Coherent structures and bubble-particle velocity in 2-D fluidized beds

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dc.contributor.author Sánchez Delgado, Sergio
dc.contributor.author Almendros Ibáñez, José Antonio
dc.contributor.author Soria Verdugo, Antonio
dc.contributor.author Santana Santana, Domingo José
dc.contributor.author Ruiz-Rivas Hernando, Ulpiano
dc.date.accessioned 2008-05-23T08:13:06Z
dc.date.available 2008-05-23T08:13:06Z
dc.date.issued 2008-05-13
dc.identifier.bibliographicCitation J. Werther, W. Nowak, , K.E. Wirth, E.U. Hartge (Eds.). Proceedings of the CFB-9, May 2008, pp. 1007-1012
dc.identifier.isbn 978-3-930400-57-7
dc.identifier.uri http://hdl.handle.net/10016/2600
dc.description.abstract This work presents an experimental study to characterize ascending bubbles and granular velocity in the dense phase of a 2-D fluidized bed. Three different non-intrusive techniques based on images obtained with a high speed camera are developed, and applied to the images. First the bubble paths are characterized with time-average concentration maps and the bubble velocities are obtained, using a tracking algorithm over the mass centers of the bubbles. Finally, a PIV (particle image velocimetry) method is used to characterize the particle velocity vectors. This procedure is repeated for different bed aspect ratios, and different superficial gas velocities. This study analyzes the superficial gas velocity influence on the bed behavior, and how the bubble path configuration depends on the bed aspect ratio. The PIV measurements give us information on the location of the recirculation regions and the influence of the superficial gas velocity.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.language.iso eng
dc.publisher J. Werther, W. Nowak, K.E. Wirth and E.U. Hartge
dc.subject.other 2-D fluidized bed
dc.subject.other Bubble velocity
dc.subject.other Particle velocity
dc.subject.other PIV
dc.title Coherent structures and bubble-particle velocity in 2-D fluidized beds
dc.type bookPart
dc.type conferenceObject
dc.type.review PeerReviewed
dc.description.status Publicado
dc.subject.eciencia Ingeniería Industrial
dc.subject.eciencia Física
dc.rights.accessRights openAccess
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