Dynamics of a surfactant-laden bubble bursting through an interface
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
We study the effect of surfactant on the dynamics of a bubble bursting through an interface. We perform fully three-dimensional direct numerical simulations using a hybrid interface-tracking/level-set method accounting for surfactant-induced Marangoni stresses, sorption kinetics and diffusive effects. We select an initial bubble shape corresponding to a large Laplace number and a vanishingly small Bond number in order to neglect gravity, and isolate the effects of surfactant on the flow. Our results demonstrate that the presence of surfactant affects the dynamics of the system through Marangoni-induced flow, driving motion from high to low concentration regions, which is responsible for the onset of a recirculation zone close to the free surface. These Marangoni stresses rigidify the interface, delay the cavity collapse and influence the jet breakup process.
Date Issued
2021-03-25
Date Acceptance
2021-02-01
Citation
Journal of Fluid Mechanics, 2021, 911, pp.1-17
ISSN
0022-1120
Publisher
Cambridge University Press (CUP)
Start Page
1
End Page
17
Journal / Book Title
Journal of Fluid Mechanics
Volume
911
Copyright Statement
© The Author(s), 2021. Published by Cambridge University Press. This article has been published in a revised form in Journal of Fluid Mechanics https://doi.org/10.1017/jfm.2020.1099. This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works.
Identifier
https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/dynamics-of-a-surfactantladen-bubble-bursting-through-an-interface/E3AE192F73A44A60853C7948D695FB5C
Subjects
Science & Technology
Technology
Physical Sciences
Mechanics
Physics, Fluids & Plasmas
Physics
bubble dynamics
capillary flows
multiphase flow
SOLUBLE SURFACTANTS
MULTIPHASE FLOW
FRONT TRACKING
FLUID
DROPS
BREAKUP
SIZE
SEA
Fluids & Plasmas
01 Mathematical Sciences
09 Engineering
Publication Status
Published
Article Number
A57
Date Publish Online
2021-02-03