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dc.contributor.authorMontellà, E.P.
dc.contributor.authorYuan, C.
dc.contributor.authorChareyre, B.
dc.contributor.authorGens Solé, Antonio
dc.date.accessioned2020-06-04T09:01:41Z
dc.date.available2020-06-04T09:01:41Z
dc.date.issued2019
dc.identifier.isbn978-84-949194-5-9
dc.identifier.urihttp://hdl.handle.net/2117/189951
dc.description.abstractBy means of the multicomponent Shan-Chen lattice Boltzmann method (LBM), we investigate the multiphase flow through porous media. Despite the excellent accuracy of the LBM, large domains result in unaffordable computational expenses. The Hybrid model developed in this study is based on a pore-network (PN) approach that enhances a decomposition of the granular assembly into small subsets (pore throats). Lattice Boltzmann simulations are performed for each pore throat to determine the hydrodynamic properties (entry capillary pressure, primary drainage curve, liquid morphology, etc) at the microscale. The local properties obtained with LBM are incorporated at the network to solve the larger-scale problem. This strategy leads to a significant decrease of the computation time at the sample-scale compared to a fully resolved method. Fluid morphology and phase distribution are evaluated during the drainage of a small granular assembly using the Hybrid model (PN-LBM). Results are contrasted with those obtained in a fully resolved simulation (LBM). The agreement between the two models illustrates the capability of the Hybrid method, which combines the efficiency of the PN approach and the accuracy of the LBM at the pore scale.
dc.format.extent9 p.
dc.language.isoeng
dc.publisherCIMNE
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshFinite element method
dc.subject.lcshCoupled problems (Complex systems) -- Numerical solutions
dc.subject.otherWet granular materials, multiphase flow, Lattice Boltzmann, porous media, pore-network, pore-scale
dc.titleA hybrid multiphase model based on Lattice Boltzmann method direct simulation
dc.typeConference report
dc.subject.lemacElements finits, Mètode dels
dc.rights.accessOpen Access
local.citation.contributorCOUPLED VIII
local.citation.publicationNameCOUPLED VIII : proceedings of the VIII International Conference on Computational Methods for Coupled Problems in Science and Engineering
local.citation.startingPage70
local.citation.endingPage78


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