Artículo
Influence of the Surface Viscosity on the Breakup of a Surfactant-Laden Drop
Autor/es | Ponce-Torres, Alberto
Montanero Fernández, José María Herrada Gutiérrez, Miguel Ángel Vega Rodríguez, Emilio José Vega de Prada, José Manuel |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos |
Fecha de publicación | 2017 |
Fecha de depósito | 2020-04-17 |
Publicado en |
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Resumen | We examine both theoretically and experimentally the breakup of a pendant drop loaded with an
insoluble surfactant. The experiments show that a significant amount of surfactant is trapped in the resulting
satellite ... We examine both theoretically and experimentally the breakup of a pendant drop loaded with an insoluble surfactant. The experiments show that a significant amount of surfactant is trapped in the resulting satellite droplet. This result contradicts previous theoretical predictions, where the effects of surface tension variation were limited to solutocapillarity and Marangoni stresses.We solve numerically the hydrodynamic equations, including not only those effects but also those of surface shear and dilatational viscosities. We show that surface viscosities play a critical role to explain the accumulation of surfactant in the satellite droplet. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España Junta de Extremadura |
Identificador del proyecto | DPI2013-46485-C3-1-R
TRA2013- 45808-R GR10047 |
Cita | Ponce-Torres, A., Montanero Fernández, J.M., Herrada Gutiérrez, M.Á., Vega Rodríguez, E.J. y Vega de Prada, J.M. (2017). Influence of the Surface Viscosity on the Breakup of a Surfactant-Laden Drop. Physical Review Letters, 118 (2), 024501-1-024501-5. |
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