In multiphase flows, accurately modeling the interaction between the liquid phase of complex fluids and a porous medium of solid spheres poses a fundamental challenge. The dynamics of moderately dense non-colloidal suspensions constituted by static random arrays of mono-disperse spherical particles in non-linear viscoelastic fluids is studied numerically. This numerical study consists of about 9000 different systems, in which the volume fraction of the dispersed solid phase, the Reynolds number Re , the solvent viscosity ratio β , the Weissenberg number Wi , and the mobility parameter of the Giesekus model α were varied to understand the particle's interactions with the viscoelastic suspending fluid. We aim to investigate the relationship between the volume fraction of the dispersed solid phase and the non-linear rheology of shear-thinning viscoelastic fluids with the normalized average drag force . In addition, by assessing the flow patterns predicted numerically, we were able to provide a characterization of the velocity and stress fields as a function of the simulation parameters.
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November 2023
Research Article|
November 22 2023
Numerical simulations of suspensions of rigid spheres in shear-thinning viscoelastic fluids Available to Purchase
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O. Ayar
;
O. Ayar
(Data curation, Formal analysis, Investigation, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
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C. Fernandes
;
C. Fernandes
a)
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
2
Transport Phenomena Research Center (CEFT), Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
3
Centre of Mathematics (CMAT), University of Minho
, Campus of Gualtar, 4710-057 Braga, Portugal
a)Author to whom correspondence should be addressed: [email protected]
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L. L. Ferrás
;
L. L. Ferrás
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
3
Centre of Mathematics (CMAT), University of Minho
, Campus of Gualtar, 4710-057 Braga, Portugal
4
Department of Mechanical Engineering (Section of Mathematics), Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
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M. A. Alves
M. A. Alves
(Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing)
2
Transport Phenomena Research Center (CEFT), Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
5
Associate Laboratory in Chemical Engineering (ALiCE), Department of Chemical Engineering, Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
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O. Ayar
1
C. Fernandes
2,3,a)
L. L. Ferrás
3,4
M. A. Alves
2,5
1
Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
2
Transport Phenomena Research Center (CEFT), Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
3
Centre of Mathematics (CMAT), University of Minho
, Campus of Gualtar, 4710-057 Braga, Portugal
4
Department of Mechanical Engineering (Section of Mathematics), Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
5
Associate Laboratory in Chemical Engineering (ALiCE), Department of Chemical Engineering, Faculty of Engineering - University of Porto (FEUP)
, Rua Dr. Roberto Frias s/n, 4200-465 Porto, Portugal
a)Author to whom correspondence should be addressed: [email protected]
Physics of Fluids 35, 113327 (2023)
Article history
Received:
August 10 2023
Accepted:
October 22 2023
Citation
O. Ayar, C. Fernandes, L. L. Ferrás, M. A. Alves; Numerical simulations of suspensions of rigid spheres in shear-thinning viscoelastic fluids. Physics of Fluids 1 November 2023; 35 (11): 113327. https://doi.org/10.1063/5.0171761
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