Suppression of Marangoni convection by surfactant during drops interaction

V. V. Glezer, A. G. Islamova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Marangoni convection in a sessile drop of water on a heated wall was experimentally studied when a cold droplet fell on the hot surface. A comparison of the effect of an incident drop consisting of water and water with a volume concentration of 8% of the surfactant "AF 9-10" (Neonol) was made. The temperature of the falling drop was 24 °C and the wall temperature was 92 °C. The droplet fall of water led to an increase in the average drop velocity by 7-8 times. The use of surfactants led to a decrease in the jump in average speed by 1.7-1.8 times in comparison with liquid without surfactant.

Original languageEnglish
Title of host publicationThermophysical Basis of Energy Technologies, TBET 2019
EditorsGeniy Kuznetsov, Dmitry Feoktistov, Evgeniya Orlova
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735419636
DOIs
Publication statusPublished - 13 Mar 2020
Event2019 Thermophysical Basis of Energy Technologies - Tomsk, Russian Federation
Duration: 9 Oct 201911 Oct 2019

Publication series

NameAIP Conference Proceedings
Volume2212
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2019 Thermophysical Basis of Energy Technologies
CountryRussian Federation
CityTomsk
Period9.10.1911.10.19

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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