Three-dimensional transient complex free surface flows: Numerical simulation of XPP fluid
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/05/2013
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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. |
Formato |
88-98 |
Identificador |
http://dx.doi.org/10.1016/j.jnnfm.2013.01.004 Journal of Non-Newtonian Fluid Mechanics, v. 195, p. 88-98. 0377-0257 http://hdl.handle.net/11449/75225 10.1016/j.jnnfm.2013.01.004 WOS:000318323200009 2-s2.0-84875243673 |
Idioma(s) |
eng |
Relação |
Journal of Non-Newtonian Fluid Mechanics |
Direitos |
closedAccess |
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 |
Tipo |
info:eu-repo/semantics/article |