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Oil in water injection from a submerged nozzle

Abstract : When a certain amount of oil is injected upwardly through a vertical nozzle submerged in water, the oil-water interface evolves, for large orifices, from a sessile shape, to a cap profile with a roll-up border. The numerical simulation of such liquid-liquid interface evolution was made through the Boundary Element Method (BEM), by assuming a potential flow of a viscous fluid. At the end of the computed process, the velocity field behaviour leads to an inward rolling up movement of the cap border, simultaneously with the interface necking near the orifice level. Such velocity field precedes typically a vortex ring formation. An olive oil-water couple has been selected, because of the appropriate physical properties of those liquids: comparable densities, huge difference of viscosities, and very small interfacial tension
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  • HAL Id : hal-00182349, version 1




C. Georgescu, Edouard Canot, Jean-Luc Achard. Oil in water injection from a submerged nozzle. Scientific bulletin of the Politehnica University of Timisoara., 2006, 51 (65), pp.67-74. ⟨hal-00182349⟩



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