A comparative study of three dimensional flow of Casson–Williamson nanofluids past a riga plate: Spectral quasi-linearization approach

Akolade, Mojeed T.; Tijani, Yusuf O.

doi:10.1016/j.padiff.2021.100108

Cited by 53 publications

(16 citation statements)

References 43 publications

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“…Under the above assumptions, the usual Boussinesq's approximation, the governing equations (continuity, momentum, energy, concentration) accordingly (see Akolade and colleagues 10,17,[44][45][46] ).…”

Section: Model Formulation Analysismentioning

confidence: 99%

“…Sharada and Shankar 8 examined joule heating, partial slip, and convective boundaries conditions on the magnetohydrodynamic (MHD) flow of Williamson fluid. Recently, Raju et al 9 and Akolade and Tijani 10 highlighted graphically the viscosity variation between Casson and Williamson fluid.…”

Section: Introductionmentioning

confidence: 99%

“…Conventionally, an external magnetic field can dominate the flow of largely electrically conducting fluids, but in weakly electrical conducting fluids, the applied magnetic field induces very little current. 10 To demonstrate this theory, Kumar et al 11 presented a chemical reactive and nonlinear radiative flow of non-Newtonian nanofluid over an elongating Riga surface. Loganathan and Deppa 12 discuss the impact of thermal radiation over a melting surface conveying non-Newtonian fluid.…”

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confidence: 99%

“…This study interest has applications in hot rolling, food processing, and wire drawing to mention a few. 15 In this regard, Akolade et al 10,[26][27][28][29] examined the Casson fluid motion with variable thermophysical properties in different flow geometry. Akinbobola and Okoya, 30 Fatunmbi and Fenuga 31 presented the variable thermophysical analysis in second grade and micropolar fluid, respectively, for which both the Newtonian and non-newtonian hydromagnetic fluids have a direct or reverse relation between viscosity and temperature.…”

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confidence: 99%

“…However, the result portrays the same effect for the two instances of the heat models (sink and source). 10,12,17,18,44,45 were assumed constant throughout the flow examination else otherwise stated. At this juncture, it is mentionable that Q > 0 and Q < 0 correspond to heat source and sink, respectively.…”

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Thermophoretic movement, heat source, and sink influence on the Williamson fluid past a Riga surface with positive and negative Soret‐Dufour mechanism

et al. 2022

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This study investigates the boundary layer motion of Williamson fluid over an electromagnetic with thermophoretic movement, variable thermal conductivity and viscosity, nonlinear radiation, and ± $\pm $Soret‐Dufour influences. The real prediction of regional movement and temperature‐dependent properties of the non‐Newtonian fluids in real space (three‐dimensional [3D]) becomes imperative due to their numerous industrial, engineering, and biomedical use. This flow motion is induced as a result of the introduced mechanism (Riga plate) capable of controlling a weakly hydromagnetic flow. To actualize the aim of this study, the formulated governing partial differential equations conveying the flow model of Williamson fluid in a 3D sense are transformed to systems of ordinary differential equations (ODEs) via applicable similarity variables. The reduced systems of ODEs are solved numerically by the collocation approach. Therein, the Riga surface is seen preventing the heat source/sink impact on the flow fields, the thermophoretic impact indicates a more accumulation of Williamson fluid particles in the cold region thus resulting in higher fluid concentration. Thermal variability energizes the energy field positively, momentum boundary layer reduction prevails for higher Williamson number while heat source dominates the temperature field and heat sink showcases its ability to enhance the fluid concentration in contrast to the heat source.

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Section: Model Formulation Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Thermophoretic movement, heat source, and sink influence on the Williamson fluid past a Riga surface with positive and negative Soret‐Dufour mechanism

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Dynamics of Viscous Jeffrey Fluid Flow Through Darcian Medium With Hall Current and Quadratic Buoyancy

Akolade,

Agunbiade,

Oyekunle

et al. 2024

Electrophoresis

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This contribution builds on existing studies by investigating the dynamics of Hall current in Jeffery fluid under radiative heat, convective boundary conditions, Joule heating, and Darcy dissipation. Hall current, an important phenomenon in engineering applications involving strong magnetic fields, highlights the impact of electromagnetic force in examining blood flow rate, determining charge drift velocity, density, and movement, and is used in power generators and high‐voltage transformers. This analysis incorporates dissipative and thermal radiative heat and employs the effects of Hall current and Joule heating, resulting from porous medium resistance, to derive the partial differential equations governing the dynamic systems. These equations are then reduced to ordinary differential equations (ODEs) through similarity variables. The Galerkin weighted residual method (GWRM) is employed to examine the dynamics of Hall current and quadratic thermal buoyancy, shedding light on the thermal properties and hydrodynamics of Jeffrey fluid convection within a porous medium. The analysis reveals that in the presence of an applied magnetic field, the contribution of Hall current to flow and heat dynamics induces a magnetic force that enhances fluid motion and negatively impacts heat energy patterns. The imposition of dissipative heat physically increases the fluid temperature, owing to an increase in buoyancy current. The occurrence of thermal radiation, Hall current, viscous dissipation, and Joule heating can efficiently optimize the rate of heat transfer and shear stress. Moreover, the tabular results indicate that Jeffrey fluid, exhibiting higher relaxation time, will experience a lower friction coefficient and heat transfer rate.

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Nonsimilar solution of a boundary layer flow of a Reiner–Philippoff fluid with nonlinear thermal convection

et al. 2022

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The thermodynamics modeling of a Reiner-Philippofftype fluid is essential because it is a complex fluid with three distinct probable modifications. This fluid model can be modified to describe a shear-thinning, Newtonian, or shear-thickening fluid under varied viscoelastic conditions. This study constructs a mathematical model that describes a boundary layer flow of a Reiner-Philippoff fluid with nonlinear radiative heat flux and temperature-and concentration-induced buoyancy force. The dynamical model follows the usual conservation laws and is reduced through a nonsimilar group of transformations. The resulting equations are solved using a spectral-based local linearization method, and the accuracy of the numerical results is validated through the grid dependence and convergence tests. Detailed analyses of the effects of specific thermophysical parameters are presented through tables and graphs. The study reveals, among other results, that the buoyancy force, solute and thermal expansion coefficients, and thermal radiation increase the overall wall drag, heat, and mass fluxes.Furthermore, the study shows that amplifying the

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A comparative study of three dimensional flow of Casson–Williamson nanofluids past a riga plate: Spectral quasi-linearization approach

Cited by 53 publications

References 43 publications

Thermophoretic movement, heat source, and sink influence on the Williamson fluid past a Riga surface with positive and negative Soret‐Dufour mechanism

Thermophoretic movement, heat source, and sink influence on the Williamson fluid past a Riga surface with positive and negative Soret‐Dufour mechanism

Dynamics of Viscous Jeffrey Fluid Flow Through Darcian Medium With Hall Current and Quadratic Buoyancy

Nonsimilar solution of a boundary layer flow of a Reiner–Philippoff fluid with nonlinear thermal convection

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