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dc.contributor.author
Diez, Javier Alberto
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dc.contributor.author
Kondic, Lou
dc.date.available
2024-07-12T11:51:10Z
dc.date.issued
2007-12
dc.identifier.citation
Diez, Javier Alberto; Kondic, Lou; On the breakup of fluid films of finite and infinite extent; American Institute of Physics; Physics of Fluids; 19; 7; 12-2007; 1-22
dc.identifier.issn
1070-6631
dc.identifier.uri
http://hdl.handle.net/11336/239766
dc.description.abstract
We study the dewetting process of thin fluid films that partially wet a solid surface. Using a long-wave lubrication approximation, we formulate a nonlinear partial differential equation governing the evolution of the film thickness, h. This equation includes the effects of capillarity, gravity, and an additional conjoining/disjoining pressure term to account for intermolecular forces. We perform standard linear stability analysis of an infinite flat film, and identify the corresponding stable, unstable, and metastable regions. Within this framework, we analyze the evolution of a semi-infinite film of length L in one direction. The numerical simulations show that for long and thin films, the dewetting fronts of the film generate a pearling process involving successive formation of ridges at the film ends and consecutive pinch-off behind these ridges. On the other hand, for shorter and thicker films, the evolution ends up by forming a single drop. The time evolution as well as the final drops pattern show a competition between the dewetting mechanisms caused by nucleation and by free surface instability. We find that precise computations, requiring quadrupole precision of computer arithmetic, are often needed to avoid spurious results.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Institute of Physics
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
THIN FILM
dc.subject
INSTABILITY
dc.subject
DROPS
dc.subject.classification
Otras Ciencias Físicas
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
On the breakup of fluid films of finite and infinite extent
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-07-11T11:44:36Z
dc.journal.volume
19
dc.journal.number
7
dc.journal.pagination
1-22
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: Diez, Javier Alberto. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Exactas. Instituto de Física Arroyo Seco; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil; Argentina
dc.description.fil
Fil: Kondic, Lou. New Jersey Institute of Technology; Estados Unidos
dc.journal.title
Physics of Fluids
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1063/1.2749515
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