Reference : Critical parameters for the partial coalescence of a droplet
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/5198
Critical parameters for the partial coalescence of a droplet
English
[fr] Paramètres critiques de la coalescence partielle d'une gouttelette
Gilet, Tristan mailto [Université de Liège - ULiège > Département de physique > Physique statistique >]
Mulleners, Karen [> > > >]
Lecomte, Jean-Paul [> > > >]
Vandewalle, Nicolas mailto [Université de Liège - ULiège > Département de physique > Physique statistique >]
Dorbolo, Stéphane mailto [Université de Liège - ULiège > Département de physique > Physique statistique >]
Mar-2007
Physical Review. E ,Statistical, Nonlinear, and Soft Matter Physics
American Physical Soc
75
3, Pt 2
36303
Yes (verified by ORBi)
International
1539-3755
1550-2376
College Pk
MD
[en] Droplet ; Surface Tension ; Coalescence
[en] The partial coalescence of a droplet onto a planar liquid-liquid interface is investigated experimentally by tuning the viscosities of both liquids. The problem mainly depends on four dimensionless parameters: The Bond number (gravity vs surface tension), the Ohnesorge numbers (viscosity in both fluids vs surface tension), and the density relative difference. The ratio between the daughter droplet size and the mother droplet size is investigated as a function of these dimensionless numbers. Global quantities such as the available surface energy of the droplet have been measured during the coalescence. The capillary waves propagation and damping are studied in detail. The relation between these waves and the partial coalescence is discussed. Additional viscous mechanisms are proposed in order to explain the asymmetric role played by both viscosities.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/5198
10.1103/PhysRevE.75.036303

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