Flow of hybrid CNTs past a rotating sphere subjected to thermal radiation and thermophoretic particle deposition

Alexandria Engineering Journal, Journal Year: 2022, Volume and Issue: 64, P. 969 - 979

Published: Sept. 20, 2022

Language: Английский

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Morphological nanolayer impact on hybrid nanofluids flow due to dispersion of polymer/CNT matrix nanocomposite material

AIMS Mathematics, Journal Year: 2022, Volume and Issue: 8(1), P. 633 - 656

Published: Oct. 9, 2022

<abstract> <p>The objective of this study is to explore the heat transfer properties and flow features an MHD hybrid nanofluid due dispersion polymer/CNT matrix nanocomposite material through orthogonal permeable disks with impact morphological nanolayer. Matrix nanocomposites (MNC) are high-performance materials unique design opportunities. These MNC beneficial in a variety applications, spanning from packaging biomedical their exceptional thermophysical properties. The present innovative polymeric/ceramic on magnetized nanofluids porous coaxial deliberated. Further, we also examined numerically prominence permeability ($ {\mathrm{A}}_{\mathrm{*}} $) function consisting Permeable Reynold number associated expansion/contraction ratio. significant effects these nanomaterials characteristics explored. mathematical structure, as well empirical relations for materials, formulated partial differential equations, which then translated into ordinary expressions using appropriate variables. Runge–Kutta shooting methods utilized find accurate numerical solution. Variations skin friction coefficient Nusselt at lower upper walls disks, rate measurements, computed important engineering physical factors. A comparison table graph effective nanolayer thermal conductivity (ENTC) non-effective presented. It observed that increment thickness (0.4−1.6), enhanced ENTC phenomena. By enhancement nanoparticles volume fraction (2% 6%), noticed. This novel work may be nanotechnology relevant nanocomponents.</p> </abstract>

Language: Английский

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Nonlinear Boussinesq and Rosseland approximations on 3D flow in an interruption of Ternary nanoparticles with various shapes of densities and conductivity properties

AIMS Mathematics, Journal Year: 2022, Volume and Issue: 7(10), P. 18416 - 18449

Published: Jan. 1, 2022

<abstract> <p>In current days, hybrid models have become more essential in a wide range of systems, including medical treatment, aerosol particle handling, laboratory instrument design, industry and naval academia, more. The influence linear, nonlinear, quadratic Rosseland approximations on 3D flow behavior was explored the presence Fourier fluxes Boussinesq thermal oscillations. Ternary nanoparticles different shapes densities were also included. Using necessary transformation, resulting partial differential system is transformed into governing ordinary system, solution then furnished with two mixed compositions (Case-Ⅰ Case-Ⅱ). Combination one looked at aluminum oxide (Platelet), graphene (Cylindrical), carbon nanotubes (Spherical), whereas mixture copper silver (Platelet). Many changes compositions, as well quadratic, nonlinear radiation situations flow, are discovered. Case-1 ternary combinations wider temperature distribution than Case-2 mixtures. Carbon (Platelet) exhibit stronger conductivity Case 1. In friction factor coefficient much higher. combination liquids great importance various systems such manufacturing, experimental handling academies, etc. Roseland's linear approximation three-dimensional characteristics existence buoyancy variation. addition, we combine tertiary solid densities. many practical applications plastics manufacturing polymer industry, difference remarkably large, causing density working fluid to vary non-linearly temperature. Therefore, (NBA) cannot be ignored, since it greatly affects heat transport fluid. Here, non-Newtonian elastomers controlled by tension an elastic sheet subjected NBA form studied.</p> </abstract>

Language: Английский

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Heat transport and magnetohydrodynamic hybrid micropolar ferrofluid flow over a non-linearly stretching sheet

AIMS Mathematics, Journal Year: 2022, Volume and Issue: 8(1), P. 164 - 193

Published: Sept. 28, 2022

<abstract> <p>A stable colloid called ferrofluid is made up of tiny magnetic particles, often magnetite (Fe₃O₄), that have been bonded with an amphiphilic dispersion layer and are then suspended in a suitable liquid solvent carrier. Current industrial uses for include dynamic sealing, inertial viscous damping, drug targeting, microrobots, etc. In this article, we studied the heat transfer MHD micropolar flow caused by non-linearly stretching surface. The results presented hybrid alumina- copper/ethylene glycol (${Al}_2 {O}_3$-Cu/EG) nanofluid. governing non-linear equations describing transformed into system ordinary differential using similarity transformations. Using BVp4c method, microstructure properties across stretched sheet studied. influence relevant parameters on stream function, velocity, micro-rotation temperature obtained represented graphically. computed original, it has observed if increase parameter, function velocity decrease, while increase. As Prandtl number increases, profile decreases. It Nusselt or rate nanofluid better as compared to flow.</p> </abstract>

Language: Английский

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Insight into Dynamic of Mono and Hybrid Nanofluids Subject to Binary Chemical Reaction, Activation Energy, and Magnetic Field through the Porous Surfaces

Mathematics, Journal Year: 2022, Volume and Issue: 10(16), P. 3013 - 3013

Published: Aug. 21, 2022

The mathematical modeling of the activation energy and binary chemical reaction system with six distinct types nanoparticles, along magnetohydrodynamic effect, is studied in this paper. Different hybrid nanofluids flowing over porous surfaces heat mass transfer aspects are examined here. empirical relations for nanoparticle materials associated thermophysical properties expressed as partial differential equations, which then interpreted into ordinary expressions using appropriate variables. initial shooting method converts boundary condition an guess finally finds out accurate numerical solution by Runge–Kutta stability. Variations volume fraction at lower upper walls surfaces, well rate measurements, computed controlling physical factors. effects flow-related variables on axial velocity, radial temperature, concentration profile dispersion also investigated. Permeable Reynolds number directly proportional to regression parameter. injection/suction phenomenon expanding/contracting cases, respectively, have been described engineering parameters. (1–5%) has a significant effect thermal velocity.

Language: 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, Journal Year: 2023, Volume and Issue: 47, P. 103062 - 103062

Published: May 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.

Language: Английский

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Numerical thermal study of ternary nanofluid influenced by thermal radiation towards convectively heated sinusoidal cylinder

Heliyon, Journal Year: 2023, Volume and Issue: 9(9), P. e20057 - e20057

Published: Sept. 1, 2023

The heat transfer remains a huge problem for industrialists and engineers because many production processes required considerable amount of to finish the process successfully. Although, conventional fluids have large scale industrial applications but unable provide transfer. Therefore, study is organized propose new ternary model using different physical constraints. key area nanofluid are chemical, applied thermal food processing engineering.and Methodology: purpose this research introduce impressive effects radiations, surface convection saddle/nodal points. results simulated via RKF-45 discussed in detail.The strength Al2O3 nanoparticles form 1%-7% (keeping fixed CuO Cu as 4% 6%) s1 = -0.2,-0.4,-0.6,-0.8 controlled fluid movement while 0.2,0.4,0.6,0.8 boosted velocity. Increasing Bi 0.1,0.2,0.3,0.4 increased temperature significantly. Further, shear drag maximum radiations Rd enhances rate.

Language: Английский

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Numerical investigation of non-transient comparative heat transport mechanism in ternary nanofluid under various physical constraints

AIMS Mathematics, Journal Year: 2023, Volume and Issue: 8(7), P. 15932 - 15949

Published: Jan. 1, 2023

<abstract> <sec><title>Significance</title><p>The study of non-transient heat transport mechanism in mono nano as well ternary nanofluids attracts the researchers because their promising characteristics. Applications these fluids spread industrial and various engineering disciplines more specifically chemical applied thermal engineering. Due huge significance nanofluids, is organized for latest class termed along with induced magnetic field.</p> </sec> <sec><title>Methodology</title><p>The model development done via similarity equations properties nanoparticles, resulting a nonlinear mathematical model. To analyze physical results parametric values performed RKF-45 scheme.</p> <sec><title>Study findings</title><p>The reveal that velocity $ F{'}\left(\eta \right) increased increasing m = 0.1, 0.2, 0.3 {\lambda }_{1} 1.0, 1.2, 1.3 $. However, decreased {\delta Tangential G{'}\left(\eta reduces rapidly near wedge surface {M}_{1} Further, nanofluid was greater than hybrid nanofluids. Shear drag local gradient quantities were greatest nanofluid.</p> </abstract>

Language: Английский

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Efficient passive GDQLL scrutinization of an advanced steady EMHD mixed convective nanofluid flow problem via Wakif–Buongiorno approach and generalized transport laws

International Journal of Modern Physics B, Journal Year: 2024, Volume and Issue: 38(31)

Published: Jan. 22, 2024

Owing to the practical importance of nanofluids and their adjustable thermal capabilities, this study intends develop a robust generalized differential quadrature local linearization (GDQLL) algorithm for examining realistically heat mass aspects electrically conducting during non-Darcian laminar motion nearby convectively heating vertical surface an active electromagnetic actuator (i.e., Riga plate). By invoking Wakif–Buongiorno model Oberbeck–Boussinesq approximations along with other transport laws Cattaneo–Christov non-Fick’s laws) Grinberg’s concept, set gigantic partial equations is stated appropriately in sense boundary layer describing exhaustively present EMHD mixed convective nonhomogeneous flow under passive control strategy nanoparticles within nanofluidic medium. Operationally, dimensionless forms governing are derived properly by introducing reasonable mathematical adjustments into preliminary formulation. In case, complexity leading structure reduced nonlinear coupled system ordinary equations, whose discrete numerical solutions computed perfectly via well-structured GDQLL algorithm. As foremost outcomes, it demonstrated that nanofluid its enhancement rate can be reinforced significantly through strengthening process as well improvement driven aspect Lorentz’s forces.

Language: Английский

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Further insights into mixed convective boundary layer flows of internally heated Jeffery nanofluids: Stefan's blowing case study with convective heating and thermal radiation impressions

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 55, P. 104121 - 104121

Published: Feb. 17, 2024

Motivating by the importance of viscoelastic nanofluids in nanotechnological and biomedical fields, current analysis intends mainly to examine aspects 2D steady Jeffery nanofluid flows near a vertically elongating surface, case where thermal radiation affects linearly on driven with effective contribution non-uniform internal heat source. By invoking Buongiorno's model together convective heating Stefan blowing conditions, leading boundary layer differential formulation is achieved successfully based reasonable hypotheses. Moreover, corresponding solutions are computed numerically using BVP4C's method. In this respect, outcomes reveal that mechanisms exhibit both an upsurging tendency towards mass profiles. On other hand, declining impression witnessed for Sherwood's number when strengthening these processes, whilst dissimilar seen Nusselt's number. Furthermore, involved rheological parameters reverse dynamical frictional sways motion.

Language: Английский

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