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dc.contributor.authorGimenez, Juan M.
dc.contributor.authorNigro, Norberto
dc.contributor.authorIdelsohn Barg, Sergio Rodolfo
dc.contributor.authorOñate Ibáñez de Navarra, Eugenio
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2017-01-11T14:08:01Z
dc.date.available2019-01-01T01:30:29Z
dc.date.issued2016-12
dc.identifier.citationGimenez, J.M., Nigro, N., Idelsohn, S.R., Oñate, E. Surface tension problems solved with the particle finite element method using large time-steps. "Computers and fluids", Desembre 2016, vol. 141, p. 90-104.
dc.identifier.issn0045-7930
dc.identifier.urihttp://hdl.handle.net/2117/99033
dc.description.abstractIn previous works [S. R. Idelsohn, J. Marti, P. Becker, E. Oñate, Analysis of multifluid flows with large time steps using the particle finite element method, International Journal for Numerical Methods in Fluids 75 (9) (2014) 621–644. doi:10.1002/fld.3908. URL http://dx.doi.org/10.1002/fld.3908, Juan M. Gimenez and Leo M. González, An extended validation of the last generation of particle finite element method for free surface flows, J Comput Phys 284 (0) (2015) 186–205. doi:http://dx.doi.org/10.1016/j.jcp.2014.12.025. URL http://www.sciencedirect.com/science/article/pii/S0021999114008420 ], the authors have presented a highly efficient extension of the Particle Finite Element Method, called PFEM-2, to solve two-phase flows. The methodology which uses X-IVS [S. Idelsohn, N. Nigro, A. Limache, E. Oñate, Large time-step explicit integration method for solving problems with dominant convection, Comp Methods in Appl Mech Eng 217–220 (2012) 168–185.] to treat convection terms allowing large time-steps was validated for problems where the gravity forces and/or the inertial forces dominate the flow. Although that is the target range of problems to solve with PFEM-2, most of real problems that fall in these categories also includes other flow regimes in certain regions of the domain. Maybe the most common secondary regime is when the surface tension dominates, as an example when drops or bubbles are released from the main flow, and this feature must be taken into account in any complete numerical strategy. Attending to that, in this work the treatment of the surface tension to PFEM-2 is included. An implicit CSF methodology is employed together with a coupling between the marker function with a Level Set function to obtain a smooth representation of the normal of the interface which allows an accurate curvature calculation. Examples for curvature calculation and isolated bubbles and drops are presented where the accuracy and the computational efficiency are analyzed and contrasted with other numerical methodologies. Finally, a simulation of a jet atomization is analyzed. This case presents the above mentioned features: it is a inertia-dominant flow with a surface tension phenomena on drops and ligaments break up that can not be neglected.
dc.format.extent15 p.
dc.language.isoeng
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshSurface tension
dc.subject.otherPFEM
dc.subject.otherSurface tension
dc.subject.otherTwo-phase flows
dc.subject.otherSCLSVOF
dc.titleSurface tension problems solved with the particle finite element method using large time-steps
dc.typeArticle
dc.subject.lemacTensió superficial
dc.contributor.groupUniversitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria
dc.identifier.doi10.1016/j.compfluid.2016.04.026
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0045793016301165?np=y
dc.rights.accessOpen Access
local.identifier.drac19507722
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/664910/EU/ASSESSMENT AND INITIAL STEPS FOR THE EXPLOITATION OF A FAST SIMULATION SOFTWARE FOR CASTING MANUFACTURING OPERATIONS/FORECAST
local.citation.authorGimenez, J.M.; Nigro, N.; Idelsohn, S.R.; Oñate, E.
local.citation.publicationNameComputers and fluids
local.citation.volume141
local.citation.startingPage90
local.citation.endingPage104


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