Influence of the Surface Viscosity on the Breakup of a Surfactant-Laden Drop

A. Ponce-Torres, J. M. Montanero, M. A. Herrada, E. J. Vega, and J. M. Vega
Phys. Rev. Lett. 118, 024501 – Published 13 January 2017; Erratum Phys. Rev. Lett. 120, 099901 (2018)
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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.

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  • Received 2 September 2016

DOI:https://doi.org/10.1103/PhysRevLett.118.024501

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Fluid Dynamics

Erratum

Erratum: Influence of the Surface Viscosity on the Breakup of a Surfactant-Laden Drop [Phys. Rev. Lett. 118, 024501 (2017)]

A. Ponce-Torres, J. M. Montanero, M. A. Herrada, E. J. Vega, and J. M. Vega
Phys. Rev. Lett. 120, 099901 (2018)

Authors & Affiliations

A. Ponce-Torres1, J. M. Montanero1, M. A. Herrada2, E. J. Vega1, and J. M. Vega3

  • 1Depto. de Ingeniería Mecánica, Energética y de los Materiales and Instituto de Computación Científica Avanzada (ICCAEx), Universidad de Extremadura, E-06006 Badajoz, Spain
  • 2Depto. de Mecánica de Fluidos e Ingeniería Aeroespacial, Universidad de Sevilla, E-41092 Sevilla, Spain
  • 3E.T.S.I. Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Plaza Cardenal Cisneros 3, 28040 Madrid, Spain

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Issue

Vol. 118, Iss. 2 — 13 January 2017

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