DC FieldValueLanguage
dc.contributorDepartment of Applied Mathematics-
dc.creatorQiao, Z-
dc.creatorYang, X-
dc.creatorZhang, Y-
dc.date.accessioned2021-04-13T06:08:39Z-
dc.date.available2021-04-13T06:08:39Z-
dc.identifier.issn0017-9310-
dc.identifier.urihttp://hdl.handle.net/10397/89607-
dc.language.isoenen_US
dc.publisherPergamon Pressen_US
dc.subjectDiffuse interface modelen_US
dc.subjectMRT lattice Boltzmann methoden_US
dc.subjectMulti-phase fluid flowen_US
dc.subjectPeng-Robinson equation of stateen_US
dc.titleThermodynamic-consistent multiple-relaxation-time lattice Boltzmann equation model for two-phase hydrocarbon fluids with Peng-Robinson equation of stateen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage1216-
dc.identifier.epage1226-
dc.identifier.volume141-
dc.identifier.doi10.1016/j.ijheatmasstransfer.2019.07.023-
dcterms.abstractIn this work, a multiple-relaxation-time (MRT) lattice Boltzmann (LB) equation model with Beam-Warming (B-W) scheme is proposed to simulate a multi-phase fluid system with Peng-Robinson (P-R) equation of state (EOS). The mathematical model of the multi-phase fluid flow is derived based on the NVT-based framework, where the Helmholtz free energy of P-R EOS is introduced. The nonideal force in the multi-phase flow is directly computed from the free energy in order to obtain a more compact formulation of hydrodynamic equations, which is termed as potential form. The MRT-LB model is developed based on the potential form of hydrodynamic equations, which can eliminate spurious currents effectively. In addition, to capture the tiny nonconvex perturbation from the linear trend of P-R model precisely, the B-W scheme is utilized in the present MRT-LB model, which gives rise to an adjustable Courant-Friedrichs-Lewy (CFL) number. Also, the second order accuracy can be naturally achieved by this scheme without any other requirements and numerical boundary conditions. In the numerical experiments, a realistic hydrocarbon component (isobutane) in three dimensional space is simulated by the proposed MRT-LB model. Numerical results show that the magnitude of spurious currents can be significantly reduced by the present MRT-LB model. In addition, our numerical predictions of surface tension agree well with the experimental data, which verify the effectiveness of the proposed MRT-LB model.-
dcterms.accessRightsembargoed access-
dcterms.bibliographicCitationInternational journal of heat and mass transfer, Oct. 2019, v. 141, p. 1216-1226-
dcterms.isPartOfInternational journal of heat and mass transfer-
dcterms.issued2019-10-
dc.identifier.scopus2-s2.0-85068999631-
dc.identifier.eissn1879-2189-
dc.description.validate202104 bcvc-
dc.description.oaNot applicable-
dc.identifier.FolderNumbera0711-n04-
dc.identifier.SubFormID1200-
dc.description.fundingSourceRGC-
dc.description.fundingSourceOthers-
dc.description.fundingText15325816-
dc.description.fundingText1-YW1D-
dc.description.pubStatusPublished-
dc.date.embargo2021.10.31en_US
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