Mathematical modeling of entropy generation in MHD mixed convective Cu – Ag -Al ₂ O ₃ /H ₂ O tri-hybrid nanofluid over an exponential permeable shrinking surface with radiation and slip impacts: Multiple solutions with stability analysis

Numerical Heat Transfer Part B Fundamentals, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 29

Published: May 10, 2024

The present investigation aims to determine the existence of a dual solution in magnetohydrodynamic (MHD) mixed convective radiative flow Cu-Ag-Al2O3/H2O tri-hybrid nanofluid permeable Darcy–Forchheimer porous medium over an exponentially shrinking surface by considering velocity, thermal slips, and suction effects at surface. This study focuses on assessing entropy production novel coolant applications. To streamline analysis, complex nonlinear partial differential equations (PDEs) are simplified converting them into set ordinary (ODEs) through utilization similarity transformation technique. These ODEs then solved utilizing bvp4c numerical MATLAB function. Graphical tabular analyses conducted investigate impact emerging variables generation, as well temperature, skin friction coefficient, Nusselt number. Due contraction surface, solutions found, but cannot be found beyond critical values. values SC 1.58928, 1.48700, 1.66058, ξC −1.239499, −1.416999, −1.130030 for Cu/H2O nanofluid, Cu−Ag/H2O hybrid Cu−Ag−Al2O3/H2O respectively. A positive minimum eigenvalue γ1 signifies upper stable branch, while negative minimal indicates presence lower unstable branch. exhibits superior properties compared fluids. Adding nanoparticles traditional fluids is perceived improving their ability transmit heat. analysis has demonstrated that radiation temperature slip parameters significantly influence heat transfer rate. Thermal speed up creation entropy. Additionally, case solution, increase Forchheimer number results deceleration liquid flow, effect which further amplified magnetic field velocity parameter.

Language: Английский

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Free Convection in a Square Ternary Hybrid Nanoliquid Chamber with Linearly Heating Adjacent Walls

Nanomaterials, Journal Year: 2023, Volume and Issue: 13(21), P. 2860 - 2860

Published: Oct. 28, 2023

In this study, mathematical modeling of the energy transfer and flow characteristics ternary nanoliquid in a square enclosure is performed. cavity considered, left bottom borders are warmed uniformly or non-uniformly when rest cooled. The robust finite element method with quads triangles as elements used to work out control equations problem. current study validated against previously published works, good agreement shown. isolines investigated for various Rayleigh numbers at uniform non-uniform thermal boundary conditions. impact hybrid nanofluids on mean Nusselt number hot explored dependence nanoparticle concentration. A comparative different fluids heated also conducted analyzed appropriate graphs tables. It has been shown that can be more effective compared mono- nanofluids, essential growth transport rate nanoadditives

Language: Английский

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Implications of slippage constraint and aligned Lorentz force on the ternary hybrid nanofluid flow over an exponentially deformable surface

Multiscale and Multidisciplinary Modeling Experiments and Design, Journal Year: 2025, Volume and Issue: 8(6)

Published: April 15, 2025

Language: Английский

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Thermal analysis of trihybrid (Co+ZrO₂+Au /H₂O) nanofluid flow through the exponentially deformable surface with Lorentz force and Navier’s slippage constraint

International Journal of Numerical Methods for Heat &amp Fluid Flow, Journal Year: 2025, Volume and Issue: unknown

Published: May 5, 2025

Purpose This paper aims to examine the inferences of Lorentz force, heat absorption, viscous dissipation, and porous medium on thermal behavior optically thick radiative trihybrid nanofluid (THNF) flow through exponentially deformable surface with Navier’s slippage constraint. Design/methodology/approach The homogenous nanoparticles cobalt (Co), zirconium dioxide (ZrO 2 ) gold (Au) are combined water (H O) prepare THNF. formulation mathematical model is grounded in fundamental principles mass, momentum energy conservation rules. numerical solution regressive partial differential equations analyzed using Lobatto-IIIa-bvp4c-algorithm, which based finite difference method. In addition, statistical regression models introduced investigate correlation between skin friction transmission rate relation distinctive parameters. streamlines generated for various parameter values characterize behavior. Findings Graphical representations depict influence critical parameters velocity profiles, hybrid fluid temperature, shear stress transfer rate. computational results indicate that slippage, media absorption boost efficiency. Nonlinear analysis suggests that, compared more responsive variations factor. contrast, factor has a greater impact hybridized than dissipation impacts. Further, this observed 4.86109% increase when (V s varied from 0.0–0.50, whereas 6.38056% drop P 0.3–1.0 at fixed Originality/value study uses several unexamined factors, including media, suction radiation, within context constraints.

Language: Английский

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Computational analysis for thermal radiation and heat Source–Sink on ternary hybrid nanofluid flow with Cattaneo–Christov heat flux over a stretching surface

Journal of Radiation Research and Applied Sciences, Journal Year: 2025, Volume and Issue: 18(3), P. 101565 - 101565

Published: May 6, 2025

Language: Английский

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Predicting simulations of entropy generation with multiple nanoscales towards cylinder/surface engaging non-Fourier law: Energy systems and power generation

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 105428 - 105428

Published: May 1, 2025

Language: Английский

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Influence of couple stress, radiation, and activation energy on MHD flow and entropy generation in Maxwell hybrid nanofluid flow over a flat plate

Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 14, 2024

Countless engineering applications rely on heat and mass transportation technologies. Limitations in thermal conductivity diffusivity are common conventional fluids. Nanofluids, which essentially base fluids with nanoparticles suspended them, have superior characteristics than without the nanoparticles. Maxwell hybrid nanofluids potential to improve transport even further by combining of two different types The magnetohydrodynamic (MHD) flow transmission properties a nanofluid through flat plate investigated this work. novelty research lies its exploration combined impressions couple stress activation energy behaviour. equations governing problem undergo transformation handled means bvp4c solver. vital discoveries disclose that nanoparticle concentration magnetic field strength act as opposing forces fluid velocity. And also, it is detected friction coefficient rises 2.68% value volume fraction copper ranges from 0 0.105. It found there decrement 29.7% rate when values Eckert number lie between 0.6. observed reaction parameters play opposite roles against concentration. discovered entropy generation increases factors enhance dissipation (Maxwell Brinkman parameters). results show Sherwood drops 4.4% parameter set 3.

Language: Английский

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Role of particle shape considering three-dimensional flow of water-based ternary hybrid nanofluids for the interaction of magnetic field

Modern Physics Letters B, Journal Year: 2023, Volume and Issue: 37(36)

Published: July 29, 2023

In developing current flow phenomena, the proposed study is carried out by consideration of ternary hybrid nanofluid past a stretching surface. The became electrically conducting due to inclusion transverse magnetic field along normal direction flow. Further, energy profile enhanced for interaction radiative heat using Rosseland approximation. innovation behind this approach assumption various shapes particles, i.e. spherical, cylindrical with platelet-shaped nanoparticles and corresponding physical properties are demonstrated. view carbon nanotube, graphene, aluminum oxide water as base liquid used prepare nanofluid. Because complexity formulated model, governing non-dimensional set equations handled traditional numerical technique following shooting-based “Runge–Kutta fourth-order” technique. significant role pertinent factors involved in phenomena case overshoots fluid velocity comparison shear rate enhances increasing magnetization whereas transfer attenuates significantly.

Language: Английский

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Thermodynamic analysis of EMHD ternary nanofluid flow with shape factor effects over a shrinking sheet: A non-Fourier heat flux model

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 24

Published: Feb. 13, 2024

The investigation of the flow characteristics ternary hybrid nanofluids through a contracting sheet has considerable importance due to its potential for achieving exceptionally high rates heat transfer. nanofluid then absorbs from surface and carries it away. objective this study is analyze influence couple stress activation energy parameters on (H2O+MWCNT+ZnO+Al2O3) with electric forces convective boundary conditions. flux model created by Cattaneo Christov utilized examine mechanism transmission. equations necessary depict problem have been transformed into system, which subsequently resolved using bvp4c solver (MATLAB built-in function). It found that there rise in Bejan number increase parameter. An volume percentage multi-walled carbon nanotubes (ϕMW) observed result an augmentation entropy generation . fall friction factor when parameter rises at 0≤Ed≤0.6, (electric field parameter), seen rate 0.638797 (Platelet) (0.638784). A positive correlation between thermal relaxation (ϒ) fluid temperature, indicating former leads latter. discovered that, 0≤ϒ≤0.3, Nusselt 0.022587 0.022275 (Cylinder). There negative upsurge (Eg) corresponding Sherwood number. At 0≤Eg≤3, decline 0.0321 0.03208

Language: Английский

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Cattaneo‐Christov model for cross nanofluid with Soret and Dufour effects under endothermic/exothermic reactions: a modified Buongiorno tetra‐hybrid nanofluid approach

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 14, 2024

Abstract The previous researchers used a slightly different version of the Buongiorno hybrid nanofluid (BHNF) concept. In existing research, there is not single effort that was undertaken to explore effect tetra nanoparticles (tethnf) implanted with BHNF model have on liquid movement then exposed an elastic sheet. This endeavor focuses researching implication modified cross concept magnetized radiative transport, along impacts such as Cattaneo–Christov heat flux and mass flux, variable thermal conductivity, diffusion‐thermo thermo‐diffusion effects, endothermic/exothermic type chain reactions. approach integrates both tethnf. By inserting similar variables, controlling partial differential equations been transformed into dimensionless Ordinary equations. These are treated computationally help Lobatto III A technique. MATLAB computer program produce simulation solutions, well findings, which displayed in form graphs tables. Based results gathered, it discovered speed delivery increases when increase endothermic reaction. When Dufour relaxation factors increased, at transmitted also increases. fluid viscosity becomes more pronounced result index n , Weissenberg number We magnetic field M all contribute reduction velocity distribution. progressive change radiation parameters Rd effect, conductivity magnifies Nusselt causes rate, turn amplifies number.

Language: Английский

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