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dc.contributor.author
Thomas, Luis Pablo
dc.contributor.author
Marino, Beatriz Maria
dc.date.available
2023-08-21T16:54:51Z
dc.date.issued
2011-06
dc.identifier.citation
Thomas, Luis Pablo; Marino, Beatriz Maria; Inertial Density Currents over Porous Media Limited by Different Lower Boundary Conditions; American Society of Civil Engineers; Journal of Hydraulic Engineering; 138; 2; 6-2011; 133-142
dc.identifier.issn
0733-9429
dc.identifier.uri
http://hdl.handle.net/11336/208808
dc.description.abstract
We study the evolution of two-dimensional high-Reynolds-number density currents propagating over horizontal porous substrates initially saturated with a lighter fluid when an impermeable surface under the bed is used and a Darcy flow through the medium takes place. Laboratory experiments were performed varying the initial characteristic parameters such as the volume released, the height-to-width ratio of the dense fluid, the relative density difference between the current and ambient fluids, and the bed depth. The dynamic changes of the gravitydriven flow and the influence of the thickness of the porous substrate are described by means of an empirical analysis that considers two lower boundary conditions of the bed, that is, when it is bounded from below by an impermeable or a permeable layer. Thus, the new experimental results are integrated to previous findings in a unified theoretical treatment. In the present case, the dense fluid penetrates into the porous layer pushing the lighter one through the upper boundary located ahead of the current, as shown by the vorticity distribution, and modifying the interaction between the flows over and inside the bed. This flow in the neighborhood of the front, although important, is smaller than the one that would pass through the lower boundary if this were permeable.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Society of Civil Engineers
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DENSITY CURRENTS
dc.subject
POROUS MEDIA
dc.subject
STRATIFIED FLOW
dc.subject
LABORATORY MEASUREMENTS
dc.subject.classification
Física de los Fluidos y Plasma
dc.subject.classification
Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Inertial Density Currents over Porous Media Limited by Different Lower Boundary Conditions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-04-19T15:02:49Z
dc.journal.volume
138
dc.journal.number
2
dc.journal.pagination
133-142
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Reston
dc.description.fil
Fil: Thomas, Luis Pablo. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Tandil. Sede Tandil del Centro de Investigaciones En Fisica E Ingenieria del Centro de la Provincia de Buenos Aires; Argentina
dc.description.fil
Fil: Marino, Beatriz Maria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - Tandil. Sede Tandil del Centro de Investigaciones En Fisica E Ingenieria del Centro de la Provincia de Buenos Aires; Argentina
dc.journal.title
Journal of Hydraulic Engineering
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://ascelibrary.org/doi/10.1061/%28ASCE%29HY.1943-7900.0000477
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0000477
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