INFLUENCE OF LOW-FREQUENCY EXTERNAL PULSATIONS OF LIQUID FLOW RATE ON GAS-LIQUID SLUG FLOW IN A RECTANGULAR MICROCHANNEL

被引：4

作者：

Bartkus, German, V ^{[1
]}

Kovalev, Alexander, V ^{[1
,2
]}

Yagodnitsyna, Anna A. ^{[1
,2
,3
]}

机构：

[1] Russian Acad Sci SB RAS, Kutateladze Inst Thermophys, Siberian Branch, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Kutateladze Inst Thermophys SB RAS, Novosibirsk 630090, Russia

来源：

INTERFACIAL PHENOMENA AND HEAT TRANSFER | 2023年 / 11卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

gas-liquid flow; rectangular microchannel; external flow pulsations; slug flow; 2-PHASE FLOW; MICROFLUIDICS; GENERATION; PATTERNS;

D O I：

10.1615/InterfacPhenomHeatTransfer.2022046727

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents the results of an experimental study of the influence of the liquid flow rate of external pulsations on the gas-liquid flow characteristics of periodic slug flow in a microchannel. The experimental data were obtained using high-speed visualization of the flow of an ethanol-nitrogen mixture in a T-junction microchannel with a 390 x 150 mu m rectangular cross section. A novelty of this work was the use of pulsations of the continuous liquid phase on the gas- liquid flow. The form of external pulsations was a sine wave with different frequencies (f =1 and 2 Hz) and amplitude values (A = 8%, 20%, and 40%). The results obtained showed that using high-amplitude and low-frequency external pulsations destroys periodic slug flow and changes the monodispersity of bubbles and liquid slugs. The statistical characteristics of the flow were obtained based on the frequency and amplitude of the pulsations.

引用

页码：1 / 9

页数：9

共 26 条

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