Numerical simulation of a 3-D gas-solid fluidized bed: Comparison of TFM and CPFD numerical approaches and experimental validation

dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.contributor.authorCórcoles, J. I.
dc.contributor.authorAcosta Iborra, Antonio
dc.contributor.authorAlmendros Ibáñez, José Antonio
dc.contributor.authorSobrino Fernández, Celia
dc.contributor.funderAgencia Estatal de Investigación (España)es
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)es
dc.description.abstractThis paper presents the results of a 3-D numerical simulation of a freely bubbling fluidized bed, based on the Eulerian¿Lagrangian approach, using the software Barracuda (CPFD-Barracuda). The main results obtained were assessed in terms of frequency analysis, bubble pierced length, bubble size, bubble passage frequency and bubble velocity. The results obtained were also compared with experimental data obtained in a 3-D fluidized bed using pressure and optical probes, and with the numerical results using the more common Eulerian-Eulerian approach, implemented in the commercial software Fluent (TFM-Fluent). The results show that CPFD-Barracuda satisfactorily predicts the global behaviour of bubbling beds with a low computational cost, although it computes smaller bubble sizes and lower bubble velocities than TFM-Fluent and experiments. Additionally, the spectra of pressure and particle volume fraction obtained with CPFD-Barracuda resemble those from the experiments and the TFM-Fluent simulations, but with a larger contribution of lower frequencies. The peaks of the pressure spectra from CPFD-Barracuda are close to those from the experiments and the TFM-Fluent simulations, whereas those in the solid volume spectra seem to be underestimated by CPFD-Barracuda. The results also indicate that the particle fraction threshold value chosen to distinguish bubbles contours notably influences the results of the bubble characteristics, especially for TFM-Fluent, whereas CPFD-Barracuda is less sensitive to this threshold value.en
dc.description.sponsorshipThis work was partially funded by the Ministerio de Economía y Competitividad (Projects ENE2016-78908-R and RTI2018-096664- B-C21 (MICINN, FEDER/UE)) of the Spanish Government, the Regional Government of Castilla-La Mancha (project SBPLY/17/180501/000412) and the Ministerio de Ciencia, Innovación y Universidades - Agencia Estatal de Investigación (AEI) (RED2018-102431-T).en
dc.identifier.bibliographicCitationCórcoles, J., Acosta-Iborra, A., Almendros-Ibáñez, J., & Sobrino, C. (2021). Numerical simulation of a 3-D gas-solid fluidized bed: Comparison of TFM and CPFD numerical approaches and experimental validation. Advanced Powder Technology, 32(10), 3689–3705en
dc.identifier.publicationtitleAdvanced Powder Technologyen
dc.relation.projectIDGobierno de España. RTI2018-096664-B-C21es
dc.relation.projectIDGobierno de España. ENE2016-78908-Res
dc.relation.projectIDGobierno de España. RED2018-102431-Tes
dc.rights© 2021 The Society of Powder Technology Japan. Published by Elsevieren
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.subject.ecienciaIngeniería Industriales
dc.subject.otherComputational particles fluid dynamicen
dc.subject.otherFluidized beden
dc.subject.otherNumerical simulationen
dc.titleNumerical simulation of a 3-D gas-solid fluidized bed: Comparison of TFM and CPFD numerical approaches and experimental validationen
dc.typeresearch article*
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