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Development of an empirical wall-friction model for 2D simulations of pseudo-2D bubbling fluidized beds

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sosteniblees
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorHernández Jiménez, Fernando
dc.contributor.authorSánchez Prieto, Javier
dc.contributor.authorCano Pleite, Eduardo
dc.contributor.authorGarcía Gutiérrez, Luis Miguel
dc.contributor.authorAcosta Iborra, Antonio
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2021-04-27T11:13:57Z
dc.date.available2021-04-27T11:13:57Z
dc.date.issued2016-03
dc.description.abstractPseudo-2D fluidized beds have been crucial for the understanding of the dynamics of gas-particle systems. In these systems the distance between the front and back walls is narrow, which restricts and creates a resistance to the solids motion, leading to a different flow behaviour compared to fully 3D systems. This interaction of the particle motion with the walls can be significant and should not be neglected in numerical simulations. The present work develops a new model to easily account for the friction effect between the walls and the particles in a pseudo-2D bed. The model is based on experimental results combined with simplifications of the shear force on a wall provided by the kinetic theory of granular flows. The dependence on the particle diameter and bed thickness is directly introduced in the model through the use of a straightforward expression that is easy to code and does not lead to numerical divergence. To test the model two beds of different thickness were simulated, and the resulting time-averaged solids concentration and velocity as well as bubble properties were compared with experiments. It is shown that the numerical results with the new wall-friction model improve the prediction of the standard 2D-simulations.en
dc.format.extent10
dc.identifier.bibliographicCitationHernández-Jiménez, F., Sánchez-Prieto, J., Cano-Pleite, E., Garcia-Gutierrez, L. & Acosta-Iborra, A. (2016). Development of an empirical wall-friction model for 2D simulations of pseudo-2D bubbling fluidized beds. Advanced Powder Technology, 27(2), pp. 521-530.en
dc.identifier.doihttps://doi.org/10.1016/j.apt.2016.02.001
dc.identifier.issn0921-8831
dc.identifier.publicationfirstpage521
dc.identifier.publicationissue2
dc.identifier.publicationlastpage530
dc.identifier.publicationtitleAdvanced Powder Technologyen
dc.identifier.publicationvolume27es
dc.identifier.urihttps://hdl.handle.net/10016/32494
dc.identifier.uxxiAR/0000017868
dc.language.isoeng
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. DPI2009-10518es
dc.relation.projectIDComunidad de Madrid. S2009/ENE-1660es
dc.rights© 2016 The Society of Powder Technology Japan.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.otherFluidized beden
dc.subject.otherPseudo-2Den
dc.subject.otherWall frictionen
dc.subject.otherCFDen
dc.titleDevelopment of an empirical wall-friction model for 2D simulations of pseudo-2D bubbling fluidized bedsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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