]
机构：
[1] SB RAS, Kutateladze Inst Thermophys, 1 Lavrentyev Ave, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
[3] RAS, Inst Analyt Instrumentat, St Petersburg 190103, Russia
来源：
INTERFACIAL PHENOMENA AND HEAT TRANSFER | 2023年 / 11卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
liquid droplet; two-phase flow; flow patterns; schlieren; microchannel; PRESSURE-DROP; REGIMES; CHANNEL; SQUARE;
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The experimental study of adiabatic two-phase gas-liquid flow in an extremely small gap microchannel with a height of 10 mu m and width of 10 mm has been carried out. Color schlieren visualization allows the registering of typical flow patterns: Jet-Droplet, Jet-Churn, Churn, and Droplet-Annular. Flow patterns have been described and flow pattern maps have been created and compared with those of gap microchannels of higher sizes. The interference pattern of thin liquid films makes it possible to distinguish two mechanisms of their creation. New features and flow patterns are revealed that were not observed in larger gap microchannels. Liquid droplet sizes have been studied. It is shown statistically that with an increase of superficial liquid or gas velocity, the droplet size distribution is shifted towards smaller sizes.
引用
收藏
页码：123 / 133
页数：11
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