Alina Chipaila | University Politehnica of Bucharest (original) (raw)
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Papers by Alina Chipaila
2017 International Conference on ENERGY and ENVIRONMENT (CIEM), 2017
This present paper investigates the selective withdrawal of a viscous liquid, layered on top of a... more This present paper investigates the selective withdrawal of a viscous liquid, layered on top of another denser immiscible liquid. By positioning a capillary near the interface, a thin stream of the lower liquid becomes entrained, as the upper fluid is being pumped out of the vessel that contains it. The phenomenon is observed at a critical position of the capillary nozzle, relative to the interface, and above a critical flow rate. Two immiscible Newtonian liquids were used, water and mineral oil. Both flow focusing and columnary rise phenomena are investigated.
E3S Web of Conferences
Motivated by the occurrence of the injection of liquids in various technical processes, we study ... more Motivated by the occurrence of the injection of liquids in various technical processes, we study the capillary instability of a liquid jet surrounded by another liquid. The study focuses on the natural developing Rayleigh instability, hence without an imposed perturbation. We also point out the influence of viscosity on the main drop diameter, resulted after jet breakup, and on the breakup length itself. Modifications brought by a decrease of the capillary nozzle are also emphasized for a particular case.
E3S Web of Conferences
Motivated by the occurrence of the injection of liquids in various technical processes, we study ... more Motivated by the occurrence of the injection of liquids in various technical processes, we study the capillary instability of a liquid jet surrounded by another liquid. The study focuses on the natural developing Rayleigh instability, hence without an imposed perturbation. We also point out the influence of viscosity on the main drop diameter, resulted after jet breakup, and on the breakup length itself. Modifications brought by a decrease of the capillary nozzle are also emphasized for a particular case.
2017 International Conference on ENERGY and ENVIRONMENT (CIEM), 2017
This present paper investigates the selective withdrawal of a viscous liquid, layered on top of a... more This present paper investigates the selective withdrawal of a viscous liquid, layered on top of another denser immiscible liquid. By positioning a capillary near the interface, a thin stream of the lower liquid becomes entrained, as the upper fluid is being pumped out of the vessel that contains it. The phenomenon is observed at a critical position of the capillary nozzle, relative to the interface, and above a critical flow rate. Two immiscible Newtonian liquids were used, water and mineral oil. Both flow focusing and columnary rise phenomena are investigated.
E3S Web of Conferences
Motivated by the occurrence of the injection of liquids in various technical processes, we study ... more Motivated by the occurrence of the injection of liquids in various technical processes, we study the capillary instability of a liquid jet surrounded by another liquid. The study focuses on the natural developing Rayleigh instability, hence without an imposed perturbation. We also point out the influence of viscosity on the main drop diameter, resulted after jet breakup, and on the breakup length itself. Modifications brought by a decrease of the capillary nozzle are also emphasized for a particular case.
E3S Web of Conferences
Motivated by the occurrence of the injection of liquids in various technical processes, we study ... more Motivated by the occurrence of the injection of liquids in various technical processes, we study the capillary instability of a liquid jet surrounded by another liquid. The study focuses on the natural developing Rayleigh instability, hence without an imposed perturbation. We also point out the influence of viscosity on the main drop diameter, resulted after jet breakup, and on the breakup length itself. Modifications brought by a decrease of the capillary nozzle are also emphasized for a particular case.