Heat transfer augmentation of Jeffery–Hamel hybrid nanofluid in a stretching convergent/divergent channel through porous medium

AIMS Mathematics, Год журнала: 2025, Номер 10(1), С. 388 - 402

Опубликована: Янв. 1, 2025

<p>The primary objective of the present study was to investigate enhancement heat transfer in a Jeffery–Hamel hybrid nanofluid through porous medium, within stretching/shrinking and convergent/divergent channels. The Darcy–Forchheimer (DF) law employed model flow thermal behavior nanofluid. governing system equations derived using appropriate transformations. Numerical computations were performed NDSolve method Mathematica-11. Results are presented numerical data graphical representations, illustrating effects various physical parameters on profiles. Key findings indicate that increasing inertia coefficient nanoparticle volume fraction accelerates velocity both divergent convergent Furthermore, higher porosity coefficients lead increased drag forces exerted by channel. nanofluids significantly enhanced fraction, coefficient, porosity, presence radiation source parameters, with notably rate observed case an expanding channel compared contracting one.</p>

Язык: Английский

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Heat Transfer Optimization using RSM for Hybrid Nanofluid Flow Impinging Obliquely on a Permeable Shrinking Sheet

Journal of Advanced Research in Numerical Heat Transfer, Год журнала: 2025, Номер 29(1), С. 1 - 15

Опубликована: Янв. 30, 2025

Fluid flow may strike a surface at an angle due to the physical limitations of nozzle or contouring surface. The heat transfer optimization for Al2O3-Cu/water hybrid nanofluid impinging obliquely on permeable shrinking sheet is analyzed in this study. Flow over occur during polymer and metal extraction, wire drawing, glass-fiber production. first step study involves reducing governing partial differential equations boundary conditions into non-linear ordinary via similarity transformation. Subsequently, these are solved using built-in finite difference code MATLAB bvp4c solver. It found that increment suction parameter enhances rate represented by quantity interest called local Nusselt number. However, opposite occurs when nanoparticle volume fraction Cu magnitude increase. Meanwhile, normal shear components skin friction augmented rise Cu. Then, statistical analysis done response methodology (RSM) revealed number highly impacted parameter, followed maximum value approximated be 13.30539 highest, while lowest.

Язык: Английский

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Heat transfer optimization for the unsteady mixed convection flow of hybrid nanofluid over a permeable EMHD riga plate with thermal radiation and convective boundary condition

Multiscale and Multidisciplinary Modeling Experiments and Design, Год журнала: 2025, Номер 8(3)

Опубликована: Фев. 19, 2025

Язык: Английский

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A numerical study on magneto-radiative hybrid nanofluid flow over an exponentially stretched surface with heat flux dissipation

Numerical Heat Transfer Part B Fundamentals, Год журнала: 2025, Номер unknown, С. 1 - 22

Опубликована: Март 12, 2025

Язык: Английский

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MHD hybrid nanofluid flow via varying porous space amid two stretchable rotating disks: A numerical approach

Proceedings of the Institution of Mechanical Engineers Part N Journal of Nanomaterials Nanoengineering and Nanosystems, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

This study investigates the thermal performance enhancement achievable through utilization of hybrid nanofluids (HNF) in variable porous media subjected to Magnetohydrodynamic (MHD) effects a Casson fluid with two stretchable rotating disks. In present study, titanium dioxide ( Ti O 2 ) and silver Ag nanoparticles are suspended water, which served as base fluid. The governing equations derived using similarity transformations solved numerically bvp4c method achieving convergence an accuracy tolerance 10 − 6 . explores influence porosity parameter, stretching parameters, Lorentz force, parameter Biot’s number on velocity, pressure, temperature distributions. findings reveal that axial velocity nanofluid increases lower disk while declines increase factor. also highlights radial variations depend significantly opposing trends observed between upper Enhanced profiles noted increasing Biot numbers, whereas magnetic suppress tangential velocity. Moreover, results enhance heat transfer rates compared traditional nanofluids, up 23% improvement for specific settings. work practical applicability management systems, such cooling technologies aerospace energy systems. high conductivity Ag-TiO 2 makes it well-suited microelectronic devices, where efficient dissipation is critical. properties advantageous solar collectors geothermal maximizing efficiency effective transport essential. model’s improved flow behaviors could contribute engine cooling, lubricant fuel cell performance, especially under high-performance conditions automobile industries.

Язык: Английский

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Performance Evaluation of Metal Foams in an Asymmetrical Heated Channel

International Journal of Thermofluids, Год журнала: 2025, Номер unknown, С. 101216 - 101216

Опубликована: Апрель 1, 2025

Язык: Английский

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Analysis of the ternary hybrid nanofluid flow containing solid nanoparticles over a three-dimensional stretching surface using porous medium: homotopy analysis method

Multiscale and Multidisciplinary Modeling Experiments and Design, Год журнала: 2025, Номер 8(6)

Опубликована: Апрель 21, 2025

Язык: Английский

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Impact of chemical reaction on hybrid nanofluid (GO + MoS₂) flow over an exponentially stretching sheet with Soret and Dufour effects

Asia-Pacific Journal of Chemical Engineering, Год журнала: 2024, Номер 19(4)

Опубликована: Апрель 11, 2024

Abstract The Soret and Dufour effects play a crucial role in various fields such as geosciences, groundwater pollutant migration, chemical reactor operations, binary alloy solidification, isotope separation. This study focuses on examining the impact of mixed convective flow hybrid nanofluid through an exponentially stretching sheet with effects. is affected by factors like variable viscosity, radiation, viscous dissipation, activation energy. Instead no‐slip condition at boundary, velocity slip, thermal concentration slip are considered. physical problem modeled using boundary layer theory, patterns expressed partial differential equations (PDEs). These governing fluid transformed into non‐linearly coupled ordinary (ODEs) exponential similarity transformations. simplified ODEs resolved MATLAB bvp4c package. parameters velocity, temperature, illustrated figures. Additionally, drag force coefficient heat mass transfer rates calculated for presented graphically tabular form. It observed that compared to nanofluids, nanofluids increases up 21.05% solute buoyancy ( δ ). Also, rate can be increased .96% reaction σ m A comparison this work previously published research has been reported.

Язык: Английский

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Aspects of Dual Simulation for Modified Thermal Flux Advances in Non‐Newtonian Reiner–Philippoff Fluid Flow past a Shrinking Plate Embedded in a Porous Medium

Journal of Mathematics, Год журнала: 2024, Номер 2024(1)

Опубликована: Янв. 1, 2024

This study investigates the effects of non‐Newtonian Reiner–Philippoff fluids on porous media, particularly in context steady radiative mixed convection flow and heat transfer near a shrinking plate surface presence magnetohydrodynamics (MHD). The mathematical model is constructed using PDEs transformed into ODEs via similarity transformations, with numerical solutions obtained MATLAB’s bvp4c function. results demonstrate that boundary layer separation occurs slowest for dilatant fastest pseudoplastic fluids, Newtonian exhibiting moderate rates. Thermal radiation media porosity parameters are found to reduce by approximately 0.95% 0.02%, respectively, while accelerating separation. Conversely, magnetic suction increase about 0.08% 4.25%, enhancing both fluid velocity temperature. parameter indicates possibility dual solutions, opposing favoring this phenomenon more than assisting flow. time‐based stability analysis reveals first solution stable, whereas second unstable. These findings provide significant insights behavior control practical applications involving fields.

Язык: Английский

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Effect of Thermal Radiation and Variable Viscosity on Bioconvective and Thermal Stability of Non-Newtonian Nanofluids under Bidirectional Porous Oscillating Regime

Mathematics, Год журнала: 2023, Номер 11(7), С. 1600 - 1600

Опубликована: Март 26, 2023

The bioconvective flow of a Jeffrey fluid conveying tiny particles under the effect an oscillating stretched bidirectional surface is considered in this paper. effects thermal radiation and porous medium are also investigated. Cattaneo–Christov diffusion theories used to analyze heat mass transfer phenomena. activation energy included concentration equation. solved dimensionless equations system established, based on non-dimensional variables. analytical findings evaluated using homotopic analysis technique. convergence solutions ensured. results validated by already available published good concordance encountered. fundamental physical aspect parameters graphically evaluated. main reveal that velocity reduced increasing permeability medium. An increase temperature occurs when viscosity varied. obtained can be useful systems, production, devices, solar biofuels, fertilizers, etc.

Язык: Английский

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