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Influence of the secondary motions on pollutant mixing in a meandering open channel flow

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Influence of the secondary motions on pollutant mixing in a meandering open channel flow

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dc.contributor.author Moncho Esteve, Ignacio José es_ES
dc.contributor.author Folke, F. es_ES
dc.contributor.author García-Villalba, Manuel es_ES
dc.contributor.author Palau-Salvador, Guillermo es_ES
dc.date.accessioned 2020-07-18T03:31:28Z
dc.date.available 2020-07-18T03:31:28Z
dc.date.issued 2017-08 es_ES
dc.identifier.issn 1567-7419 es_ES
dc.identifier.uri http://hdl.handle.net/10251/148235
dc.description.abstract [EN] This paper presents large eddy simulation of turbulent flow in a meandering open channel with smooth wall and rectangular cross-section. The Reynolds number based on the channel height is 40,000 and the aspect ratio of the cross-section is 4.48. The depthaveraged mean stream-wise velocity agree well to experimental measurements. In this specific case, two interacting cells are formed that swap from one bend to the other. Transport and mixing of a pollutant is analysed using three different positions of release, e.g. on the inner bank, on the outer bank and on the centre of the cross section. The obtained depth-average mean concentration profiles are reasonably consistent with available experimental data. The role of the secondary motions in the mixing processes is the main focus of the discussion. It is found that the mixing when the scalar is released on the centre of the cross-section is stronger and faster than the mixing of the scalar released on the sides. When the position of release is close to a bank side, the mixing is weaker and a clear concentration of scalar close to the corresponding side-wall can be observed in both cases. es_ES
dc.description.sponsorship MGV acknowledges the financial support of the Spanish Ministry of Education through the program Jose Castillejo. es_ES
dc.language Inglés es_ES
dc.publisher Springer-Verlag es_ES
dc.relation.ispartof Environmental Fluid Mechanics es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Large Eddy simulation es_ES
dc.subject Pollutant mixing es_ES
dc.subject River flow es_ES
dc.subject Turbulence es_ES
dc.subject.classification INGENIERIA AGROFORESTAL es_ES
dc.title Influence of the secondary motions on pollutant mixing in a meandering open channel flow es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s10652-017-9513-4 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Rural y Agroalimentaria - Departament d'Enginyeria Rural i Agroalimentària es_ES
dc.description.bibliographicCitation Moncho Esteve, IJ.; Folke, F.; García-Villalba, M.; Palau-Salvador, G. (2017). Influence of the secondary motions on pollutant mixing in a meandering open channel flow. Environmental Fluid Mechanics. 17(4):695-714. https://doi.org/10.1007/s10652-017-9513-4 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1007/s10652-017-9513-4 es_ES
dc.description.upvformatpinicio 695 es_ES
dc.description.upvformatpfin 714 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 17 es_ES
dc.description.issue 4 es_ES
dc.relation.pasarela S\361550 es_ES
dc.contributor.funder Ministerio de Educación es_ES
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