Viscoelastic flow analysis using the software OpenFOAM and differential constitutive equations

Faveroa, Jovani L. and Cardozoa, Nilo S.M. and Secchib, Argimiro R. and Jasak, Hrvoje (2010) Viscoelastic flow analysis using the software OpenFOAM and differential constitutive equations. = Viscoelastic flow analysis using the software OpenFOAM and differential constitutive equations. Journal of non-newtonian fluid mechanics, 165 (23/24). pp. 1625-1636. ISSN 0377-0257. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2010). Točan broj autora: 4.

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Abstract

Viscoelastic fluids are of great importance in many industrial sectors, such as in food and synthetic polymers industries. The rheological response of viscoelastic fluids is quite complex, including combination of viscous and elastic effects and non-linear phenomena. This work presents a numerical methodology based on the split-stress tensor approach and the concept of equilibrium stress tensor to treat high Weissenberg number problems using any differential constitutive equations. The proposed methodology was implemented in a new computational fluid dynamics (CFD) tool and consists of a viscoelastic fluid module included in the OpenFOAM, a flexible open source CFD package. Oldroyd-B/UCM, Giesekus, Phan-Thien–Tanner (PTT), Finitely Extensible Nonlinear Elastic (FENE-P and FENE-CR), and Pom–Pom based constitutive equations were implemented, in single and multimode forms. The proposed methodology was evaluated by comparing its predictions with experimental and numerical data from the literature for the analysis of a planar 4:1 contraction flow, showing to be stable and efficient.

Item Type:	Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian):	viscoelastic flow; planar contraction; fluid mechanics; ViscoelasticFluidFoam; OpenFOAM
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery
Indexed in Web of Science:	Yes
Indexed in Current Contents:	Yes
Quartiles:	Q1 (2010)
Date Deposited:	24 Jun 2015 09:13
Last Modified:	30 Mar 2017 15:40
URI:	http://repozitorij.fsb.hr/id/eprint/4375

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