Thermal stability and slip effects in micropolar nanofluid flow over a shrinking surface: A numerical study via Keller box scheme with block-elimination method DOI Creative Commons
Tasawar Abbas,

Sami Ullah Khan,

Munazza Saeed

et al.

AIP Advances, Journal Year: 2024, Volume and Issue: 14(8)

Published: Aug. 1, 2024

The slip flow of nanofluids has engaged potential applications in different engineering processes, including oil recovery, aerodynamics, microfluidic and chip devices, lubrication tribology, environmental engineering. Following such motivated mind, the objective current analysis is to incorporate multiple effects micropolar due a shrinking surface. velocity, thermal, concentration are endorsed analyze flow. Insights into heat transfer subject radiative phenomenon. stability defined problem been performed. developed dimensionless form solved with help Keller box scheme. accuracy solution confirmed available research data. implementation technique leads solutions. Physical justification presented for each parameter. It observed that dual solutions exist specific numerical values involved parameters problem. A reduction fluid velocity noticed micro-rotational profile declined micro-rotation Furthermore, enhances Brownian thermophoresis parameters.

Language: Английский

Irreversibility and thermal performance of nonlinear radiative cross-ternary hybrid nanofluid flow about a stretching cylinder with industrial applications DOI
D.K. Mohanty,

Ganeswar Mahanta,

Sachin Shaw

et al.

Powder Technology, Journal Year: 2023, Volume and Issue: 433, P. 119255 - 119255

Published: Dec. 9, 2023

Language: Английский

Citations

78
Impact of nanoparticle shape on entropy production of nanofluid over permeable MHD stretching sheet at quadratic velocity and viscous dissipation DOI Creative Commons
Khadija Rafique, Zafar Mahmood, S. Saleem

et al.

Case Studies in Thermal Engineering, Journal Year: 2023, Volume and Issue: 45, P. 102992 - 102992

Published: April 10, 2023

The goal of this study was to determine the effect that NP shape has on entropy produced by Al2O3−H2O nanofluid across a permeable MHD stretching sheet under conditions quadratic velocity, thermal radiation, and viscous dissipation. H2O is cold fluid, while nanofluid, which includes five various forms (oblate spheroid, platelet, blade, brick, cylinder), hot fluid. Nanofluid containing sees widespread use in industrial production because its remarkable capacity boost heat transfer. Via sequence similarity transformations, controlling PDEs are converted into nonlinear differential system linked ODEs. An efficient implementation Runge-Kutta method for getting numerical solutions may be found code, written MATLAB. As φ grows from 0% 2% or 4%, wall shear stress rises roughly 6.3% 12.6%, respectively, area behind stretched sheet. Including magnetic boundary layer flow at rate around 5%, convective transfer increases about 16.4%. In comparison nanofluids brick-, blade-, cylinder-, platelet-shaped NPs, Os-shaped experiences greater increase fluid side.

Language: Английский

Citations

57
Numerical thermal study of ternary nanofluid influenced by thermal radiation towards convectively heated sinusoidal cylinder DOI Creative Commons
Kamel Smida,

Adnan Abbasi,

Muhammad Umer Sohail

et al.

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

Citations

54
Parametric simulation of hybrid nanofluid flow consisting of cobalt ferrite nanoparticles with second-order slip and variable viscosity over an extending surface DOI Creative Commons
Saqib Murtaza, Poom Kumam, Muhammad Bilal

et al.

Nanotechnology Reviews, Journal Year: 2023, Volume and Issue: 12(1)

Published: Jan. 1, 2023

Abstract This study explores the unsteady hybrid nanofluid (NF) flow consisting of cobalt ferrite (CoFe 2 O 4 ) and copper (Cu) nano particulates with natural convection due to an expanding surface implanted in a porous medium. The Cu CoFe nanoparticles (NPs) are added base fluid water synthesize NF. effects second-order velocity slip condition, chemical reaction, heat absorption/generation, temperature-dependent viscosity, Darcy Forchheimer also assessed present analysis. An ordinary differential equation system is substituted for modeled equations problem. Further computational processing performed using parametric continuation method. A validation accuracy comparison Matlab package BVP4C. Physical constraints used presenting reviewing outcomes. With increase condition rates mass transition significantly variation Fe NPs. findings suggest that uses fluids might be useful aerodynamic extrusion plastic sheets polymer sheet from dye.

Language: Английский

Citations

53
Impact of suction with nanoparticles aggregation and joule heating on unsteady MHD stagnation point flow of nanofluids over horizontal cylinder DOI Creative Commons
Basim M. Makhdoum, Zafar Mahmood, Umar Khan

et al.

Heliyon, Journal Year: 2023, Volume and Issue: 9(4), P. e15012 - e15012

Published: March 31, 2023

Significance of studyNanofluids with aggregation effects mediated by nanoparticles, like geothermal panels and crossflow heat exchangers, ignite new industrial interests. Polymer conversion processes have transport phenomena in the stagnation zone that must be continuously improved to raise process quality standard.Aim studyHence, current computational study examines a TiO2−C2H6O2 nanofluid's unsteady stagnation-point flow performance via shrinking horizontal cylinder. In addition, magnetic field, joule-heating viscous dissipation, nanoparticles mass suction on boundary layer are reflected.Methodology: The RK-IV shooting method is applied resolve simplified mathematical model numerically computing software MATHEMATICA. certain circumstances, comparing prior findings indicates good agreement relative error around 0%.FindingsThe implementation transfer operation may increasing settings. Unsteadiness, nanoparticle volume fraction, magnetic, curvature, Eckert number (implies operating Joule heating dissipation) all influence rate. velocity temperature profiles both increase as unsteadiness, fraction parameters increase, whereas curvature show opposite behavior. When values were changed from 2.0 2.5 φ = 0.01, rates rose 4.751%. A comparison shows has better profile, while without profile.

Language: Английский

Citations

50
Mechanism of heat transfer in Falkner–Skan flow of buoyancy-driven dissipative hybrid nanofluid over a vertical permeable wedge with varying wall temperature DOI
Subhajit Panda, Surender Ontela, Thirupathi Thumma

et al.

Modern Physics Letters B, Journal Year: 2023, Volume and Issue: 38(01)

Published: Aug. 14, 2023

Heat transport issues of wedge-shaped flow on hybrid nanofluids are special significance by reason their importance in manufacturing uses including heat exchangers solar panels, electronic equipment cooling, drying processes, and air heaters. Consequently, the current investigation investigates behavior dissipative Single-walled Carbone nanotubes (SWCNT) — Multi-walled Carbon (MWCNT) nanofluid buoyant towards a radiative vertical permeable wedge subjected to variable wall temperature considering source/sink. By selecting appropriate similarity conversions, resultant regulating nonlinear boundary layer PDEs subsequently transformed into coupled ODEs. After that, Boussinesq approximations numerically resolved. The significant outcome is which higher for linear radiation, volume fraction, uniform source parameters. momentum controlled with angle fraction nanotube particles. upsurged mixed convection parameters an assisting flow. Changes Nusselt number fluid rate measured flow-controlling Furthermore, results compared effectively validated previously reported literature results.

Language: Английский

Citations

47
Numerical investigation of non-transient comparative heat transport mechanism in ternary nanofluid under various physical constraints DOI Creative Commons

Adnan Abbasi,

Waseem Abbas, Sayed M. Eldin

et al.

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

Citations

46
Impacts of nanoscaled metallic particles on the dynamics of ternary Newtonian nanofluid laminar flow through convectively heated and radiated surface DOI Creative Commons
Walid Aich,

Adnan Abbasi,

Waseem Abbas

et al.

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 53, P. 103969 - 103969

Published: Jan. 1, 2024

Heat transfer study influenced by various physical effects like thermal radiations, convective heat condition and slip is one of the influential research domain specifically in applied chemical engineering. Therefore, key purpose this to develop discuss performance ternary nanofluid model including above mentioned parameters. The developed for laminar flow about stagnation point over a cylinder's surface. Use similarity transforms, properties nanofluids particles are exercised obtain final model. Then, RK-scheme implemented demonstration results provided detailed discussion. It noticed that λ=0.1,0.2,0.3,0.4, nanoliquid movement boosted λ=−0.1,−0.2,−0.3,−0.4 control motion MBLT (Momentum Boundary Layer Thickness) diminishes saddle case. Increasing transient A1=0.05,0.10,0.15,0.20 causes quite rapid fluid molecules. Further, it observed (α1=0.1,0.2,0.3,0.4), surface convection Bi=0.1,0.2,0.3,0.4 radiations good aspects enhance transfer. Also, decrease boundary layer observed. For composite φ=2.0%, density increases as 105 %(nano), 129 %(hybrid), 145 %(ternary), dynamic viscosity 105.18 113.503 122.483 conductivity 106 115.5 131.71 %(ternary) capacity diminishes.

Language: Английский

Citations

23
Investigation of entropy generation in the existence of heat generation and nanoparticle clustering on porous Riga plate during nanofluid flow DOI
Zafar Mahmood, Khadija Rafique,

Adnan Abbasi

et al.

Materials Today Communications, Journal Year: 2024, Volume and Issue: 38, P. 108165 - 108165

Published: Jan. 20, 2024

Language: Английский

Citations

20
MHD flow of nanofluid over moving slender needle with nanoparticles aggregation and viscous dissipation effects DOI Creative Commons
Bilal Ali, Sidra Jubair,

Dowlath Fathima

et al.

Science Progress, Journal Year: 2023, Volume and Issue: 106(2)

Published: April 1, 2023

The study of boundary layer flows over an irregularly shaped needle with small horizontal and vertical dimensions is popular among academics because it seems to have a lot uses in fields as different bioinformatics, medicine, engineering, aerodynamics. With nanoparticle aggregation, magnetohydrodynamics, viscous dissipation all playing role the flow heat transmission axisymmetric TiO2-C2H6O2 nanofluid via moving thin needle, this article provides guidance on how employ for purpose. In case, we utilized similarity transformation change dimensional partial differential equation into dimensionless ordinary equation. We utilize MATHEMATICA include shooting using RK-IV methods after identifying numerical issue. Several characteristics were measured, leading discovery broad variety values things like skin friction coefficients, Nusselt numbers, velocity profiles, temperature distributions. Velocity profile decreases increasing ϕ,M,e increases against ε. Temperature profiles enhances ϕ,M,e,ε, Ec. reduction between fluid can be observed when M ϕ are boosted. Furthermore, was also noticed increase transfer surface dramatically ϕ,e, raised, whereas Ec displayed opposite effect. findings current compared prior particular instance order confirm findings. Excellent agreement two sets results found.

Language: Английский

Citations

43