Numerical simulation of flow with evaporation in triangular grooves

N. Sibiryakov, O. Kabov

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференции

Аннотация

We study the flow of an evaporating liquid film in triangular open microchannel. Above the surface of the liquid flows a gas. The sear-stress on the gas-liquid surface drags the liquid and removes the vapor. It models either flow in a channel or a flow in a single groove. The novelty of this work is that we simulate gas-driven flow with evaporation. We use Boundary element method to solve Laplace equation with mixed boundary conditions. This method gives the normal derivative of vapor concentration at the surface of the liquid. The resulting evaporation flux is growing sharply near the contact line. Integral evaporation coefficient slightly depends on the depth of the liquid. The upper gas flow drives the liquid film, resisting a velocity drop and preventing the dry spot formation.

Язык оригиналаанглийский
Номер статьи012060
ЖурналJournal of Physics: Conference Series
Том1369
Номер выпуска1
DOI
СостояниеОпубликовано - 26 ноя 2019
Опубликовано для внешнего пользованияДа
Событие5th International Workshop on Heat/Mass Transfer Advances for Energy Conservation and Pollution Control, IWHT 2019 - Novosibirsk, Российская Федерация
Продолжительность: 13 авг 201916 авг 2019

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