Numerical simulation of the motion of a Taylor drop in a non-Newtonian fluid

Usefi, Elham; Bayareh, Morteza

doi:10.1007/s42452-020-2978-7

Cited by 3 publications

(2 citation statements)

References 25 publications

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“…Similar to the E-E method, the volume fraction of each fluid in each computational cell is captured in the computational domain. The same as the E-E method, α = 0 when the computational cell is occupied by the dispersed phase, α = 1 when the computational cell is occupied by the continuous phase, and 0 < α < 1 when the cell involves the interface between the two dispersed and continuous phases [18][19][20][21]. For instance, Hassanzadeh et al [19] employed the VOF to simulate the head-on collision of two drops falling in a vertical channel (Fig.…”

Section: Volume Of Fluid Methodsmentioning

confidence: 99%

An Overview of Multi-Phase Flow Numerical Methods

2023

International Conference on Innovative Academic Studies

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Numerical simulation of multi-phase flows is complicated and time-intensive. Many investigators have utilized different numerical approaches to describe multi-phase flows in various practical problems, including sprays, cyclones, stratification, etc. This review paper introduces four numerical schemes, including Eulerian-Lagrangian (E-L), Eulerian-Eulerian (E-E), Volume of Fluid (VOF), and front tracking (FT), employed to simulate multi-phase flows. Some advances in the field are introduced and some main characteristics are compared. It is demonstrated that the selection of an appropriate approach depends on the major hydrodynamic properties of the problem.

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Section: Volume Of Fluid Methodsmentioning

confidence: 99%

An Overview of Multi-Phase Flow Numerical Methods

2023

International Conference on Innovative Academic Studies

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“…A limited number of studies are available in the literature on liquid–liquid slug flows, with any one of the phases being non-Newtonian. Usefi and Bayareh performed a numerical investigation on the motion of a Taylor drop in a non-Newtonian continuous phase considering a glycerol–water solution. The results have shown that an increase in power law index ( n ) has increased the terminal velocity of the drop due to the decrease in the effect of viscous forces.…”

Section: Introductionmentioning

confidence: 99%

Dynamics of a Rising Taylor Drop in a Stagnant Shear-Thinning Liquid

Vengadesan

2023

Ind. Eng. Chem. Res.

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This study investigates the dynamics of a Taylor drop rising under the influence of non-Newtonian behavior of the continuous phase. Numerical analysis of a Taylor drop rising in a vertical pipe with stagnant shear-thinning liquid is performed using the volume of fluid (VoF) based interFoam solver in OpenFOAM. Silicone oils and sodium carboxymethyl cellulose (CMC) solutions are used as dispersed and continuous phases, respectively. Nondimensional numbers are used to study the effect of shear-thinning behavior, pipe diameter, and dispersed phase viscosity on the terminal velocity and drop shape. The shear-thinning behavior of the continuous phase greatly influences both the terminal velocity and the shape of the drop. The Froude number correlation in the literature is extended for a Taylor drop rising in non-Newtonian liquid, with prediction errors within ±15%. Furthermore, the influence of a Taylor drop on wall shear stress for different CMC concentrations is reported.

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