Open AccessExperimental study of the stratification of polydisperse emulsions in a cell with heated walls
Author(s) -
V. I. Valiullina,
A. I. Mullayanov,
А. А. Мусин,
Л. А. Ковалева
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 - 10.1088/1742-6596/2057/1/012041
Subject(s) - emulsion , materials science , convection , agglomerate , deposition (geology) , thermal , dispersion (optics) , viscosity , chemical engineering , thermodynamics , composite material , optics , geology , paleontology , physics , sediment , engineering
Experimental studies of the gravitational deposition of a polydisperse water-in-oil emulsion under heat influence are carried out. When the rate of thermal convection exceeds the rate of precipitation, partial delamination of the emulsion is found to occur. The viscosity of the dispersion medium decreases with increasing temperature, which contributes to an increase in the deposition rate of water droplets in the emulsion. In the presence of a temperature difference, convective flows occur in the liquid, while the drops of the emulsion coagulate and form larger agglomerates that settle faster to the bottom of the cell.