Influence of the surface viscosity on the breakup of a surfactant-laden drop

Vega De Prada, Jose Manuel and Ponce-torres, A. and Montanero, J. M. and Herrada, M. A. and Vega, E. J. (2017). Influence of the surface viscosity on the breakup of a surfactant-laden drop. "Physical Review Letters", v. 118 (n. 2); pp.. ISSN 0031-9007. https://doi.org/10.1103/PhysRevLett.118.024501.

Description

Title: Influence of the surface viscosity on the breakup of a surfactant-laden drop
Author/s:
  • Vega De Prada, Jose Manuel
  • Ponce-torres, A.
  • Montanero, J. M.
  • Herrada, M. A.
  • Vega, E. J.
Item Type: Article
Título de Revista/Publicación: Physical Review Letters
Date: 2017
Volume: 118
Subjects:
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Matemática Aplicada a la Ingeniería Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainTRA2013-45808-RUnspecifiedUnspecifiedSimulación eficiente de sistemas aeronáuticos

More information

Item ID: 50241
DC Identifier: http://oa.upm.es/50241/
OAI Identifier: oai:oa.upm.es:50241
DOI: 10.1103/PhysRevLett.118.024501
Official URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.024501
Deposited by: Memoria Investigacion
Deposited on: 08 Feb 2019 11:45
Last Modified: 25 Mar 2019 14:34
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