On drag reduction in a two-phase flow

E. Ya Gatapova, Vladimir Sergeevich Ajaev, O. A. Kabov

Результат исследований: Материалы для журналаСтатья

10 Цитирования (Scopus)

Выдержка

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.

Язык оригиналаАнглийский
Страницы (с-по)160-163
Число страниц4
ЖурналJETP Letters
Том101
Номер выпуска3
DOI
СостояниеОпубликовано - 1 фев 2015

Отпечаток

drag reduction
two phase flow
bubbles
slip
two dimensional flow
wettability
pressure gradients
flow velocity
liquids
gases

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Цитировать

On drag reduction in a two-phase flow. / Gatapova, E. Ya; Ajaev, Vladimir Sergeevich; Kabov, O. A.

В: JETP Letters, Том 101, № 3, 01.02.2015, стр. 160-163.

Результат исследований: Материалы для журналаСтатья

Gatapova, EY, Ajaev, VS & Kabov, OA 2015, 'On drag reduction in a two-phase flow', JETP Letters, том. 101, № 3, стр. 160-163. https://doi.org/10.1134/S0021364015030042
Gatapova, E. Ya ; Ajaev, Vladimir Sergeevich ; Kabov, O. A. / On drag reduction in a two-phase flow. В: JETP Letters. 2015 ; Том 101, № 3. стр. 160-163.
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