Numerical investigation of three dimensional viscoelastic free surface flows: Impacting drop problem

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dc.contributor.authorFigueiredo, Rafael A.
dc.contributor.authorOishi, Cassio M. [UNESP]
dc.contributor.authorCuminato, José A.
dc.contributor.authorAzevedo, José C.
dc.contributor.authorAfonso, Alexandre M.
dc.contributor.authorAlves, Manuel A.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T16:38:17Z
dc.date.available2018-12-11T16:38:17Z
dc.date.issued2014-01-01
dc.description.abstractThis work presents a numerical investigation of three dimensional viscoelastic free surface flows. In particular, using two different numerical methodologies, we have simulated a typical free-surface benchmark flow problem: the impact of a viscoelastic fluid droplet with a rigid boundary. The numerical method was recently proposed by Figueiredo et al. [1] and has been implemented in a in-house viscoelastic flow solver. In this methodology, a finite difference scheme is adopted combining the Marker-And-Cell (MAC) method with a Front-Tracking strategy. In order to preserve mass conservation properties for transient viscoelastic fluid flows, we have modified the methodology in [1] to include an improvement on the MAC discretization of the velocity boundary conditions at free-surfaces. The code is verified by solving the drop impact problem for a Newtonian fluid. After this verification, we employ the Oldroyd-B model to assess the differences between the methodologies, and compare our results with the ones in the literature. Finally, a detailed study of the influence of the relevant rheological parameters of the non-linear viscoelastic models (Giesekus and XPP) is reported, regarding the deformation and spreading of the viscoelastic fluid drop after impacting on a rigid surface.en
dc.description.affiliationDepartment of Mathematics and Computer Science, Instituto de Ciências Matemáticas e de Computação (ICMC), Universidade de São Paulo (USP)
dc.description.affiliationDepartment of Mathematics and Computer Science, Universidade Estadual Paulista (UNESP)
dc.description.affiliationDepartamento de Engenharia Química (CEFT), Faculdade de Engenharia, Universidade do Porto (FEUP)
dc.description.affiliationUnespDepartment of Mathematics and Computer Science, Universidade Estadual Paulista (UNESP)
dc.format.extent5368-5380
dc.identifier.citation11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014, p. 5368-5380.
dc.identifier.scopus2-s2.0-84924011921
dc.identifier.urihttp://hdl.handle.net/11449/167779
dc.language.isoeng
dc.relation.ispartof11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectFree surface flows
dc.subjectImpacting drop problem
dc.subjectNumerical simulation
dc.subjectViscoelastic models
dc.titleNumerical investigation of three dimensional viscoelastic free surface flows: Impacting drop problemen
dc.typeTrabalho apresentado em evento
unesp.author.lattes8671745801940831[2]
unesp.author.orcid0000-0002-0904-6561[2]

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