The Effect of Fluid Properties on Two-Phase Regimes of Flow in a Wide Rectangular Microchannel

F. V. Ronshin, V. V. Cheverda, E. A. Chinnov, O. A. Kabov

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

6 Цитирования (Scopus)

Аннотация

We have experimentally studied a two-phase flow in a microchannel with a height of 150 μm and a width of 20 mm. Different liquids have been used, namely, a purified Milli-Q water, an 50% aqueous-ethanol solution, and FC-72. Before and after the experiment, the height of the microchannel was controlled, as well as the wettability of its walls and surface tension of liquids. Using the schlieren method, the main characteristics of two-phase flow in wide ranges of gas- and liquid-flow rates have been revealed. The flow regime-formation mechanism has been found to depend on the properties of the liquid used. The flow regime has been registered when the droplets moving along the microchannel are vertical liquid bridges. It has been shown that, when using FC-72 liquid, a film of liquid is formed on the upper channel wall in the whole range of gas- and liquid-flow rates.

Язык оригиналаанглийский
Страницы (с-по)305-308
Число страниц4
ЖурналTechnical Physics Letters
Том44
Номер выпуска4
DOI
СостояниеОпубликовано - 1 апр 2018

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