Statics and dynamics of a cylindrical droplet under an external body force

The Journal of Chemical Physics
J Servantie, M Müller

Abstract

We study the rolling and sliding motion of droplets on a corrugated substrate by Molecular Dynamics simulations. Droplets are driven by an external body force (gravity) and we investigate the velocity profile and dissipation mechanisms in the steady state. The cylindrical geometry allows us to consider a large range of droplet sizes. The velocity of small droplets with a large contact angle is dominated by the friction at the substrate and the velocity of the center of mass scales like the square root of the droplet size. For large droplets or small contact angles, however, viscous dissipation of the flow inside the volume of the droplet dictates the center of mass velocity that scales linearly with the size. We derive a simple analytical description predicting the dependence of the center of mass velocity on droplet size and the slip length at the substrate. In the limit of vanishing droplet velocity we quantitatively compare our simulation results to the predictions and good agreement without adjustable parameters is found.

References

Dec 16, 1998·Journal of Colloid and Interface Science·A AmirfazliA W Neumann
May 1, 1986·Physical Review A: General Physics·G S Grest, K Kremer
Apr 1, 1994·Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics·L Bocquet, J L Barrat
May 3, 1993·Physical Review Letters·L Bocquet, J L Barrat
Oct 16, 1995·Physical Review Letters· Dos Santos FD, T Ondarçuhu
Dec 12, 2001·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·U ThieleY Pomeau
Jun 13, 2002·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Seok-Won LeePaul E Laibinis
Dec 20, 2003·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·Thomas SoddemannKurt Kremer
Feb 3, 2004·Physical Review Letters·Nikolai V Priezjev, Sandra M Troian
Feb 3, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·David R HeineEdmund B Webb
Aug 25, 2004·Physical Review Letters·Uwe ThieleMarkus Bär
Aug 25, 2004·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·David R HeineEdmund B Webb
Aug 11, 2005·Langmuir : the ACS Journal of Surfaces and Colloids·David R HeineEdmund B Webb
Oct 4, 2005·Physical Review Letters·David R HeineEdmund B Webb
Oct 4, 2005·Physical Review Letters·R FetzerT P Witelski
Nov 18, 2005·Journal of Colloid and Interface Science·Ho-Young KimByung Ha Kang
Apr 25, 2006·Journal of Colloid and Interface Science·Terence D Blake
Aug 16, 2006·Physical Review Letters·Nolwenn Le Grand-PiteiraLaurent Limat
Mar 17, 2007·The Journal of Chemical Physics·A I HienolaM Kulmala
Aug 7, 2007·Physical Review Letters·Markus RauscherJoel Koplik
Oct 13, 2007·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·C PastorinoK Binder
May 23, 2007·Soft Matter·Lydéric Bocquet, Jean-Louis Barrat

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Citations

Dec 14, 2011·The Journal of Chemical Physics·F Léonforte, M Müller
Jun 21, 2012·The Journal of Chemical Physics·Nikolai V Priezjev
Feb 19, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Sumesh P ThampiRama Govindarajan
Jun 10, 2011·Advances in Colloid and Interface Science·Mohamed E LabibRichard Lai
Mar 10, 2015·Physical Chemistry Chemical Physics : PCCP·Gokhan KacarGijsbertus de With
Nov 29, 2016·Soft Matter·Marzieh EbrahimiSavvas G Hatzikiriakos
Nov 4, 2010·Faraday Discussions·B M MognettiJ M Yeomans
Nov 18, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·A MoosaviS Dietrich
Apr 22, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·F LéonforteM Müller
Apr 22, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·F VarnikM Stamm
Apr 22, 2011·Journal of Physics. Condensed Matter : an Institute of Physics Journal·P Müller-BuschbaumC G Schroer
Mar 4, 2014·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M SbragagliaM Pierno
Sep 4, 2008·Physical Review Letters·J Servantie, M Müller

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