A comparative study of Cross and Carreau fluid models having variable fluid characteristics

International Communications in Heat and Mass Transfer, Journal Year: 2022, Volume and Issue: 139, P. 106431 - 106431

Published: Oct. 12, 2022

Language: Английский

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Experimental study and development of mathematical model using surface response method to predict the rheological performance of CeO2-CuO/10W40 hybrid nanolubricant

Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 16(6), P. 104721 - 104721

Published: Feb. 27, 2023

In this study, the rheological behavior of CeO2-CuO/10W40 hybrid nanolubricant with several volume fractions (VFs) over range 0.25–1.5 vol%, temperatures 5–55 °C, and shear rates varying from 20 to 1000 rpm are experimentally assessed. The viscosity measurements at various (SRs), VFs, demonstrated that 10W40 engine oil behave non-Newtonian. experimental results show maximum reduction increasing SR occurs T = 45 °C VF 1.25 %, which its value is about 30.28 %. findings demonstrate an increase in temperature reduced (between 91.84 % 93.10 %) while increases VF. To forecast data, two correlations (functions three variables: temperature, VF, SR) presented based on data using curve fitting response surface method (RSM). good concordance exists between correlation estimate nano-lubricant. Additionally, developed by RSM more straightforward than one derived fitting. This new nano-lubricant can be used as a coolant automotive industry.

Language: Английский

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Entropy generation optimization in a radiative hybrid nanofluid (engine oil + NiZnFe2O4 + MnZnFe2O4) flow through a convectively heated microchannel with cross-diffusion effects

Journal of Thermal Analysis and Calorimetry, Journal Year: 2023, Volume and Issue: 148(20), P. 10907 - 10916

Published: Aug. 11, 2023

Language: Английский

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Forced convection analysis of Williamson-based magnetized hybrid nanofluid flow through a porous medium: Nonsimilar modeling

Numerical Heat Transfer Part B Fundamentals, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: Jan. 11, 2024

The purpose of this work is to analyze the convective horizontal flow Williamson-based magnetized hybrid nanofluid. Williamson fluid with heat transfer stimulated in a porous media over stretching surface. Two different type nanoparticles such as, molybdenum disulfide (MoS2) and copper (Cu) engine oil (Eo) as base are considered work. inspected based on Khanefer model. governing system transformed into nondimensionalized partial differential equations (PDE's) by utilizing nonsimilar transformation. analytically approximated using local nonsimilarity (LNS) perturbation approach which approximate nondimensional PDE's ordinary (ODEs). LNS ODEs simulated finite difference-based algorithm bvp4c. outcomes simulation for surface incorporating evolvement Nusselt number (Nu) distinct values prandtl compared previous published numerical results. appropriate range parameters evaluated detect variance physical quantities namely, velocity (f′(η)) fluid, temperature (θ′(η)) co-efficient skin friction (Cf). percentage difference between single nano-fluid nano-fluids made given tabular form. To best author knowledge, nonosimilar study hybrid-based nanofluid not yet investigated. This anticipated offer crucial information implementation innovative devices future serve an invaluable resource researchers looking at nanofluids under various assumptions.

Language: Английский

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Chemically reactive squeezed flow of magnetized Al2O3−PA

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 54, P. 104040 - 104040

Published: Jan. 22, 2024

The exceptional lubricating properties and stability of Al2O3−PAO nanolubricant make it a suitable option for many industries such as automotive, aerospace, renewable energy, medical. This study aims to examine the squeezed flow magnetized (Al2O3−PAO) across sensor surface alongwith fascinating impacts nonlinear heat generation, thermal radiation thermophoretic particle deposition (TPD). Heat transfer phenomenon is further observed in presence viscous dissipation Joule heating. In order this investigation more convenient, conductivity assumed be variable. introduction fluid over use Patel model are novel features work. mass supported by applying chemical reaction higher order. With apposite similarity transformations, governing PDEs have been modified ODEs. We treated resulting ODEs numerically using MATLAB built-in bvp-4c solver. It perceived that improving values solid volume fraction magnetic parameter play substantial role enhancing velocity temperature Al2O3−PAO, while index causes decline well nanolubricant. concentration profile declines parameter, whereas increasing tends enhance profile.

Language: Английский

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Natural convective and Cattaneo–Christov model for couple stress nanofluid at the middle of the squeezed channel with sensor surface

International Journal of Modern Physics B, Journal Year: 2024, Volume and Issue: 38(32)

Published: Feb. 29, 2024

The aim of this work is to present a natural convective and squeezing flow model two-dimensional couple stress nanofluid which flowing on the sensory surface with variable fluid viscosity. microcantilever happening at free stream. sensor also useful detect movement variations in thermal solutal rates. Cattaneo–Christov adopted along nanoparticle chemical reaction explore transmission heat mass analysis non-Newtonian squeezed by using conduction has various industrial scientific applications including polymer processing, wastewater treatment, reactors, biomedical flows, cooling heating processes industries, exchangers, microfluidics, oil gas industries. All assumptions are applied basic governing laws then we get partial differential equations. equations transmuted into ordinary form via transformations numerical results these ODE’s examined well-defined technique “Shooting Method”. For higher inputs stress, index permeability velocity, fluid’s internal velocity decreases. Because Prandtl number relaxation coefficient, transfer mechanism slows down. Mass increases for greater diffusivity coefficient decreases due concentration relaxation. Further, dependency emerging parameters skin friction illustrated tabular form. parametric effects (velocity, temperature concentration) introduced values shown table.

Language: Английский

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Numerical investigation of chemically reacting jet flow of hybrid nanofluid under the significances of bio-active mixers and chemical reaction

Heliyon, Journal Year: 2023, Volume and Issue: 9(7), P. e17678 - e17678

Published: June 27, 2023

Jet flows are employed in a variety of applications. It can be found daily life as well agriculture, for example, jet flow assists with irrigation and harvest protection. The current problem is related to the study energy mass transference on hybrid nanoliquid mixed convection effect due vertical stretching surface conveying cobalt ferrite CoFe2O4 titanium dioxide TiO2 nanoparticles (NPs) base fluid water H2O. Further, role chemical reaction, heat source/sink, activation investigated. By exploiting idea modified Buongiorno model, thermophoretic Brownian diffusivity effects have discoursed existing behavior. mathematical framed application nonlinear higher-order PDEs. Higher-order PDEs model changed into highly ODEs by using concepts suitable similarity transformations. cracked manipulating bvp4c technique MATLAB. impacts numerous physical parameters velocity, energy, concentration computed graphical forms. Key findings from present revealed that velocity nanofluid decreased greater volume fraction. Furthermore, transportation thermophoresis parameter.

Language: Английский

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Entropy generation on MHD Eyring-Powell hybrid nanofluid flow over a curved stretching sheet with shape factors and the Cattaneo–Christov heat flux model: A comparative study

Scientia Iranica, Journal Year: 2024, Volume and Issue: 0(0), P. 0 - 0

Published: Jan. 17, 2024

This article focuses on the influence of shape factor entropy generation MHD flow an Eyring–Powell hybrid nanofluid past a permeable over curved stretched sheet with Cattaneo–Christov heat flux. Using Homotopy Perturbation Method (HPM) and shooting method, governing nonlinear coupled PDEs are converted into ODEs similarity variables solved (R-K 4th order). Magnetic field, mixed convection, Eyring-Powell fluid, thermal relaxation, curvature, radiation studied represented in terms velocity, temperature, production, Bejan number, transfer, coefficients skin friction. To compare outcomes, we employ HPM. The produces more precise reliable results than numerical method. When magnetic field affected as it increased stretching sheet, velocity profile decreased. In actuality, Lorentz force increases result increases, acting against liquid to slow down system. presence also decreases parameters. three shapes, temperature rises increasing Brinkman number values (sphere, platelet, blade).

Language: Английский

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Entropy generation and sensitivity analysis for a squeezed flow of a Williamson hybrid nanofluid under the supervision of microcantilever sensor

Results in Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 103464 - 103464

Published: Nov. 1, 2024

Language: Английский

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Simulating microbial dynamics in electro-magnetized Carreau blood enhanced with trihybrid nanoparticles in a constricted or dilated artery using artificial neural networks

International Journal of Modelling and Simulation, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 38

Published: Feb. 18, 2025

Language: Английский

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