Breakdown dynamics of a horizontal evaporating liquid layer when heated locally

Breakdown dynamics of a horizontal evaporating liquid layer when heated locally

Breakdown of liquid layer when heated from a localized hot spot was investigated experimentally. Water and ethanol were used as working liquids with a layer thickness of 300 μm. Basic steps of the breakdown process were found and mean velocities of the dry spot formation were determined. The formati...

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Main Author: Spesivtsev Serafim
Format: Article
Language:English
Published: EDP Sciences 2017-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201715900049
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spelling doaj-376394ef787642938d3b3b9ba0a0648e2021-08-02T16:04:06ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011590004910.1051/epjconf/201715900049epjconf_avtfg2017_00049Breakdown dynamics of a horizontal evaporating liquid layer when heated locallySpesivtsev SerafimBreakdown of liquid layer when heated from a localized hot spot was investigated experimentally. Water and ethanol were used as working liquids with a layer thickness of 300 μm. Basic steps of the breakdown process were found and mean velocities of the dry spot formation were determined. The formation of residual layer over the hot-spot before the breakdown has been found for both liquids. The creation of a droplet cluster near the heating region is observed when using water as a working fluid. It was shown that evaporation is one of the general factors influencing the process of layer breakdown and dry spot formation as well as thermocapillary effect.https://doi.org/10.1051/epjconf/201715900049
collection DOAJ
language English
format Article
sources DOAJ
author Spesivtsev Serafim
spellingShingle Spesivtsev Serafim
Breakdown dynamics of a horizontal evaporating liquid layer when heated locally
EPJ Web of Conferences
author_facet Spesivtsev Serafim
author_sort Spesivtsev Serafim
title Breakdown dynamics of a horizontal evaporating liquid layer when heated locally
title_short Breakdown dynamics of a horizontal evaporating liquid layer when heated locally
title_full Breakdown dynamics of a horizontal evaporating liquid layer when heated locally
title_fullStr Breakdown dynamics of a horizontal evaporating liquid layer when heated locally
title_full_unstemmed Breakdown dynamics of a horizontal evaporating liquid layer when heated locally
title_sort breakdown dynamics of a horizontal evaporating liquid layer when heated locally
publisher EDP Sciences
series EPJ Web of Conferences
issn 2100-014X
publishDate 2017-01-01
description Breakdown of liquid layer when heated from a localized hot spot was investigated experimentally. Water and ethanol were used as working liquids with a layer thickness of 300 μm. Basic steps of the breakdown process were found and mean velocities of the dry spot formation were determined. The formation of residual layer over the hot-spot before the breakdown has been found for both liquids. The creation of a droplet cluster near the heating region is observed when using water as a working fluid. It was shown that evaporation is one of the general factors influencing the process of layer breakdown and dry spot formation as well as thermocapillary effect.
url https://doi.org/10.1051/epjconf/201715900049
work_keys_str_mv AT spesivtsevserafim breakdowndynamicsofahorizontalevaporatingliquidlayerwhenheatedlocally
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