The effect of viscosity on rupture dynamics in the non-uniformly heated horizontal liquid film

D. Y. Kochkin, D. V. Zaitsev, O. A. Kabov

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференции

Аннотация

In the present work, we study the rupture dynamics of a horizontal liquid film non-uniformly heated from below in a wide range of liquid viscosity. To visualize the liquid surface deformations and disruption of the film, we use a Nikon digital camera (shot at 60 fps) coupled with an optical schlieren system. In order to measure the instantaneous film thickness, we use the confocal Micro-Epsilon chromatic sensor. It was found that the process of film rupture can be divided into three stages: 1) film thinning down to a residual film on the heater; 2) existence of a stable residual film for some time; 3) rupture and dryout of the residual film. The thickness of the residual film was found to strongly depend on the liquid viscosity: For water, it is about 10 μm, whereas for PMS-200 it is about 275 μm.

Язык оригиналаанглийский
Номер статьи012057
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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