Numerical analysis of MHD combined convection for enhanced CPU cooling in NEPCM-filled a trapezoidal cavity

International Communications in Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 159, P. 108343 - 108343

Published: Nov. 16, 2024

Language: Английский

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Artificial Intelligence Based Analysis for Magnetized Casson Fluid in Partially Heated Cavity Rooted with Heated Fin

International Journal of Thermofluids, Journal Year: 2025, Volume and Issue: unknown, P. 101095 - 101095

Published: Jan. 1, 2025

Language: Английский

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Artificial neural network with incompressible smoothed particle hydrodynamics for exothermic chemical reaction on heat and mass transfer in a rectangular annulus

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 31, 2025

This work aims to simulate the impacts of exothermic reaction and Soret-Dufour numbers on double diffusion Nano Enhanced Phase Change Materials (NEPCM) inside a porous annulus. The complex rectangular annulus contains two ellipses triangles walls' vertical sides. proposals closed domains during heat/mass transfer NEPCM can be used in energy savings, cooling electronic devices, heat exchangers. fractional-time derivative governing systems is solved numerically based ISPH method. artificial neural network (ANN) combined with results predict average Nusselt number Nu¯ Sherwood Sh¯ . main objective establishing ANN model this investigation create reliable predictive instrument capable estimating values described dimensionless Frank-Kamenetskii (Fk = 0-1), Darcy (Da 10-2-10-5), Dufour (Du 0-0.1), buoyancy ratio (N - 2 5), Rayleigh (Ra 103-106), Lewis (Le 1-20), Soret (Sr 0-0.2), fusion temperature (θf 0.05-0.9), fractional order parameter (α 0.9-1) thermosolutal convection suspension. overall transition as well velocity field are dramatically enhanced when Ra N were boosted. time helps reach steady state less instants. phase change material (PCM) always changed distribution changes controlled by temperature. struggled nanofluid flow at lower number. promising factor enhancing distributions an As result, may applied various engineering industrial fields because it significant terms improving transmission material. introduced precise agreement prediction actual Then, present accurately estimate values.

Language: Английский

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Thermodynamics second law analysis for thermosolutal convection of a ternary aqueous suspension within a novel shaped porous container under an influence of Lorentz force and local heater

Journal of Molecular Liquids, Journal Year: 2025, Volume and Issue: unknown, P. 127488 - 127488

Published: April 1, 2025

Language: Английский

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Data analysis of thermal performance and irreversibility of convective flow in porous-wavy channel having triangular obstacle under magnetic field effect

Heliyon, Journal Year: 2024, Volume and Issue: 10(14), P. e34580 - e34580

Published: July 1, 2024

Mixed convective nanofluid flow has substantial importance in improvement of thermal performance, and engineering to meet the global energy crisis. In this study, mixed a porous-wavy channel with an inner heated triangular obstacle under magnetic field effect is numerically examined. Nanofluid within cooled from its bottom top wavy-surfaces. A cylinder located at centerline wavy-channel. Finite element method utilized solve non-dimensional governing equations. The code validated comparing present results published numerical experimental results. response surface also implemented analyze obtained sensitivity. indicate that strength velocity accelerated rising Reynolds number, Darcy numbers inlet-outlet ports length but declined for Hartmann number volume fraction. Heat transferring rate heat transfer irreversibility are substantially increased higher values length, nanoparticle fraction reverse trend occurred effect. performance found significantly improved simultaneous increment Re, ϕ, Da decrement

Language: Английский

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Hybrid Runge–Kutta and lattice Boltzmann methods: Three-dimensional study of magnetohydrodynamics effect on heat exchange of electronic devices

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(12)

Published: Dec. 1, 2024

This study explores the impact of magnetic field on heat transfer and entropy generation in a simulated electronic device using magnetohydrodynamic principles through three-dimensional hybrid Runge–Kutta lattice Boltzmann method. By varying Rayleigh number (Ra) from 103 to 106 Hartmann (Ha) between 0 100, research evaluated influence these parameters average Nusselt (⟨Nu⟩), exchange ratio (R), within confined cavity. The results demonstrated that higher Ra values, particularly for ≥105, significantly enhance convective transfer, as reflected by an increase ⟨Nu⟩. However, introducing (Ha = 50, 100) diminishes this effect damping fluid motion, resulting reduction increases with Ra, reaching peak value 0.93 Ha 100 105, indicating improved dissipation under influence. In terms generation, at low (Ra 103), thermal conduction is predominant mechanism, primarily generated due effects. As 106, system shifted toward convection-dominated regime, where viscous effects becomes more significant. Under stronger fields, emerges dominant factor, further increasing energy dissipation. These suggested fields can be strategically applied optimize management devices controlling both generation. effectiveness approach, however, highly dependent specific flow conditions strength field.

Language: Английский

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Numerical investigation of combined convective heat transfer using fractal barriers in a circular cavity filled with nanofluid

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 105614 - 105614

Published: Dec. 1, 2024

Language: Английский

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Thermal and irreversibility analysis of non-Newtonian fluid within trapezoidal cavity containing heated cylinder

Journal of Taibah University for Science, Journal Year: 2024, Volume and Issue: 18(1)

Published: Nov. 9, 2024

In this article, the mixed convection transport of Carreau fluid in presence a magnetic field and heated circular cylinder within trapezoidal cavity is examined. Finite element analysis used via COMSOL Multiphysics software to simulate two-dimensional flow. The heat equation formulated by incorporating effects viscous dissipation Joule heating. upper lower surfaces are adiabatic, while left right sides assumed be cold. temperature distribution flow visualized through plotting isotherms, streamlines, total entropy generation. graphical representations performed examine impacts physical parameters on temperature, field, generation, including Reynolds number , Weissenberg (1.0≤We≤6.0), Power law index (0.1≤n≤5.0), Hartman (1.0≤M≤50), Richardson (0.2≤Ri≤5.0) (0.2≤Rc≤0.8). It found that heating main reasons increase thermal performance cavity. r(100≤Re≤500) ising values power numbers caused reduce velocity irreversible circulation While augmented elevating Eckert Hartmann numbers. Furthermore, transfer improved with increased number.

Language: Английский

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Analytical and numerical study of MHD natural convection in a slender porous cavity due to lateral uniform heat flux: Effect of LTNE state

Chinese Journal of Physics, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

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