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dc.contributor.author
Perazzo, Carlos Alberto  
dc.contributor.author
Gratton, Julio  
dc.date.available
2020-04-30T20:13:28Z  
dc.date.issued
2008-04  
dc.identifier.citation
Perazzo, Carlos Alberto; Gratton, Julio; Asymptotic regimes of ridge and rift formation in a thin viscous sheet model; American Institute of Physics; Physics of Fluids; 20; 4; 4-2008; 431031-431038  
dc.identifier.issn
1070-6631  
dc.identifier.uri
http://hdl.handle.net/11336/104047  
dc.description.abstract
We numerically and theoretically investigate the evolution of the ridges and rifts produced by the convergent and divergent motions of two substrates over which an initially uniform layer of a Newtonian liquid rests. We put particular emphasis on the various asymptotic self-similar and quasi-self-similar regimes that occur in these processes. During the growth of a ridge, two self-similar stages occur; the first takes place in the initial linear phase, and the second is obtained for a large time. Initially, the width and the height of the ridge increase as t1/2. For a very large time, the width grows as t3/4, while the height increases as t1/4. On the other hand, in the process of formation of a rift, there are three self-similar asymptotics. The initial linear phase is similar to that for ridges. The second stage corresponds to the separation of the current in two parts, leaving a dry region in between. Last, for a very large t, each of the two parts in which the current has separated approaches the self-similar viscous dam break solution.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Institute of Physics  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Ridge formation  
dc.subject
Convergent flows  
dc.subject
Viscous gravity flow  
dc.subject.classification
Física de los Fluidos y Plasma  
dc.subject.classification
Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Asymptotic regimes of ridge and rift formation in a thin viscous sheet model  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2020-04-21T15:23:46Z  
dc.journal.volume
20  
dc.journal.number
4  
dc.journal.pagination
431031-431038  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Perazzo, Carlos Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Favaloro; Argentina  
dc.description.fil
Fil: Gratton, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina  
dc.journal.title
Physics of Fluids  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1063/1.2908356  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.2908356