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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Three-dimensional transient complex free surface flows: Numerical simulation of XPP fluid

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Author(s):
Figueiredo, R. A. [1] ; Oishi, C. M. [2] ; Cuminato, J. A. [1] ; Alves, M. A. [3]
Total Authors: 4
Affiliation:
[1] Univ Sao Paulo, Dept Matemat Aplicada & Estat, Sao Carlos, SP - Brazil
[2] Univ Estadual Paulista, Dept Matemat & Comp, Presidente Prudente - Brazil
[3] Univ Porto, CEFT, Dept Engn Quim, Fac Engn, P-4100 Oporto - Portugal
Total Affiliations: 3
Document type: Journal article
Source: Journal of Non-Newtonian Fluid Mechanics; v. 195, p. 88-98, MAY 2013.
Web of Science Citations: 11
Abstract

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. (C) 2013 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 11/09194-7 - Numerical simulation of the Weissenberg effect
Grantee:Rafael Alves Figueiredo
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 09/15892-9 - Study of stable and accurate numerical methods for transient flows: improvements, implementations, free surface flow problems and viscoelastic models
Grantee:Cassio Machiaveli Oishi
Support type: Research Grants - Young Investigators Grants