Bursting of Dilute Emulsion-Based Liquid Sheets Driven by a Marangoni Effect

Autor: Clara Vernay, Christian Ligoure, Laurence Ramos
Přispěvatelé: Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2015
Předmět:
[PHYS.PHYS.PHYS-FLU-DYN]Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn]
genetic structures
Astrophysics::High Energy Astrophysical Phenomena
Nucleation
General Physics and Astronomy
FOS: Physical sciences
Nanotechnology
02 engineering and technology
Condensed Matter - Soft Condensed Matter
01 natural sciences
010305 fluids & plasmas
Surface tension
Physics::Fluid Dynamics
Bursting
General Relativity and Quantum Cosmology
0103 physical sciences
Physics
Marangoni effect
Fluid Dynamics (physics.flu-dyn)
Marangoni number
Mechanics
Physics - Fluid Dynamics
021001 nanoscience & nanotechnology
Condensed Matter::Soft Condensed Matter
Emulsion
Soft Condensed Matter (cond-mat.soft)
0210 nano-technology
[PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft]
Zdroj: Physical Review Letters
Physical Review Letters, American Physical Society, 2015, 115 (19), pp.198302. ⟨10.1103/PhysRevLett.115.198302⟩
ISSN: 0031-9007
1079-7114
DOI: 10.1103/PhysRevLett.115.198302⟩
Popis: We study the destabilization mechanism of thin liquid sheets expanding in air and show that dilute oil-in-water emulsion-based sheets disintegrate through the nucleation and growth of holes that perforate the sheet. The velocity and thickness fields of the sheet outside the holes are not perturbed by holes and hole opening follows a Taylor-Culick law. We find that a pre-hole, which widens and thins out the sheet with time, systematically precedes the hole nucleation. The growth dynamics of the pre-hole follows the law theoretically predicted for a liquid spreading on another liquid of higher surface tension due to Marangoni stresses. Classical Marangoni spreading experiments quantitatively corroborate our findings.
Physical Review Letters in press
Databáze: OpenAIRE
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