An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates

This article experimentally studies a thermocapillary rupture of a locally heated horizontal liquid film on substrates of different materials and different thickness. In the course of work the dependence of the critical heat flux on the initial and final film thickness was determined. Upon reaching...

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Main Author: Kochkin Dmitry
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:MATEC Web of Conferences
Online Access:http://dx.doi.org/10.1051/matecconf/20179201043
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author Kochkin Dmitry
author_facet Kochkin Dmitry
author_sort Kochkin Dmitry
collection DOAJ
description This article experimentally studies a thermocapillary rupture of a locally heated horizontal liquid film on substrates of different materials and different thickness. In the course of work the dependence of the critical heat flux on the initial and final film thickness was determined. Upon reaching the heat flux and film thickness at which the liquid film boils up, the film disrupts at almost constant finite thickness. The research has shown that with an increase in thermal conductivity and thickness of the substrate the critical heat flux increases. On the substrates of a material with high thermal conductivity (copper) the heat flux is redistributed on the substrate; at that the localization of heating is lost, and the rupture is not observed.
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spelling doaj.art-3d81cd152a394a61a0cafc34727d27f92022-12-21T19:37:26ZengEDP SciencesMATEC Web of Conferences2261-236X2017-01-01920104310.1051/matecconf/20179201043matecconf_tibet2017_01043An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substratesKochkin DmitryThis article experimentally studies a thermocapillary rupture of a locally heated horizontal liquid film on substrates of different materials and different thickness. In the course of work the dependence of the critical heat flux on the initial and final film thickness was determined. Upon reaching the heat flux and film thickness at which the liquid film boils up, the film disrupts at almost constant finite thickness. The research has shown that with an increase in thermal conductivity and thickness of the substrate the critical heat flux increases. On the substrates of a material with high thermal conductivity (copper) the heat flux is redistributed on the substrate; at that the localization of heating is lost, and the rupture is not observed.http://dx.doi.org/10.1051/matecconf/20179201043
spellingShingle Kochkin Dmitry
An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
MATEC Web of Conferences
title An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
title_full An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
title_fullStr An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
title_full_unstemmed An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
title_short An experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
title_sort experimental study of thermocapillary rupture of a locally heated horizontal liquid layer on various substrates
url http://dx.doi.org/10.1051/matecconf/20179201043
work_keys_str_mv AT kochkindmitry anexperimentalstudyofthermocapillaryruptureofalocallyheatedhorizontalliquidlayeronvarioussubstrates
AT kochkindmitry experimentalstudyofthermocapillaryruptureofalocallyheatedhorizontalliquidlayeronvarioussubstrates