On drag reduction in a two-phase flowстатья
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 ноября 2024 г.
Авторы:
Gatapova E.Ya ,
Ajaev V.S. ,
Kabov O.A.
Журнал:
JETP Letters
Том:
101
Номер:
3
Год издания:
2015
Издательство:
Pleiades Publishing, Ltd
Местоположение издательства:
Road Town, United Kingdom
Первая страница:
160
Последняя страница:
163
DOI:
10.1134/S0021364015030042
Аннотация:
Bubbles collected on a local hydrophobic surface with nanocoating in a two-phase flow in a minichannel have been detected experimentally. It has been proposed to use the effect of concentration of gas bubbles on hydrophobic segments of the surface of the channel with contrast wettability for ensuring drag reduction. A two-dimensional flow model with the Navier slip condition in the region of the bubble layer gives criteria of drag reduction, depending on the slip length, dimension of bubbles, and dimension of the segment with nanocoating. The presence of the bubble layer on half of the surface of the channel can increase the flow rate of a liquid flowing through the channel by 40% at a fixed pressure gradient. © 2015, Pleiades Publishing, Inc.
Добавил в систему:
Гатапова Елизавета Яковлевна