Thermal efficiency of radiated nanofluid through convective geometry subject to heating source

Ain Shams Engineering Journal, Journal Year: 2024, Volume and Issue: 15(10), P. 102947 - 102947

Published: July 12, 2024

Significance of nanofluids cannot be overlooked because their enhanced characteristics which play vibrant role in thermal performance. These make them more effective for practical applications. Addition multiple types nanoparticles potentially affect the conductivity base fluid directly contribute heat transfer mechanism. Hence, current work deals with study tetra nanofluid model including influence different parameters. The results obtained through numerical approach and examined that motion at variable saddle/nodal regions reverse variations higher λ values. inclusion surface convection Bi=0.1,0.2,0.3,0.4 particles concentration from 0.04 to 0.16, generation factor (Q1=0.5,1.0,1.5,2.0) radiation effects (Rd=1.0,2.0,3.0,4.0) are observed reliable physical tools enhance performance is advantageous engineering as well industrial point view. Further, boundary layer enlarges Rd reduced Q1 strength ϕi,i=1,2,3.

Language: Английский

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Analysis of ZnO-SAE50 nanolubricant performance under variable thermal conductivity and solar radiations: Model for bidirectional stretchable surface

Journal of Radiation Research and Applied Sciences, Journal Year: 2024, Volume and Issue: 17(4), P. 101106 - 101106

Published: Sept. 10, 2024

Language: Английский

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Couple-stress nanofluid flow comprised of titanium alloy subject to Hall current and Joule heating effects: Numerical investigation

AIP Advances, Journal Year: 2024, Volume and Issue: 14(11)

Published: Nov. 1, 2024

Nanofluid flow over a rotating disk has several applications in engineering and industrial sectors, such as cooling systems, heat exchangers, aerospace renewable energy systems. In the current analysis, couple stress nanofluid is reported. The consists of ethylene glycol titanium aluminum vanadium (Ti6Al4V) nanoparticles (NPs). unique properties Ti6Al4V-NPs, biocompatibility, high strength, boiling point (1604–1660 °C), corrosion resistance, make them more suitable for automobile industries. For mass transfer, Cattaneo–Christov concept introduced. addition, fluid subjected to magnetic field, Hall current, thermal radiation, Joule heating. modeled equations are restructured into dimensionless system ordinary differential (ODEs) by using similarity approach. ODEs further numerically solved through MATLAB package based on finite difference method (BVP4c). results presented figures. It been observed that curves decline with influence solutal time relaxation parameters, respectively.

Language: Английский

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Analyzing the impact of non-Newtonian nanofluid flow on pollutant discharge concentration in wastewater management using an artificial computing approach

Applied Water Science, Journal Year: 2024, Volume and Issue: 15(1)

Published: Dec. 19, 2024

Wastewater discharge is important in numerous areas of industries and governance the environmental sectors. Controlling monitoring water pollution are essential for protecting availability upholding standards sustainability. Thus, current study, effects pollutant concentration (PDC) considered while analyzing flow non-Newtonian nanofluids (NNNF) through permeable Riga surface subject to heat radiation. Walter's B fluid (WBF) second-grade fluids (SGFs), two distinct types NNNF, have been investigated. The expressed as a system PDEs, which simplified into lower order by employing similarity approach. These equations (ODEs) solved using Levenberg Marquardt back-propagation optimization algorithm (LMBOA) artificial neural network (ANN). Matlab package "bvp4c" used generating dataset validate results ANN-LMBOA. was developed various scenarios, well ANN evaluation validation. accuracy ANN-LMBOA model estimated though statistical tools, i.e., histogram, regression measures, curve fitting, performance plots, validation tables. numerical outcomes bvp4c also compared published literature. Which show best resemblance with each other limiting case. targeted date absolute error accomplished within range 10–4-10–5 confirms outstanding It concluded form histograms (EHs) that EHs values case 1–4 lie about $$3 \cdot 6 \times 10^{{ - 7}}$$ , $$7 83 9}}$$ $$- 4.7 8}}$$ 2 9 6}}$$ respectively.

Language: Английский

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Significance of Fe₃O4/MnZnFe₂O₄ nanoparticles for thermal efficiency of ethylene glycol: Analysis for single-phase nanofluid flow using Cattaneo Christov theory

Modern Physics Letters B, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Thermal conductivity of nanoparticles is a vibrant parameter in the heat transfer applications applied thermal, mechanical and chemical engineering. The use conventional fluids augments thermal conductance which directly affects mechanism. It greatly depends on nature nanoparticles. Hence, excellent hybrid Fe 3 O 4 /MnZnFe 2 allows to select for catalytic agent with EG as primary solvent applications. Besides nanoparticles, physical phenomena like heating species, Cattaneo Christov flux variable temperature surface potentially alter performance single phase nanofluids. Therefore, current effort aims formulate problem through slanted elongating having acute angle ground level influenced parametric ranges. final was examined numerically (shooting scheme coupled RK scheme) then analyzed predicted ranges better performance. parallel results reveal that nanofluid movement slower than common fluid over domain because dominant denser effects. generative ([Formula: see text] radiation number are observed be parameters boost model efficiency. However, thermally radiative nanofluids more efficient augment remarkably. shear drag improved from [Formula: (for text], against text]. Further, source Q enhances transport rate at it prevailing specified values Q.

Language: Английский

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Numerical exploration of tangent hyperbolic nanofluid flow subject to homogeneous and heterogeneous chemical reactions past a permeable wedge

Modern Physics Letters B, Journal Year: 2025, Volume and Issue: unknown

Published: March 29, 2025

Numerically, the effect of melting heat transfer on magnetohydrodynamics (MHD) tangent hyperbolic nanofluid (Thnf) flow across a porous wedge is evaluated. Electronic devices generate lot while running, so Thnf commonly used to reduce its temperature. has ability more effectively, thus minimizing risk high temperature and component disruptions. The impact source/sink, thermal radiation, homogeneous/heterogeneous chemical reactions also observed in fluid flow. modeled equations are reformulated into non-dimensional form ordinary differential (ODEs), which further numerically solved through nonlinear dynamics (ND)-solve approach. For validity results, numerical outcomes relatively related published studies, reveal that proposed model results accurate consistent. Furthermore, it can be determined from graphical velocity drops with rising permeability parameter whereas enhances positive variation power law index. increasing influence angle parameters augments energy distribution rate. intensifying heterogeneous homogeneous reaction decreases concentration profile.

Language: Английский

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Non-linear thermal radiation effect on double diffusive mixed convective stagnation point flow of tangent hyperbolic nanofluid with suction/injection

Aircraft Engineering and Aerospace Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Purpose The study aims to investigate the impact of injection/suction and non-linear thermal radiation (NLTR) on double diffusive mixed convective stagnation point flow tangent-hyperbolic nanofluid (THNF), incorporating effects heat absorption generation. Design/methodology/approach To make analysis more efficient, governing form model partial differential equations (PDE) is changed into ordinary eqquations (ODE’s) by appropriate transformations. Following this, authors solved transformed using homotopy method Mathematica software. This investigates how varying values for suction/injection, Biot number influence concentration, temperature velocity profiles. Moreover, local Sherwood number, skin friction Nusselt are included various parameters involved in study. Findings In this analysis, profile enhances while magnifying absorption/generation parameter when suction or injection zero considered. While boosting parameter, boundary layer found thickening. At A = 1.032, coefficient remains constant as increases. Research limitations/implications limitation that laminar steady. Practical implications These results have practical applications across diverse fields, including glass fiber, cooling metallic sheets, paper production food processing. outcome research THNF can be applied processing industrial applications, biomedical treatments analogy spongy cartilage. Originality/value focus examining NLTR presence generation which not yet experimented. clearly shows novelty work.

Language: Английский

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Investigation of unsteady Buongiorno nanofluid in a slanted thermally radiated revolving channel under upstream microbial movement in the absence of chemical reaction

Journal of Radiation Research and Applied Sciences, Journal Year: 2024, Volume and Issue: 17(4), P. 101120 - 101120

Published: Sept. 19, 2024

Language: Английский

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Influence of Rotation and Viscosity on Parallel Rolls of Electrically Conducting Fluid

Processes, Journal Year: 2024, Volume and Issue: 12(9), P. 1882 - 1882

Published: Sept. 2, 2024

Rayleigh–Bénard convection is a fundamental fluid dynamics phenomenon that significantly influences heat transfer in various natural and industrial processes, such as geophysical the Earth’s liquid core performance of exchangers. Understanding behavior conductive fluids under influence heating, rotation, magnetic fields critical for improving thermal management systems. Utilizing Boussinesq approximation, this study theoretically examines nonlinear planar layer heated from below subjected to rotation about vertical axis presence field. We focus on onset stationary temperature difference applied across increases. Our theoretical approach investigates formation parallel rolls aligned with field free–free boundary conditions. To analyze system equations, we expand dependent variables series orthogonal functions express coefficients these power parameter ϵ. A solution problem derived through Fourier analysis perturbations, extending O(ϵ8), which allows detailed visualization rolls. Graphical results are presented explore dependence Nusselt number Rayleigh (R) Ekman (E). observe both local average increase decreases. Furthermore, flow appears become more deformed E decreases, suggesting an increased external factors rotation. This deformation may enhance mixing within fluid, thereby between different regions.

Language: Английский

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Heat transfer analysis of reactive boundary layer flow over a wedge in a nanofluid using Buongiorno’s model

AIP Advances, Journal Year: 2024, Volume and Issue: 14(11)

Published: Nov. 1, 2024

The reactive two-dimensional steady laminar boundary layer flow over a wedge is examined in this work, with an emphasis on the mass and heat transfer of nanofluids. This study investigates effects three different chemical reactions—Arrhenius, bimolecular, sensitized reactions—using Buongiorno’s model. Through similarity transformations, system partial differential equations (PDEs) converted into ordinary equations, which are then solved by combining shooting method Runge–Kutta–Fehlberg numerical technique. findings show that skin friction coefficient greatly increased raising pressure gradient stretching/contracting parameters. On other hand, as thermophoresis parameter, Brownian motion activation energy, Lewis number increase, Nusselt decreases, signifying decrease efficiency transfer. A higher Sherwood number, indicates brought about increases Falkner–Skan power-law parameter. These provide important information for maximizing nanofluid systems. Key values coefficient, local given tabular form, results graphically represented.

Language: Английский

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