dorsal/arxiv
View SchemaCritical parameters for the partial coalescence of a droplet
| Authors | T. Gilet, K. Mulleners, J. P. Lecomte, N. Vandewalle, S. Dorbolo |
|---|---|
| Categories | |
| ArXiv ID | physics/0608128 |
| URL | https://arxiv.org/abs/physics/0608128 |
| DOI | 10.1103/PhysRevE.75.036303 |
| Journal | Phys. Rev. E 75, 036303 (2007) |
Abstract
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 has 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.
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"abstract": "The partial coalescence of a droplet onto a planar liquid/liquid interface is\ninvestigated experimentally by tuning the viscosities of both liquids. The\nproblem mainly depends on four dimensionless parameters: the Bond number\n(gravity vs. surface tension), the Ohnesorge numbers (viscosity in both fluids\nvs. surface tension), and the density relative difference. The ratio between\nthe daughter droplet size and the mother droplet size is investigated as a\nfunction of these dimensionless numbers. Global quantities such as the\navailable surface energy of the droplet has been measured during the\ncoalescence. The capillary waves propagation and damping are studied in detail.\nThe relation between these waves and the partial coalescence is discussed.\nAdditional viscous mechanisms are proposed in order to explain the asymmetric\nrole played by both viscosities.",
"arxiv_id": "physics/0608128",
"authors": [
"T. Gilet",
"K. Mulleners",
"J. P. Lecomte",
"N. Vandewalle",
"S. Dorbolo"
],
"categories": [
"physics.flu-dyn"
],
"doi": "10.1103/PhysRevE.75.036303",
"journal_ref": "Phys. Rev. E 75, 036303 (2007)",
"title": "Critical parameters for the partial coalescence of a droplet",
"url": "https://arxiv.org/abs/physics/0608128"
},
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