Analysis of Carreau triple nanoparticle suspension on flow over an elongating surface with ohmic dissipation

The European Physical Journal Plus, Год журнала: 2023, Номер 138(11)

Опубликована: Ноя. 22, 2023

Язык: Английский

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Water thermal enhancement in a porous medium via a suspension of hybrid nanoparticles: MHD mixed convective Falkner's-Skan flow case study

Case Studies in Thermal Engineering, Год журнала: 2023, Номер 47, С. 103062 - 103062

Опубликована: Май 11, 2023

Keeping in mind the whispered applications of Falkner's-Skan Flows, present hydrothermal scrutinization intended to explore two-dimensional flow pattern and thermal characteristics featuring steady mixed convective motion a radiating homogeneous hybrid nanofluidic mixture (Ag+TiO2)−H2O (i.e., aquatic containing spherical silver titanium dioxide nanoparticles) over non-movable wedge surface. By combining Darcy's-Brinkman single-phase models, conservation equations are stated properly case where impacts specific variable heat magnetic sources taken into account effectively problem. After many simplifications rearrangements, derived boundary layer handled numerically with help robust iterative GDQM-NRT algorithm, whose accurate results presented graphically tabularly. As main findings, it is evidenced that buoyancy forces, as well Lorentz's Darcy's act assisting factors, which exert cooling impact throughout due imposed axial pressure gradient. Energetically, demonstrated nanoparticles play noteworthy role enhancement transfer rate at surface strengthening resulting viscous drag forces.

Язык: Английский

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Unsteady magnetohydrodynamic tri-hybrid nanofluid flow past a moving wedge with viscous dissipation and Joule heating

Physics of Fluids, Год журнала: 2024, Номер 36(6)

Опубликована: Июнь 1, 2024

This study aims to boost thermal convection through careful selection and adjustment of nanomaterial volumes, focusing on the unsteady magnetohydrodynamic flow past a moving wedge with viscous dissipation Ohmic heating in ternary nanofluid alumina (Al2O3), copper oxide (CuO), (Cu) water. Employing mathematical modeling numerical analysis via MATLAB's BVP4C, it explores how discharge concentration influences characteristics identifies critical conditions for single or dual solutions. Key parameters such as motion parameters, Eckert number, magnetic strength, nanoparticle volume ratios were scrutinized their impact fluid dynamics heat transfer. Results show enhanced convective transfer increased hybridity fraction, alongside suction/injection parameter (S), unsteadiness (A), number (Ec), (M), albeit decreasing angle adjustments. Stability revealed stability initial solution vs instability secondary. Introducing novel time variable, τ=cAt(1−ct), this research demonstrates that at λ=−4.7(a leftward wedge) 0.04 hybrid nanofluids significantly outperform mono nanofluid, achieving efficiency gains 25.6% 7.5%, respectively. foundation underscores potential optimized mixtures advanced applications.

Язык: Английский

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Magnetized casson SA-hybrid nanofluid flow over a permeable moving surface with thermal radiation and Joule heating effect

Case Studies in Thermal Engineering, Год журнала: 2023, Номер 50, С. 103510 - 103510

Опубликована: Сен. 20, 2023

Here in, heat transfer characteristics of a magnetized Casson sodium alginate-alumina/copper hybrid nanofluid flowing through the permeable moving plane are investigated considering effects thermal radiation and Joule heating with Tiwari Das model. The primary objective present study is to investigate influence velocity ratio parameter on solid volume fraction parameter. In addition, temperature profiles used in current illustrate R, fraction, suction effect, magnetic field, heating, radiation. To apply three-stage Lobatto IIIa boundary value problems (bvp4c) approach implement appropriate similarity variables transform partial differential equations (PDEs) into system nonlinear ordinary (ODEs). It has been determined that there two branch solutions for against using copper values. Non-unique at R < Rci however, no happens > Rci. As Eckert number grew, rate transmission surged. increase values caused drop skin friction both upper lower branch.

Язык: Английский

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Radiation impact on heat and mass transfer of an unsteady MHD nanofluid flow past an exponentially accelerating vertical plate with heat generation

Radiation effects and defects in solids, Год журнала: 2025, Номер unknown, С. 1 - 23

Опубликована: Янв. 28, 2025

Язык: Английский

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Numerical insights of heat and mass transfer in a Darcy-Forchheimer porous space subjected to MHD dissipative stagnation point flow of cross nanofluid towards a melting stretching cylindrical surface

International Communications in Heat and Mass Transfer, Год журнала: 2024, Номер 159, С. 108088 - 108088

Опубликована: Сен. 18, 2024

Язык: Английский

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Numerical solutions and stability analysis of hybrid Casson nanofluid flow with MHD and heat transfer effects

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 9, 2024

Abstract This research addresses the complex dynamics of hybrid Casson nanoliquids in flow and heat transfer applications, focusing on interaction between fluid thermal phenomena presence magnetohydrodynamics (MHD), viscous dissipation, Joule heating. The motivation behind this study stems from need to enhance efficiency processes various engineering such as cooling systems electronic devices, where nanofluids can offer superior performance compared conventional fluids. novelty work lies its comprehensive numerical investigation a nanoliquid over moving permeable surface, incorporating detailed analysis MHD effects, Using Tiwari Das model formulate governing equations, employs similarity transformations convert these equations into system ordinary differential (ODEs). MATLAB is then used derive solutions, with stability ensuring physical dependability solutions. Key findings reveal that temperature distribution shows positive correlation both Prandtl Hartmann numbers. Additionally, relationship Eckert number observed. These insights valuable guidance for engineers aiming optimize using nanofluids, highlighting their potential improved management practical applications.

Язык: Английский

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Water-based hybrid nanofluid flow containing CNT nanoparticles over an extending surface with velocity slips, thermal convective, and zero-mass flux conditions

Open Physics, Год журнала: 2025, Номер 23(1)

Опубликована: Янв. 1, 2025

Abstract This study computationally examines the water-based hybrid nanofluid flow with impacts of carbon nanotubes on an elongating surface. The is influenced by velocity slip constraints, zero-mass flux conditions, and thermal convection. Magnetic effects are applied to system in normal direction. activation energy chemical reactivity used concentration equation. modeled equations have been evaluated numerically through bvp4c technique after conversion dimensionless form a similarity transformation approach. It has discovered this work that expansion magnetic porosity factors, velocities declined. Augmentation ratio factor declined primary while supporting secondary velocity. Thermal profiles intensified progression Brownian motion factor, Biot number thermophoresis exponential heat source radiation factors. Concentration distribution escalated upsurge Schmidt reaction impact enhances distribution, exhibits reducing distribution. To ensure validation work, comparative conducted fine agreement among current established datasets.

Язык: Английский

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Multiple solutions in magnetohydrodynamic stagnation flow of hybrid nanofluid past a sheet with mathematical chemical reactions model and stability analysis

Physics of Fluids, Год журнала: 2023, Номер 35(7)

Опубликована: Июль 1, 2023

The homogeneous heterogeneous reactions (H–H reactions) in the magnetohydrodynamic (MHD) boundary layer stagnated flow of an Al2O3–Cu–water base hybrid nanofluid past a stretching shrinking sheet are studied. A newly developed two-phase model based on Buongiorno's is used to understand nanofluids behaviors. Multiple solutions observed for specific ranges various parameters, whose stabilities checked and discussed, which seem have been neglected previously published articles about studies MHD-stagnation mathematical chemical models using nanofluid. reaction considered this case isothermal first order, whereas cubic autocatalytic. so captured examined graphs demonstrate impact different physical their insights also given. results show that nanofluids, distinct functions processes reactions, play key role homogeneous–heterogeneous reactions' transport mechanism. quadratic multiple regression analysis evaluations local Nusselt number thermophoretic predominates over Brownian motion both magnetic non-magnetic effects.

Язык: Английский

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Entropy analysis and hydrothermal behavior of magnetohydrodynamic MOS2–Fe3O4/H2O hybrid nanofluid flow driven by buoyancy in a square enclosure with diverse fin heights

Physics of Fluids, Год журнала: 2023, Номер 35(12)

Опубликована: Дек. 1, 2023

Fins, referred to as extended surfaces, play a crucial role in enhancing heat transfer across various industrial sectors. They achieve this by increasing the surface area available for convective transfer. These widespread applications span fields such energy production, mechanical engineering, studies, recovery processes, and chemical engineering. The broad utility of fins has prompted researchers enhance their precision through diverse methods, including numerical, experimental, analytical approaches. Motivated these practical applications, study undertakes theoretical investigation analyze effects varying fin heights on behavior hybrid hydromagnetic nanofluid within porous square enclosure. explores three distinct cases. In first case, fixed-height are attached upper lower walls. second wall remains static, while those from 0.25L 0.5L. Conversely, third case involves extending height in-house MATLAB code, coupled with finite difference method, is employed solve governing equations, its reliability confirmed comparison prior publications. Thorough numerical simulations conducted, encompassing control parameters thermal radiation, Rayleigh number, nanoparticle volume fraction, Hartmann generation/absorption, Darcy number. results visually presented streamlines, isotherms, average Nusselt number plots, elucidating impact range scenarios. It noticed that 3 exposes 96.06% higher rate than 2 values fraction all cases, cause reduction entropy generation. For employing containing 5% causes 110.41% involving bottom compared 1. Similarly, top leads 100.41%.

Язык: Английский

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