
DRIVEN DROPLETS BY THERMOCAPILLARY EFFECT: QUADRATIC DEPENDENCE OF THE SURFACE TENSION ON THE TEMPERATURE
Author(s) -
Jonatan R. Mac Intyre,
J. M. Gomba,
Carlos Alberto Perazzo
Publication year - 2020
Publication title -
anales/anales afa
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.14
H-Index - 2
eISSN - 1850-1168
pISSN - 0327-358X
DOI - 10.31527/analesafa.2020.31.3.107
Subject(s) - surface tension , wetting , temperature gradient , quadratic equation , materials science , focus (optics) , surface (topology) , mechanics , thermodynamics , tension (geology) , physics , composite material , optics , mathematics , geometry , meteorology , ultimate tensile strength
We study the migration of droplets on a solid surface which is under a uniform temperature gradient. The present article focus on partial wetting fluids which surface tension depends on the squared temperature. These type of liquids, called self-rewetting, show a complex dynamics and here we will compare with those liquids of linear dependence in the temperature. Unlike to the latter ones, the droplet width increases with the time.