Dynamics of a Water Droplet over a Sessile Oil Droplet: Compound Droplets Satisfying a Neumann Condition

Langmuir : the ACS Journal of Surfaces and Colloids
R IqbalAmy Q Shen

Abstract

We report the dynamics of compound droplets with a denser liquid (water) droplet over a less dense sessile droplet (mineral oil) that satisfies the Neumann condition. For a fixed size of an oil droplet, depending on the size of the water droplet, either it attains the axisymmetric position or tends to migrate toward the edge of the oil droplet. For a water droplet-to-oil droplet at volume ratio Vw/Vo ≥ 0.05, stable axisymmetric configuration is achieved; for Vw/Vo < 0.05, migration of water droplet is observed. The stability and migration of water droplets of size above and below critical size, respectively, are explained using the force balance at the three-phase contact line and film tension. The larger and smaller droplets that initially attain the axisymmetric position or some radial position, respectively, evaporate continuously and thus migrate toward the edge of the oil droplet. The radial location and migration of the water droplets of different initial sizes with respect to time are studied. Experiments with water droplets on a flat oil-air interface did not show migration, which signified the role of the curved oil-air interface for droplet migration. Finally, coalescence of water droplets of size above the critical s...Continue Reading

References

Sep 30, 1999·Journal of Colloid and Interface Science·M AratonoT Takiue
Nov 23, 2000·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·R D DeeganT A Witten
Aug 26, 2004·Advances in Colloid and Interface Science·A Amirfazli, A W Neumann
May 31, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Benjamin SteinhausAmy Q Shen
Jun 6, 2006·The Lancet Oncology
Apr 3, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·C W Extrand, Sung In Moon
Jun 13, 2009·Physical Review Letters·Xavier NoblinFranck Celestini
Sep 3, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·J C BurtonP Taborek
Dec 21, 2011·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·O M LavrentevaA Nir
Feb 23, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Chi M PhanMoses O Tade
Jan 9, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Chi M Phan
May 14, 2014·Proceedings of the National Academy of Sciences of the United States of America·Jonathan B BoreykoC Patrick Collier
Feb 17, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Manoj K ChaudhurySusan Daniel
Jun 20, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Floriane WeyerNicolas Vandewalle
Jun 20, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Jianguo ZhangFrédéric Leroy
Oct 5, 2015·Journal of Colloid and Interface Science·Ying ZhangStephen Garoff
Oct 30, 2015·Journal of Colloid and Interface Science·Edward Bormashenko
Feb 24, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Priyanka BiswasPankaj Doshi
May 25, 2016·Advances in Colloid and Interface Science·Alex Nikolov, Darsh Wasan
Jun 15, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Saheli BiswasManoj K Chaudhury
Sep 20, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·D GeorgeA K Sen
Jul 17, 2007·Soft Matter·Minseok SeoEugenia Kumacheva

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Citations

May 16, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Mohammad Jamali, Hooman Vahedi Tafreshi
Sep 19, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Shubhi Bansal, Prosenjit Sen
Sep 19, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·S DhimanA K Sen
Sep 14, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Wei Sun, Fuqian Yang
Jun 11, 2020·Langmuir : the ACS Journal of Surfaces and Colloids·Guangle LiYi Y Zuo

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