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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Heat and mass exchanger analysis for Ree-Eyring hybrid nanofluid through a stretching sheet utilizing the homotopy perturbation method

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 54, P. 104014 - 104014

Published: Jan. 11, 2024

An investigation is being carried out to describe the flow of a Ree-Eyring hybrid nanofluid by stretch flow. SiO2 and GO are examined for use as nanoparticles in accumulation with carboxymethyl cellulose (CMC) water at low concentrations. A concentration between 0.0 0.4 % suggested base fluid (CMC− water). The model equations firstly converted into ordinary differential through suitable alteration. Homotopy Perturbation Method (HPM) R–K method were applied governing (ODEs). produced results identified numerical technique. Both these methods approval demonstrate that our approach achieves an acceptable level accuracy. obtained data behaviours velocity, temperature, about other physical factors. Multiple graphs illustrating conclusions significance shown thoroughly analyzed. most important findings from this research show stretching sheet has role determining depth boundary layer. By raising Weissenberg number, thickness layer will be enhanced, which lead augmentation velocity non-Newtonian fluid. Moreover, Prandtl number was second crucial variable explored, it follows enhancing effect lessening thermal last parameter Schmidt increasing caused significant reduction mass

Language: Английский

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Further insights into steady three-dimensional MHD Sakiadis flows of radiating-reacting viscoelastic nanofluids via Wakif’s-Buongiorno and Maxwell’s models

Journal of Umm Al-Qura University for Applied Sciences, Journal Year: 2024, Volume and Issue: unknown

Published: April 9, 2024

Abstract Keeping in mind the stress relaxation tendency of many viscoelastic multi-phase flows (e.g., polymer solution and transport phenomena red cell suspensions within blood media), present research investigation intends principally to develop a realistic model for revealing properly aspects reacting-radiating Maxwell nanofluids during their laminar boundary layer steady regime over horizontal impermeable surface under transversal magnetic influence. For this purpose, principal leading differential formulation is derived theoretically by linking Wakif’s-Buongiorno approach with Maxwell’s model. By invoking fundamentally general assumptions passive control strategy nanoparticles, governing PDEs’ simplified accordingly then stated case convective heating condition at bi-stretching surface. executing feasible non-dimensionalization technique, monitoring ODEs’ system achieved successfully, whose solutions are presented precisely different illustrative scenarios using Richardson’s extrapolation method. After carrying out successfully several validating tests, it demonstrated that weakly feature has generally slight delaying effect on nanofluid motion. This dynamical weakening can be reinforced more generation thermal energy intensifying external field source. Additionally, these physical factors show an influence drag forces. However, dropping impression seen local heat transfer contact Contrary broadening impact radiative as well thermophoresis mechanisms mass regions, witnessed first-order chemical reaction mechanism Brownian’s motion exhibit shrinking region.

Language: Английский

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Influences of blowing and internal heating processes on steady MHD mixed convective boundary layer flows of radiating titanium dioxide‐ethylene glycol nanofluids

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2024, Volume and Issue: 104(4)

Published: Feb. 10, 2024

Abstract The present analysis intends predominantly to explore the multiple behaviors of radiating ethylene glycol‐based titanium dioxide nanofluids during their steady boundary layer flows near a vertical permeable surface under prominent impacts uniform blowing and nonuniform internal heating processes. By incorporating dynamical contribution Lorentz buoyancy forces in momentum equation adopting single‐phase nanofluid approach along with constitutive equations second‐grade rheological model Corcione's correlations, governing partial differential appropriate conditions are derived mathematically based on theory other admissible physical approximations. After several simplifications, aforesaid formulation is converted into set ordinary realistic conditions, which solved thereafter numerically using GDQ's‐NT method. Moreover, it demonstrated that strengthening processes has boosting effect velocity temperature profiles. However, influencing parameters show dissimilar thermal trends. Furthermore, witnessed mixed convective heat transfer, viscoelasticity trend nanofluidic medium, nanoparticles’ loading exhibit an enhancing impression transfer rate.

Language: Английский

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Exploring the impact of stratification on the dynamics of bioconvective thixotropic fluid conveying tiny particles and Cattaneo-Christov model: Thermal storage system application

Propulsion and Power Research, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

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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A passive modeling strategy of steady MHD reacting flows for convectively heated shear-thinning/shear-thickening nanofluids over a horizontal elongating flat surface via Wakif’s-Buongiorno approach

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 24

Published: Feb. 9, 2024

In contrast to the previous traditional investigations, present scrutinization intends principally provide a proper differential formulation examine realistically shear-thinning and shear-thickening aspects of convectively heated viscoelastic nanofluids during their steady two-dimensional boundary layer flows over stretchable horizontal surface. Besides, third-order chemical reaction process can take place within nanofluidic medium in presence an external magnetic field source. From theoretical point view, constitutive rheological laws Carreau's model have connected appropriately with conservation equations Wakif's-Buongiorno develop simplified governing partial based on theory. By adopting feasible mathematical transformations invoking passive nanoparticles' control strategy, leading dimensionless are derived form coupled nonlinear structure ordinary along conditions, whose approximate solutions computed accurately via Runge's-Kutta-Fehlberg method. this respect, several findings presented thereafter graphically tabularly different physical scenarios. As foremost results, it is found that tendencies reciprocal influences axial velocity, nanofluid temperature, molar concentration distribution, skin friction coefficient, Nusselt's number, surface nanoparticles when Weissenberg's number gets raised. Whist, similar impression witnessed for these propensities augmenting other operating parameters independently.

Language: Английский

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Numerical Simulation of MHD Sakiadis Flows of Convectively Heating Thixotropic Nanofluids in a Porous Medium Using Revised Transport Laws and Wakif-Buongiorno's Model

Partial Differential Equations in Applied Mathematics, Journal Year: 2025, Volume and Issue: unknown, P. 101071 - 101071

Published: Jan. 1, 2025

Language: Английский

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Artificial neural network modeling of mixed convection viscoelastic hybrid nanofluid across a circular cylinder with radiation effect: Case study

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 50, P. 103487 - 103487

Published: Sept. 11, 2023

Language: Английский

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