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Improving accuracy of the moving grid particle finite element method via a scheme based on Strang splitting
dc.contributor.author | Martí, Julio Marcelo |
dc.contributor.author | Ryzhakov, Pavel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental |
dc.date.accessioned | 2020-10-27T12:18:57Z |
dc.date.available | 2022-06-27T00:31:16Z |
dc.date.issued | 2020-09 |
dc.identifier.citation | Marti, J.; Ryzhakov, P. Improving accuracy of the moving grid particle finite element method via a scheme based on Strang splitting. "Computer methods in applied mechanics and engineering", Setembre 2020, vol. 369, p. 113212:1-113212:17. |
dc.identifier.issn | 0045-7825 |
dc.identifier.other | https://www.researchgate.net/publication/342502843_Improving_accuracy_of_the_moving_grid_particle_finite_element_method_via_a_scheme_based_on_Strang_splitting |
dc.identifier.uri | http://hdl.handle.net/2117/330867 |
dc.description.abstract | Particle finite element method (PFEM) is a computational tool suitable for simulating fluid dynamics problems characterized by presence of moving boundaries. In this paper a new version of the method for incompressible flow problems is proposed aiming at accuracy improvement. This goal is achieved essentially by applying Strang operator splitting to Navier–Stokes equations and selecting adequate integration schemes for the resulting advective and Stokes sub-problems. For achieving efficient implementation, the pressure and the velocity in the Stokes part are decoupled via the fractional step technique as in the classical PFEM. However, at the first fractional step an explicit pressure prediction procedure for alleviating mass losses is introduced. Three test cases are solved, validating the methodology and estimating its accuracy. The numerical evidence proves that the proposed scheme improves the accuracy of the PFEM. |
dc.description.sponsorship | The authors acknowledges financial support from the Ministerio de Ciencia, Innovacion y Universidades of Spain via the “Severo Ochoa” Programme for Centres of Excellence in R&D (referece: CEX2018-000797-S) as well as via AMADEUS project grant (reference: PGC2018-101655-B-I00). |
dc.language.iso | eng |
dc.rights | 2019. Elsevier |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
dc.subject | Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits |
dc.subject | Àrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids |
dc.subject.lcsh | Navier-Stokes equations--Numerical solutions |
dc.subject.lcsh | Computational fluid dynamics |
dc.subject.other | Incompressible Navier–Stokes |
dc.subject.other | Free-surface flows |
dc.subject.other | PFEM |
dc.subject.other | Lagrangian |
dc.subject.other | Strang splitting |
dc.title | Improving accuracy of the moving grid particle finite element method via a scheme based on Strang splitting |
dc.type | Article |
dc.subject.lemac | Equacions de Navier-Stokes -- Mètodes numèrics |
dc.subject.lemac | Dinàmica de fluids computacional |
dc.contributor.group | Universitat Politècnica de Catalunya. RMEE - Grup de Resistència de Materials i Estructures en l'Enginyeria |
dc.identifier.doi | 10.1016/j.cma.2020.113212 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0045782520303972 |
dc.rights.access | Open Access |
local.identifier.drac | 29291655 |
dc.description.version | Postprint (author's final draft) |
dc.relation.projectid | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-101655-B-I00/ES/MODELOS AVANZADOS MULTIESCALA PARA LA SIMULACION DEL TRANSPORTE ACOPLADO DE MASA EN PILAS DE COMBUSTIBLE PARA UNA GESTION MAS EFICAZ DEL AGUA/ |
local.citation.author | Marti, J.; Ryzhakov, P. |
local.citation.publicationName | Computer methods in applied mechanics and engineering |
local.citation.volume | 369 |
local.citation.startingPage | 113212:1 |
local.citation.endingPage | 113212:17 |
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