Three-dimensional transient complex free surface flows: Numerical simulation of XPP fluid
Carregando...
Fonte externa
Fonte externa
Data
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Acesso restrito
Fonte externa
Fonte externa
Resumo
In this paper we present a finite difference MAC-type approach for solving three-dimensional viscoelastic incompressible free surface flows governed by the eXtended Pom-Pom (XPP) model, considering a wide range of parameters. The numerical formulation presented in this work is an extension to three-dimensions of our implicit technique [Journal of Non-Newtonian Fluid Mechanics 166 (2011) 165-179] for solving two-dimensional viscoelastic free surface flows. To enhance the stability of the numerical method, we employ a combination of the projection method with an implicit technique for treating the pressure on the free surfaces. The differential constitutive equation of the fluid is solved using a second-order Runge-Kutta scheme. The numerical technique is validated by performing a mesh refinement study on a pipe flow, and the numerical results presented include the simulation of two complex viscoelastic free surface flows: extrudate-swell problem and jet buckling phenomenon. © 2013 Elsevier B.V.
Descrição
Palavras-chave
Finite difference method, Free surface flows, Three dimensional, Viscoelastic flow, XPP model, Free-surface flow, Implicit techniques, Incompressible free surface flows, Non-Newtonian fluid mechanics, Numerical formulation, Numerical techniques, Viscoelastic flows, Crystallography, Fluid mechanics, Non Newtonian liquids, Numerical methods, Runge Kutta methods, Surfaces
Idioma
Inglês
Citação
Journal of Non-Newtonian Fluid Mechanics, v. 195, p. 88-98.
