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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Analysis of Error and Stability of Nanofluid over Horizontal Channel with Heat/Mass Transfer and Nonlinear Thermal Conductivity

Mathematics, Journal Year: 2023, Volume and Issue: 11(3), P. 690 - 690

Published: Jan. 29, 2023

The current investigation aims to analyze the nanofluid flow between two infinite rotating horizontal channels. lower plate is porous and stretchable. impact of physical parameters such as Hall current, thermal characteristics, heat source/sink, chemical reaction on velocity, temperature, concentration profiles are discussed through graphs. governing equations transformed ordinary differential using suitable transformations then solved numerically RK4 approach along with shooting technique. For varying values Schmidt number (SN) factor (CRF), profile declines, but decreases for activation energy. It observed that velocity declines increasing suction factor. increases when rotation factors increased. temperature field exhibits a rising behavior thermophoresis factor, Brownian motion, radiation also transfer rate significant at wall Prandtl (PN). numerical solution, error estimation residue calculated stability confirmation mathematical model. novelty present work investigate irregular source over channel. A growing performance revealed by field, increase in motion (BM), (TF), conductivity (TCF), (RF).

Language: Английский

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Towards a novel EMHD dissipative stagnation point flow model for radiating copper-based ethylene glycol nanofluids: An unsteady two-dimensional homogeneous second-grade flow case study

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 45, P. 102914 - 102914

Published: March 23, 2023

A novel EMHD dissipative second-grade nanofluid flow model is proposed exclusively in this numerical inspection for radiating copper-based ethylene glycol nanofluids to reveal the dynamical and thermal aspects of studied homogeneous mixture during its unsteady two-dimensional stagnation point towards a horizontal electromagnetic actuator. Based on admissible physical assumptions authenticated experimental correlations, governing PDEs BCs are derived appropriately problem under consideration. After numerous rearrangements non-dimensionalization treatments, resulting ODEs handled computationally with help robust GDQ algorithm parametric control several influencing factors, whose strengthening magnitudes affect probably process heat transport mechanism. In context, it proved graphically that nanoparticles' loading exhibits dissimilar impacts as compared influences diameter size. Besides, resistive effect utilized actuator reinforces thermally enhancing role radiative flux Joule's heating within nanofluidic medium.

Language: Английский

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Solutal effects on thermal sensitivity of casson nanofluids with comparative investigations on Newtonian (water) and non-Newtonian (blood) base liquids

Alexandria Engineering Journal, Journal Year: 2023, Volume and Issue: 71, P. 387 - 400

Published: March 28, 2023

In recent years nanoparticles have been widely used in medicines and pharmaceuticals because of their special mechanical, optical, electrical behaviors, which affect significantly the convective nature blood liquid. The present work studies impact on thermosolutal sensitivity non-Newtonian fluid flow numerical computations are made using as a base Binary features included formulation problem through solutal variables Casson model, respectively. An efficient simple methodology is applied to set equations an initial state solution obtained further perturbed slightly leading realistic expression Rayleigh number function thermophysical characteristics system. To capture complete essence problem, comparative study also performed by taking (non-Newtonian)/water (Newtonian) liquids for thermal/thermosolutal cases metallic/non-metallic results some key observations not yet established literature. Thermosolutal instability dominated effects makes system highly sensitive, while parameter stabilizes liquid its higher value, layer increases.

Language: Английский

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The significant role of Darcy–Forchheimer and thermal radiation on Casson fluid flow subject to stretching surface: A case study of dusty fluid

Modern Physics Letters B, Journal Year: 2023, Volume and Issue: 38(06)

Published: Sept. 22, 2023

This paper addresses the problem of steady two-dimensional magnetohydrodynamics (MHD) migration dusty fluid across a stretching sheet with inclusion Darcy–Forchheimer porosity and Brownian dispersion. The most significant aspect ongoing is elaborating entire context phases. governing partial differential equations (PDEs) are transmuted into non-dimensional ordinary (ODEs) by implementing similarity transformations. MATLAB script has used bvp4c strategy to accumulate visualization computational observations. Also, this study illustrates an assessment effects parameters on non-Newtonian fluids phase. It observed that thermal boundary layer enhanced increasing strength mass concentration granules ([Formula: see text]) Eckert number (Ec) for both scenarios, while in case interaction temperature parameter scenario opposite Moreover, heat transfer rate intensifies effect radiation, magnetic field. variations various physical quantities represented through tabular graphs.

Language: Английский

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Numerical Crank-Nicolson methodology analysis for hybridity aluminium alloy nanofluid flowing based-water via stretchable horizontal plate with thermal resistive effect

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 42, P. 102707 - 102707

Published: Jan. 5, 2023

Hybrid nanofluid (HNF) is a new and improved type of models that widely employed in fluid flow regimes to increase thermal efficiency. The purpose this effort investigate HNF two dimensions over horizontal sheet while accounting for the effects Joule heating, viscous dissipation, suction, slip. impact regulating parameters on skin friction heat transfer also investigated. used investigation mixture water types solid nanoparticles, namely aluminium alloys AA7072 AA7075. numerical solutions partial differential equations are obtained using Crank-Nicolson method. outcomes illustrated detailed ranges connection parameters. slip effect diminishes temperature outline from system wall temperature. Shrinking movement plays key role manipulating fluidity dispersal. Magnetic strength pulls down meanwhile, it assists dispersion, fractional force, Nusselt number.

Language: Английский

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Analysis of buoyancy assisting and opposing flows of colloidal mixture of titanium oxide, silver, and aluminium oxide nanoparticles with water due to exponentially stretchable surface

Arabian Journal of Chemistry, Journal Year: 2023, Volume and Issue: 16(4), P. 104550 - 104550

Published: Jan. 10, 2023

Energy is essential for a nation's economic growth. recognized in contemporary society as being crucial to the development of quality life and sustainability. The environment transforms/absorbs heat sunlight variety ways. Some these transitions lead flow renewable energy sources like wind biomass. Solar has become one promising alternative future because improvements made enhance its performance. In this context, impact solar radiation on modified nanofluid over an exponential stretching sheet examined. Using proper similarity transformations, governing equations assumptions are reduced ordinary differential equations. numerical simulation simplified then performed using Runge-Kutta Fehlberg method shooting methodology. With aid graphs tables, effects numerous parameters involved fields described. Results reveal that nano liquid shows increased transport opposing situation than assisting incremented values porosity parameter volume fraction. nanoliquid with respect augmented parameter.

Language: Английский

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Parametric simulation of stagnation point flow of motile microorganism hybrid nanofluid across a circular cylinder with sinusoidal radius

Open Physics, Journal Year: 2023, Volume and Issue: 21(1)

Published: Jan. 1, 2023

Abstract The article explores the three-dimensional stream of silver (Ag), magnesium oxide (MgO), and motile microorganism water-based hybrid nanofluids as independent time through a circular cylinder with sinusoidal radius. goal this research is to optimize rate energy mass transfer having periodic phenomena are simulated system partial differential equations containing momentum, temperature, concentration, profile microbes, which were then simplified dimensionless ordinal using similarity technique. problem solved by parametric continuation method, numerical methodology. From analysis, it has been perceived that both velocity fields significantly enhance rising effect nanoparticles (Ag–MgO). chemical reaction enhances transition because parameter influence exercises molecules inside fluid. outline elevated increment Lewis Peclet number.

Language: Английский

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Unsteady non-axisymmetric MHD Homann stagnation point flow of CNTs-suspended nanofluid over convective surface with radiation using Yamada–Ota model

International Journal of Modern Physics B, Journal Year: 2023, Volume and Issue: 37(27)

Published: July 27, 2023

The increasing number of ways in which carbon nanotubes (CNTs) may be used business and technology has led to an explosion interest these tiny tubes. As a result, the Yamada–Ota model is investigate unsteady, non-axisymmetric MHD Homann stagnation point passing over convective surface with nonlinear radiation. Consisting single-walled multi-walled that are suspended water (H 2 O). length nanomaterial between [Formula: see text] nanometers, while its radius text]. method similarity transformation altered so it get dimensionless system differential equations from mathematical envisioned for PDEs. After that, approximate solutions obtained using MATHEMATICA Shooting RK-IV technique. In this paper, we provide graphical discussion physical interpretation results measures practical significance as function key factors. indicated increase volume fraction corresponding rise heat transfer rate. However, reduced by magnetic energy supplied it. Carbon nanoliquids single wall have greater melting than multiple walls. Industrial technological uses issue under examination span several fields, including aviation health. interface velocity rate at surface, well solution each profile, shown graphically, along analysis effects on flow characteristics fluid influence

Language: Английский

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Impact of activation energy and variable properties on peristaltic flow through porous wall channel

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

Published: Feb. 24, 2023

Abstract The current study discusses the peristaltic flow of Jeffrey fluid through a porous wall channel. Magnetohydrodynamic (MHD) effects are also considered while formulating problem. Heat and mass transfers discussed in presence activation energy constant heat source/sink effects. A chemical reaction is part analysis. Lubrication approach adopted for simplification resulting non-linear equations. MATHEMATICA command, NDSolve, used to discuss results graphically various parameters like Hartman number $$(M)$$ (M) , porosity parameter $$(k)$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">(k) slip ( $$\gamma ,{\gamma }_{1},{\gamma }_{2}$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">γ,γ1,γ2 ), Schmidt $$(Sc)$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">(Sc) Soret $$(Sr)$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">(Sr) Prandtl $$(Pr)$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">(Pr) numbers, many others. Parabolic behavior velocity sinusoidal nature transfer pressure gradient noticed. Results indicate that greatly affected by varying values γ ′ s ) $$(H)$$ xmlns:mml="http://www.w3.org/1998/Math/MathML">(H) . Enhancing viscoelastic causes an increase velocity. Similar noticed temperature profiles. decreasing trend shown concentration when value ratio enhanced. Thus, presented analysis can be human physiological systems especially, blood flow. Since Jeffrey's exhibits same characteristics as observed blood.

Language: Английский

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