Magnetized Cross tetra hybrid nanofluid passed a stenosed artery with nonuniform heat source (sink) and thermal radiation: Novel tetra hybrid Tiwari and Das nanofluid model

Journal of Magnetism and Magnetic Materials, Journal Year: 2023, Volume and Issue: 569, P. 170443 - 170443

Published: Jan. 25, 2023

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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Time-dependent Darcy–Forchheimer flow of Casson hybrid nanofluid comprising the CNTs through a Riga plate with nonlinear thermal radiation and viscous dissipation

Nanotechnology Reviews, Journal Year: 2024, Volume and Issue: 13(1)

Published: Jan. 1, 2024

Abstract Carbon nanotubes (CNTs) are gaining popularity due to their expanding uses in industrial and technical processes, such as geothermal reservoirs, water air filters, coatings, solar collection, ceramic material reinforcement, electrostatic dissipation, etc . In addition, the CNTs have superior electrical conductivity biocompatibility. Based on aforementioned applications, current work examines time-dependent Darcy–Forchheimer flow of water/glycerin-based Casson hybrid nanofluid formed by single-walled multi-walled over a Riga plate under velocity slip. The energy expression is modeled through nonlinear thermal radiation viscous dissipation impacts. incorporation convective boundary condition into model improves its realism. By employing suitable variables, governing models re-framed ordinary differential equations. bvp4c homotopy analysis method used find computational results equations conditions. novel characteristics variety physical parameters velocity, temperature, skin friction coefficient (SFC), local Nusselt number (LNN) discussed via graphs, charts, tables. It found that fluid decays when enriching Forchheimer number, unsteady porosity parameters. parameter plays an opposite role heating cooling cases. modified Hartmann enhances surface drag force, declines SFC. develops heat transfer rate, suppresses LNN. simulated problem has many applications engineering sectors, including manufacture, systems, storage units, thermodynamic other fields.

Language: Английский

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Exploration of Multiple Transfer Phenomena within Viscous Fluid Flows over a Curved Stretching Sheet in the Co-Existence of Gyrotactic Micro-Organisms and Tiny Particles

Mathematics, Journal Year: 2022, Volume and Issue: 10(21), P. 4133 - 4133

Published: Nov. 5, 2022

In the present study, magnetohydrodynamics (MHD) bio-convective flow and heat transfer of nanofluid, due to swimming gyrotactic micro-organisms over a curved stretched sheet, is examined. addition, thermophoresis Brownian motion behaviors are also investigated by assuming slip conditions at boundary. A non-linear system partial differential equations (PDEs) reduced ordinary (ODEs). For convergent solutions, obtained ODE solved use BVP4C routine integrated MATLAB package. impacts different influential parameters on motile micro-organisms, temperature, velocity, concentration profiles deliberated. The velocity field observed be when parameter increases. As main results, it demonstrated that distribution microorganisms against curvature decreases significantly. Similarly, found nanofluid (i.e., parameters) Peclet number reduce micro-organisms’ number. On other hand, evidenced can improved with an increase in Schmidt

Language: Английский

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Numerical analysis of heat and mass transfer in micropolar nanofluids flow through lid driven cavity: Finite volume approach

Case Studies in Thermal Engineering, Journal Year: 2022, Volume and Issue: 37, P. 102233 - 102233

Published: July 13, 2022

In this article, the heat and mass transfer mechanism of micropolar nanofluid embedded with Buoyancy force magnetic field across an enclosure has been analyzed. Mass, energy, momentum equations are required to construct mathematical model evaluate efficacy thermal performance nanoparticles.The motivation for study is improve efficiency in equipment recovery units industrial engineering processes. Given signification dimensional analysis, 2D set up their dimensionless context. addition, finite volume approach (FVM) employed numerical simulations. The thermophoresis Brownian motion parameters considered temperature field, as proven via simulation. As a result random mobility nanoparticles, more emitted inside enclosure. Furthermore, diffusivity Schmidt number inversely related,so that diffusion cavity faster small values number. Additionally, it discovered high vortex viscosity parameter produces weak concentration significant behavior when Reynolds significant. simulations captured graphical form, results explained detail.

Language: Английский

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Numerical passive control of alumina nanoparticles in purely aquatic medium featuring EMHD driven non-Darcian nanofluid flow over convective Riga surface

Alexandria Engineering Journal, Journal Year: 2022, Volume and Issue: 68, P. 747 - 762

Published: Dec. 22, 2022

Motivated by the thermal importance of feeble electrically conducting nanofluids and their flow controls in many industrial engineering applications, present scrutinization intended to evidence comprehensively main electro-magneto-hydrothermal mass aspects convective non-homogeneous flows alumina-based pure water Al2O3-H2O over a horizontal flat surface an electromagnetic actuator (i.e., Riga pattern, which is embedded geometrically Darcy-Forchheimer porous medium. Further, nanofluid model formulated realistically under umbrella renovated two-phase Buongiorno's approach with inclusion Brownian motion thermophoresis diffusive phenomena, vertical component nanoparticles' flux tend vanish at limiting contact due its impermeability trend. For streamlining technical handling problem, governing partial differential equations (PDEs) are simplified mathematically adopting physical approximations boundary layer theory then transformed into structure ordinary (ODEs) based on several similarity changes. Methodologically, resulting nonlinear coupled ODEs solved numerically via validated quadrature procedure. Besides, generated graphical demonstrations show that temperature enhanced significantly porosity factors, loading, heating strength, process. However, factors loading exhibit slowing-down impact motion. Usefully, it revealed from obtained GDQM - NRT datasets express important improvement strength viscous drag forces, whereas induced field shows reverse frictional impact.

Language: Английский

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Thermally Dissipative Flow and Entropy Analysis for Electromagnetic Trihybrid Nanofluid Flow Past a Stretching Surface

ACS Omega, Journal Year: 2022, Volume and Issue: 7(37), P. 33432 - 33442

Published: Sept. 2, 2022

The growth of hybrid nanofluids can be connected to their enhanced thermal performance as pertains the dynamics automobile coolant among others. In addition that, characteristics water-based carrying three different types nanoparticles are incredible. Keeping in view this new idea, current investigation explores ternary nanofluid flow over a stretching sheet. Joule heating and viscous dissipation addressed heat equation. Three distinct kinds nanoparticles, namely, magnesium oxide, copper, MWCNTs, suspended water form with combination MgO-Cu-MWCNTs-H2O. To stabilize nanofluid, transverse magnetic electric fields have been considered fluid model. production entropy has analyzed for modeled problem. A comparative study ternary, hybrid, traditional also carried out by sketching statistical charts. equations that govern problem shifted dimension-free format employing transformable variables, then they solved homotopy analysis method (HAM). It revealed work opposes parameter supports field volumetric fraction while profiles gained growing values these parameters. Boosting field, parameters, Eckert number support Bejan oppose entropy. Statistically, it established higher conductivity than or nanofluids.

Language: Английский

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Peristaltic pumping of Boron Nitride-Ethylene Glycol nanofluid through a complex wavy micro-channel under the effect of induced magnetic field and double diffusive

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Feb. 14, 2023

The main objective of this work is to present a comprehensive study that scrutinize the influence DD convection and induced magnetic field on peristaltic pumping Boron Nitride-Ethylene Glycol nanofluid flow through vertical complex irregular microchannel. Experimental showed created by suspending Nitride particles in combination Ethylene exhibited non-Newtonian characteristics. Further, Carreau's fluid model provides accurate predictions about rheological properties BN-EG nanofluid. In order imitate complicated wave propagation conditions, sophisticated waveforms are forced at walls. essential Brownian motion thermophoresis phenomena also included simulating heat equation as well viscous dissipation. Mathematical simulation performed utilizing lubrication approach. resulting nonlinear coupled differential system solved numerically using built-in command (ND Solve function) Mathematica program. Numerical pictorial evidence used illustrate importance various physiological features quantities. major findings demonstrated thermal resistance observed rise Soret Dufour numbers increase, while dissolvent concentration nanoparticles volume fraction have opposite effect.

Language: Английский

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Electro-magnetic radiative flowing of Williamson-dusty nanofluid along elongating sheet: Nanotechnology application

Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 16(5), P. 104698 - 104698

Published: Feb. 23, 2023

The flowing of nanomolecules in Williamson nanoliquids via a stretched sheet has significant influence, and its demand the manufacturing, therapeutic disciplines, medication, cooking supplies is enormous frequently reported. However, 2-dimensional (2-D) combined convective Williamson-dusty nanofluid (WDNF) stretchable presence magneto force porous medium remains unidentified. Hence, this report inspects influence Brownian thermophoretic diffusion preserved WDNF modeling occurrence radiative flowing. Runge-Kutta Fehlberg approach (RKFA) used to numerically study problem an ordinary differential system employing shooting techniques. table also addresses frictional factor, heat, mass transmission rate, as well validates current findings with earlier available results scheduled manner. acquired outcomes demonstrate that larger magnetic field decreases rapidity thickening impetus boundary layer nanofluids. momentum dust parameter fluid interaction are shown enhance heat rate. temperature fields liquid dusty phases improved radiation was raised on contrary magnetism which causes dwindling two phases. Consequently, examined model's transference reduced opposite direction Weissenberg number by force. Additionally, it found higher thermophoresis parameters show increasing trend for both

Language: Английский

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Numerical inspection of two-dimensional MHD mixed bioconvective flows of radiating Maxwell nanofluids nearby a convectively heated vertical surface

Waves in Random and Complex Media, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 22

Published: Feb. 16, 2023

The non-homogeneous aspect and dynamical feature of a radiating mixture an upper-convected Maxwell nanofluid gyrotactic motile microorganisms are revealed numerically in this investigation during its two-dimensional mixed convective motion nearby convectively heated vertical surface uniform magnetic field source. Based on relevant physical mathematical backgrounds, the conservation laws (i.e. equations continuity, momentum, heat balance, solid nanoparticles’ concentration, microorganisms’ concentration) monitoring present flow problem derived appropriately form partial differential equations. By making use specific transformations rearrangements, these converted thereafter into gigantic structure first-order ordinary executing computationally appropriate bvp4c subroutine, resulting boundary layer handled accordingly for well-defined constraints. Afterward, computing unitless characteristics velocity, temperature, skin friction coefficient, Nusselt's number, Sherwood's transfer rate) discussed exhaustively via graphical tabular illustrations. As prominent outcomes, it is demonstrated that Joule's heating effect Lorentz's forces exhibit enhancing influence mass transport phenomena within nanofluidic medium with dissimilar impact.

Language: Английский

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