Experimental studying of local characteristics of gas-liquid flow in microchannels by optical methods

German V. Bartkus, Vladimir V. Kuznetsov

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийстатья в сборнике материалов конференциинаучнаярецензирование

2 Цитирования (Scopus)

Аннотация

The local characteristics of the gas-liquid two-phase flow in rectangular microchannels 420 × 280 μm and 395 × 205 μm with T-shaped mixer inlet were experimentally investigated in this work. Visualization of flow regimes and measurement of local characteristics were carried out using a high-speed video camera Optronis CX600x2 and laser-induced fluorescence (LIF) method. Deionized water and ethanol were used as the liquid phase, and nitrogen - as the gas phase. The Rhodamine 6G dye was added to the liquid. The location of the microchannel in space (horizontal, vertical) was changed. The profiles of the liquid film along the long side of the microchannel were obtained, the local film thickness was measured in the channel's central section for the elongated bubble flow and the transition flow of the deionized water-nitrogen mixture. The unevenness of liquid film thickness at the channel cross-section and along the bubble was experimentally shown. The temporal dynamics of two-phase flow for the ethanol-nitrogen mixture was shown. It was found that most of the liquid flows in the meniscus on the short side of the microchannel for the present gas and liquid flow rates.

Язык оригиналаанглийский
Название основной публикацииXV All-Russian Seminar "Dynamics of Multiphase Media", DMM 2017
Редакторы Fomin
ИздательAmerican Institute of Physics Inc.
Число страниц6
Том1939
ISBN (электронное издание)9780735416246
DOI
СостояниеОпубликовано - 28 мар 2018
Событие15th All-Russian Seminar on Dynamics of Multiphase Media, DMM 2017 - Novosibirsk, Российская Федерация
Продолжительность: 3 окт 20175 окт 2017

Серия публикаций

НазваниеAIP Conference Proceedings
ИздательAMER INST PHYSICS
Том1939
ISSN (печатное издание)0094-243X

Конференция

Конференция15th All-Russian Seminar on Dynamics of Multiphase Media, DMM 2017
СтранаРоссийская Федерация
ГородNovosibirsk
Период03.10.201705.10.2017

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