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Flowering in bursting bubbles with viscoelastic interfaces.
Tammaro, Daniele; Chandran Suja, Vinny; Kannan, Aadithya; Gala, Luigi Davide; Di Maio, Ernesto; Fuller, Gerald G; Maffettone, Pier Luca.
Afiliación
  • Tammaro D; Dipartimento di Ingegneria Chimica, Materiali e della Produzione Industriale, University of Naples Federico II, I-80125 Napoli, Italy.
  • Chandran Suja V; Department of Chemical Engineering, Stanford University, Stanford, CA 94305.
  • Kannan A; Department of Chemical Engineering, Stanford University, Stanford, CA 94305.
  • Gala LD; Dipartimento di Ingegneria Chimica, Materiali e della Produzione Industriale, University of Naples Federico II, I-80125 Napoli, Italy.
  • Di Maio E; Dipartimento di Ingegneria Chimica, Materiali e della Produzione Industriale, University of Naples Federico II, I-80125 Napoli, Italy.
  • Fuller GG; Department of Chemical Engineering, Stanford University, Stanford, CA 94305.
  • Maffettone PL; Dipartimento di Ingegneria Chimica, Materiali e della Produzione Industriale, University of Naples Federico II, I-80125 Napoli, Italy; p.maffettone@unina.it.
Proc Natl Acad Sci U S A ; 118(30)2021 07 27.
Article en En | MEDLINE | ID: mdl-34301872
The lifetime of bubbles, from formation to rupture, attracts attention because bubbles are often present in natural and industrial processes, and their geometry, drainage, coarsening, and rupture strongly affect those operations. Bubble rupture happens rapidly, and it may generate a cascade of small droplets or bubbles. Once a hole is nucleated within a bubble, it opens up with a variety of shapes and velocities depending on the liquid properties. A range of bubble rupture modes are reported in literature in which the reduction of a surface energy drives the rupture against inertial and viscous forces. The role of surface viscoelasticity of the liquid film in this colorful scenario is, however, still unknown. We found that the presence of interfacial viscoelasticity has a profound effect in the bubble bursting dynamics. Indeed, we observed different bubble bursting mechanisms upon the transition from viscous-controlled to surface viscoelasticity-controlled rupture. When this transition occurs, a bursting bubble resembling the blooming of a flower is observed. A simple modeling argument is proposed, leading to the prediction of the characteristic length scales and the number and shape of the bubble flower petals, thus paving the way for the control of liquid formulations with surface viscoelasticity as a key ingredient. These findings can have important implications in the study of bubble dynamics, with consequences for the numerous processes involving bubble rupture. Bubble flowering can indeed impact phenomena such as the spreading of nutrients in nature or the life of cells in bioreactors.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Simulación por Computador / Sustancias Viscoelásticas Tipo de estudio: Prognostic_studies Límite: Humans Idioma: En Revista: Proc Natl Acad Sci U S A Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Simulación por Computador / Sustancias Viscoelásticas Tipo de estudio: Prognostic_studies Límite: Humans Idioma: En Revista: Proc Natl Acad Sci U S A Año: 2021 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos