Effects of discharge concentration and convective boundary conditions on unsteady hybrid nanofluid flow in a porous medium

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 58, P. 104374 - 104374

Published: April 8, 2024

This study explores using hybrid nanofluids to improve water quality by enhancing heat transfer and substance decomposition. Nanofluids effectively remove pollutants, optimise transfer, control pollution sources, regulate fluid dynamics, which can lead efficient management in systems. Thus, the present research examines flow of an unsteady Al2O3-Cu/water nanofluid near stagnation region a porous medium, considering discharge concentration convective boundary conditions. Governing equations ordinary differential are obtained similarity transformations. The BVP4C solver MATLAB is employed expose dual solutions. volume fraction copper suction/injection parameter unsteadiness collectively contribute delay layer separation. Increasing values , enhances transfer. When sheet shrunk between range has higher thermal than nanofluid. Moreover, increment raises skin friction coefficients mass diffusion rates. Stability analysis reveals that first solution stable while second one unstable.

Language: Английский

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Triple diffusion and three-dimensional mixed convection of Sutterby nanofluids over a stretching Riga plate with Cattaneo–Christov heat flux: prediction using artificial neural networks

Multiscale and Multidisciplinary Modeling Experiments and Design, Journal Year: 2025, Volume and Issue: 8(3)

Published: Feb. 10, 2025

Language: Английский

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Fourth-grade nanofluid model with dissipative and nonlinear radiative properties transported peristaltically via a flexible diverging duct holding a porous media under the influence of concentration and heat convection in an induced magnetic field

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 27

Published: March 11, 2024

The major goal of this work is to give a thorough examination the effect double diffusion convection (DDC) in addition generated magnetic field on peristaltic movement fourth-grade nanofluid across vertical sophisticated asymmetrical microchannel using nondeformable porous media as basis for intricate pumping systems inspired by biological processes hazardous waste. mathematical formulas pertaining flow, heat/mass transfer under influence viscous dissipation, nonlinear heat radiation, and Joule heating were developed Buongiorno's framework nanofluids with combining thermophoresis Brownian motion characteristics. Mathematical analysis has been conducted suppositions an extended wavelength relatively small Reynolds number. Magnetic induced axially, density current, force function, thermal characteristics, nanoparticles proportion gradient, additional stress tensor, pressure stream function are all given explicit formulas. constructed (ND Solve function) within Wolfram software (Mathematica) employed computationally resolve ensuing system coupled differential equations. Numerical pictorial evidence presented highlight significance different physiological characteristics flow volumes. Further, contour visualizations circulation bolus have used trapping phenomena, one among most noteworthy occurrences. main results showed that, despite dissolvent concentration volume percentage having opposite effects, resistance substance shown climb Soret Dufour numbers rise. At larger levels electromagnetic number, Strommer's electric parameter, Grashof stronger axial fields (IMFs) also provided.

Language: Английский

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Peristaltic transport of nanofluid with temperature dependent thermal conductivity: A numerical study

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 14

Published: Feb. 20, 2024

Language: Английский

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Waste discharge concentration and quadratic thermal radiation influences on time-dependent nanofluid flow over a porous rotating sphere

Numerical Heat Transfer Part B Fundamentals, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 19

Published: April 8, 2024

The nature of waste discharge concentration on time-dependent nanofluid flowing over a rotating sphere is examined in the conducted research. linear and quadratic radiation influences are considered energy transport equation. flow generation occurs due to sphere's revolution with angular velocity. term external pollutant modeled Titanium dioxide (TiO2) nanoparticles inserted into base-liquid water (H2O). Similar variables reported for conversion problem. converted problem computed through Runge–Kutta–Fehlberg (RKF) scheme. study outcomes obtained from numerical scheme presented help graphs. rise thermal factors will enhance profile. Improvement local source parameters improve mass transfer rate by adding solid volume fraction escalated values constraints.

Language: Английский

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Rheological properties of water-based Fe3O4 and Ag nanofluids between boundary layers due to shear flow over a still fluid

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 398, P. 124259 - 124259

Published: Feb. 16, 2024

Language: Английский

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Numerical investigation of magnetohydrodynamic bioconvection peristalsis of Powell–Eyring nanofluid

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 22

Published: March 1, 2024

The present study focuses on the numerical investigation of magnetohydrodynamic (MHD) peristaltic movement Powell- Eyring nanofluid, including traveling gyrotactic microorganisms. examination nanofluid flow under impacts an applied magnetic field, heat generation, viscous dissipation, and Ohmic heating is a notable aspect this research. Heat mass transfer for MHD Powell-Eyring with Brownian motion thermophoresis effects explored theoretically. Mathematical modeling facilitated by lubrication theory resulting system numerically solved using NDSolve in Mathematica based shooting algorithm. Effects parameters temperature profile, velocity, microorganisms, mass, thermal rates are studied explained through tables graphs. Results show that distribution significantly increased due to enhancement Hartmann number, Brinkmann parameter, generation parameter. Tabular interpretations provided variations different quantities.

Language: Английский

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Non-Fourier heat flux and Joule dissipation in hybrid nanoparticles suspension with Williamson fluid

The European Physical Journal Plus, Journal Year: 2024, Volume and Issue: 139(4)

Published: April 3, 2024

Language: Английский

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Numerical assessment of viscoelastic tetra hybrid nanofluid flow across a stretchable rotatory disk under the Soret and Dufour aspects

Multidiscipline Modeling in Materials and Structures, Journal Year: 2024, Volume and Issue: 20(4), P. 688 - 706

Published: June 4, 2024

Purpose Fluid flows through rotatory disks are encountered in industrial and practical engineering processes, such as computer storage devices, gas turbine rotators, rotating machinery, air cleaning machines, etc. The primary purpose of this research is to examine the combined aspects variable electrical conductivity, thermal radiation, Soret Dufour effects on a magnetohydrodynamic Maxwell single-walled carbon nanotubes–graphene oxide–multi-walled nanotubes–copper (SWCNT–GO–MWCNT–Cu)/sodium alginate tetra-hybrid nanofluid flow stretchable disk. Design/methodology/approach modeled administrative equations present problem converted non-dimensional system ordinary differential by applying suitable similarity conversion then solved numerically implementing bvp4c method. impressions noteworthy dimensionless parameters velocity, temperature, concentration distributions, Nusselt number, skin friction Sherwood number reported via graphs tables. Findings authors figured out that developed values rotation parameter diminish temperature but enhance both radial angular velocities. Further, mass heat transmission rates better for nanofluids than ternary hybrid nanofluids. Originality/value study emphasizes special type fluid called nanofluid. existing literature has not discussed tetra disk with conductivity. Besides, novel magnetohydrodynamics, also incorporated into problem.

Language: Английский

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Optimising heat transfer efficiency in unsteady Maxwell hybrid nanofluid flow for solar energy

International Journal of Sustainable Energy, Journal Year: 2025, Volume and Issue: 44(1)

Published: Feb. 21, 2025

Language: Английский

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