Open AccessConvection in an evaporating drop of aqueous solution at a high concentration of microscopic particles
Author(s) -
S.Y. Misyura,
A. V. Bilsky,
O. A. Gobyzov,
M.N. Ryabov,
В. С. Морозов
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2057/1/012100
Subject(s) - convection , drop (telecommunication) , aqueous solution , materials science , colloid , evaporation , mass transfer , deposition (geology) , mechanics , heat transfer , drop impact , thermodynamics , chemistry , composite material , physics , geology , wetting , telecommunications , paleontology , sediment , computer science
This article presents the performed experimental studies on the effect of the concentration of microparticles on free convection in a water drop located on a heated smooth and textured wall surface. It is shown that at a high concentration of particles, their aggregation and deposition take place on the wall and on the free surface of droplet. As a result, the average convection velocity in the droplet decreases significantly. Suppression of convection is important to consider when simulating heat transfer and droplet evaporation. The results obtained are important for technologies that use colloidal solutions (drops, films).