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Letter: The link between the Reynolds shear stress and the large structures of turbulent Couette-Poiseuille flow

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Letter: The link between the Reynolds shear stress and the large structures of turbulent Couette-Poiseuille flow

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dc.contributor.author Gandía-Barberá, Sergio es_ES
dc.contributor.author Hoyas, S es_ES
dc.contributor.author Oberlack, Martin es_ES
dc.contributor.author Kraheberger, Stefanie es_ES
dc.date.accessioned 2021-11-12T19:30:57Z
dc.date.available 2021-11-12T19:30:57Z
dc.date.issued 2018-04 es_ES
dc.identifier.issn 1070-6631 es_ES
dc.identifier.uri http://hdl.handle.net/10251/177030
dc.description.abstract [EN] The length and width of the long and wide structures appearing in turbulent Couette flows are studied by means of a new dataset of direct numerical simulation covering a stepped transition from pure Couette flow to pure Poiseuille one, at Re-tau approximate to 130, based on the stationary wall. The existence of these structures is linked to the averaged Reynolds stress, (uv) over bar : as soon as in any part of the channel (uv) over bar changes its sign, the structures disappear. The length and width of the rolls are found to be, approximately, 50h and 2.5h, respectively. For this Reynolds number, simulations with a domain shorter than 100h cannot properly describe the behaviour of the longest structures of the flow. es_ES
dc.description.sponsorship This work was supported by MINECO, under Project No. ENE2015-71333-R. The work of M. Oberlack was supported by the German Research Foundation (DFG) under the Grant No. OB96/39-1. The computations of the new simulations were made possible by a generous grant of computing time from the Supercomputing centre of the Universitat Politecnica de Valencia. We are grateful to Mr. Simon Hoyas for fruitful conversations about the paper. es_ES
dc.language Inglés es_ES
dc.publisher American Institute of Physics es_ES
dc.relation.ispartof Physics of Fluids es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject.classification INGENIERIA AEROESPACIAL es_ES
dc.title Letter: The link between the Reynolds shear stress and the large structures of turbulent Couette-Poiseuille flow es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1063/1.5028324 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MINECO//ENE2015-71333-R/ES/CONVECCION FORZADA EN CANALES TURBULENTOS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/DFG//OB96%2F39-1/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Gandía-Barberá, S.; Hoyas, S.; Oberlack, M.; Kraheberger, S. (2018). Letter: The link between the Reynolds shear stress and the large structures of turbulent Couette-Poiseuille flow. Physics of Fluids. 30(4):1-4. https://doi.org/10.1063/1.5028324 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1063/1.5028324 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 4 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 30 es_ES
dc.description.issue 4 es_ES
dc.relation.pasarela S\362175 es_ES
dc.contributor.funder Deutsche Forschungsgemeinschaft es_ES
dc.contributor.funder MINISTERIO DE ECONOMIA INDUSTRIA Y COMPETITIVIDAD es_ES


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