Viscoelastic Flow Simulation: Development of a Methodology of Analysis Using the Software OpenFOAM and Differential Constitutive Equations (CROSBI ID 613902)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Favero, J.L. ; Secchi, A.R. ; Cardozo, N.S.M. ; Jasak, Hrvoje
engleski
Viscoelastic Flow Simulation: Development of a Methodology of Analysis Using the Software OpenFOAM and Differential Constitutive Equations
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 highly non- linear viscous and elastic phenomena. This work presents a new Computational Fluid Dynamics (CFD) tool for the simulation of viscoelastic fluid flows, which consists of a viscoelastic fluid module to be used with OpenFOAM CFD package. The main reasons for using OpenFOAM in the development of this tool are its characteristics with relation to flexibility to deal with complex geometries, unstructured and non orthogonal meshes, moving meshes, large variety of interpolation schemes and solvers for the linear discretized system, and the possibility of data processing parallelization. Several constitutive equations, such as Maxwell, UCM, Oldroyd-B, Giesekus, Phan-Thien- Tanner (PTT), Finitely Extensible Nonlinear Elastic (FENE-P and FENE-CR) and some derivations of Pom-Pom were implemented, in single and multimode form, and in this work the results are presented with the Giesekus model. The proposed methodology was validated by comparing its predictions with experimental and numerical data from the literature for the analysis of a planar 4:1 contraction flow.
viscoelastic flows; planar contraction; numerical simulation; OpenFOAM
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Podaci o prilogu
915-920.
2009.
objavljeno
Podaci o matičnoj publikaciji
Computer Aided Chemical Engineering, Part A, volume 27
Podaci o skupu
10th International Symposium on Process Systems Engineering
predavanje
16.08.2009-20.08.2009
Salvador, Brazil