Breakdown dynamics of a horizontal evaporating liquid layer when heated locally

Serafim Spesivtsev

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Article number0049
JournalEPJ Web of Conferences
Volume159
DOIs
Publication statusPublished - 25 Oct 2017

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