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

• Type: Article in International Scientific Journal
• Date: 2013

Authors

R. A. Figueiredo (Author) Other; C. M. Oishi (Author) Other; J. A. Cuminato (Author) Other; M. A. Alves (Author) FEUP

Journal

Title: Journal of Non-Newtonian Fluid Mechanics

Vol. 195

Pages: 88-98

ISSN: 0377-0257

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 13 Citations

ISI Web of Science

Scopus - 15 Citations

INSPEC

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Associated Projects

EXTENSION - EXTENSION – Escoamento extensional de fluidos complexos em microcanais

Other information

Authenticus ID: P-005-15X

DOI: 10.1016/j.jnnfm.2013.01.004

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11