Sensitivity Analysis on Natural Convective Trapezoidal Cavity Containing Hybrid Nanofluid with Magnetic Effect: Numerical and Statistical Approach

Heliyon, Journal Year: 2024, Volume and Issue: 11(1), P. e41508 - e41508

Published: Dec. 26, 2024

The numerical analysis examines the attributes of magnetohydrodynamic natural convection in a closed cavity including circular hollow. Because mono and hybrid nanofluids have many applications thermal engineering manufacturing, are utilized as substance within entire domain. investigation centers on closed, trapezoidal-shaped hollow with heated surface ring. inclined vertical walls treated cold exteriors, while others insulated. Another factor is taking magnetic field horizontally to cavity. contains nanofluid, an amalgamation SiO 2 Ag nanoparticles water. associated governing equations simulated via finite element method. Exploiting streamlines, isotherms, line graphs, results physically explained for range values Rayleigh number (103 ≤ Ra 106), nanoparticle volume fraction (0 ϕ 0.1), Hartmann Ha 100). RSM used display 2D 3D effects significant factors response function. A best-fitted correlation built up examine rate sensitivity. It found that incorporating intensifying directs actuation nanofluid. In event growing impact, reverse behaviors should be noted. water's ability transmit heat increases 11.29 % when Ag-SiO -H O nanofluid used. imposition (Ha = 25), transmission lessens 2.4 %. has positive sensitivity whereas shows inverse behavior. Lastly, study's findings might guide designing successful convective mechanical device.

Language: Английский

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Comparative analysis of buoyancy-driven hydromagnetic flow and heat transfer in a partially heated square enclosure using Cu-Fe₃O₄ and MoS₂-Fe₃O₄ nanofluids

International Journal of Numerical Methods for Heat &amp Fluid Flow, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Purpose This study aims to investigate entropy generation through natural convection and examine heat transfer properties within a partially heated cooled enclosure influenced by an angled magnetic field. The enclosure, subjected consistent production or absorption, contains porous medium saturated with hybrid nanofluid blend of Cu-Fe 3 O 4 MoS 2 -Fe . Design/methodology/approach temperature velocity equations are converted dimensionless form using suitable non-dimensional quantities, adhering the imposed constraints. To solve these transformed equations, finite-difference method, based on MAC (Marker Cell) technique, is used. Comprehensive numerical simulations address various control parameters, including nanoparticle volume fraction, Rayleigh number, source sink, Darcy Hartmann number slit position. results illustrated streamlines, isotherms, average Nusselt numbers plots, offering clear visualization impact parameters across different scenarios. Findings Results obtained show that exhibits higher than when comparing them at 10 6 –1 demonstrates low permeability, as evidenced –3 , in comparison Cu nanofluid. isothermal contours for positioned parallel vertical walls. Additionally, quantity each isotherm contour adjacent hot wall being monitored. nanoparticles exhibit highest 5 respectively. When uniform sink present, gradient central part cavity decreases. In contrast, absence leads more intense distribution cavity. differs significantly from scenario where regulates temperature. Originality/value originality this nanofluids. Partially corners essential optimizing wide range industrial applications. enhancement achieved increasing surface area, which improves convective transfer. These diverse applications encompass fields such chemical engineering, mechanical research, energy recovery processes. Researchers have been working improving precision cold methods, numerical, experimental analytical approaches. efforts aim enhance broad utility further.

Language: Английский

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Optimization of Heat Transfer in a Solid Torus: A Parametric and Numerical Approach Under Natural Convection

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 105680 - 105680

Published: Dec. 1, 2024

Language: Английский

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A Study of Quadratic Buoyancy‐Driven Magnetohydrodynamic Stagnation‐Point Flow With Radiative Heat, Thermophoresis, and Arrhenius Energy Over a Stretching Surface

Heat Transfer, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

ABSTRACT The motivation of this study is to explore the magnetohydrodynamic flow Newtonian fluid model, focusing on effects thermophoresis and nonlinear convection viscous in a stretchy sheet embedded permeable media. This work aims behavior, including novel radiative heat energy equation activation concentration equation. Through proper similarity variables, governing equations are transformed dimension‐free form. solved via bvp4c tool. stagnation‐point for nanofluid towards stretchable area offers comprehensive understanding relationships between dynamics, transportation, material properties. behavior several physical factors studied graphically temperature, velocity, boundary layer. Moreover, skin friction, mass, transmission rates important investigation. impact heat, mass represented table. From observation, it highlighted that permeability parameter reduces velocity transport rate. Magnetic enhances friction. Heat transfer decrease by 0.39% 0.21%, respectively, whereas friction rises 6.19% when M increased 0.5 from 1. rate increases 0.06% 0.2 0.4 0.6, but declines 39.8%. Eckert number radiation parameters enhance fluid's temperature. layer increasing chemical reactions Schmidt numbers. research helps design efficient systems processes engineering commercial uses incorporating motion exchange.

Language: Английский

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Magnetohydrodynamic stagnation flow of Al2O3–Cu–TiO2/H2O ternary nanofluid across a stretching/shrinking cylinder in the presence of nonlinear radiative heat and Arrhenius energy

Journal of the Korean Physical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

Language: Английский

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