dc.creator | Figueiredo, Rafael Alves | |
dc.creator | Oishi, Cassio Machiaveli | |
dc.creator | Cuminato, José Alberto | |
dc.creator | Azevedo, José Manuel Cruz | |
dc.creator | Afonso, Alexandre Miguel Prior | |
dc.creator | Alves, Manuel António Moreira | |
dc.date.accessioned | 2015-03-11T18:40:51Z | |
dc.date.accessioned | 2018-07-04T17:03:52Z | |
dc.date.available | 2015-03-11T18:40:51Z | |
dc.date.available | 2018-07-04T17:03:52Z | |
dc.date.created | 2015-03-11T18:40:51Z | |
dc.date.issued | 2014-07-20 | |
dc.identifier | World Congress on Computational Mechanics, 11; European Conference on Computational Mechanics, 5; European Conference on Computational Fluid Dynamics, 6, 2014, Barcelona. | |
dc.identifier | 9788494284472 | |
dc.identifier | http://www.producao.usp.br/handle/BDPI/48483 | |
dc.identifier | http://www.wccm-eccm-ecfd2014.org/frontal/Ebook.asp | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1644156 | |
dc.description.abstract | This 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. | |
dc.language | eng | |
dc.publisher | International Association for Computational Mechanics (IACM) | |
dc.publisher | European Community on Computational Methods in Applied Sciences (ECCOMAS) | |
dc.publisher | Barcelona | |
dc.relation | World Congress on Computational Mechanics, 11. | |
dc.rights | Copyright International Center for Numerical Methods in Engineering (CIMNE) | |
dc.rights | openAccess | |
dc.subject | Free surface flows | |
dc.subject | Viscoelastic models | |
dc.subject | Numerical simulation | |
dc.subject | Impacting drop problem | |
dc.title | Numerical investigation of three dimensional viscoelastic free surface flows: impacting drop problem | |
dc.type | Actas de congresos | |