Unsteady Flow of Hybrid Nanofluids Subjected to a Stretching/Shrinking Sheet with Heat Generation DOI Creative Commons

Noorina Abdul Rahman,

Najiyah Safwa Khashi’ie, Iskandar Waini

et al.

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, Journal Year: 2024, Volume and Issue: 116(2), P. 59 - 74

Published: May 4, 2024

This work highlights the thermal progress and flow characteristics of various hybrid nanofluids (graphene-alumina/water copper-alumina/water) over a stretching/shrinking sheet with heat generation suction effects using numerical approach. study is important in identifying physical parameters which beneficial increment progresses. The control model (partial differential equations) established based on boundary layer assumptions then transformed into set ordinary (similar) equations. A solver MATLAB software called bvp4c used to compute solutions by first transforming reduced ODEs. There an increase velocity profile decrease rate increased parameter. It observed that between two nanofluids, Cu-Al2O3/H2O nanofluid has larger skin friction coefficient compared Graphene-Al2O3/H2O, makes good option for industrial cooling processes.

Language: Английский

Influence of the magnetic field on Al 2 O 3 -Cu/H 2 O hybrid nanofluid natural convection in a square cavity with heat sources and internal heat generation/absorption DOI

Belkacem Ait taleb,

Adel Sahi,

Messaoud Hamdi

et al.

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 23

Published: May 31, 2024

In view of the growing interest in numerical approach during optimization phase technical projects, this study proposes an in-depth analysis effects several relevant parameters on cooling heat sources, part existing problems field exchangers. The focused a natural convection problem inside square cavity traversed by vertical or horizontal magnetic field. This contains four heating blocks, arranged at uniform distance from each other and different surrounding walls. A hybrid nanofluid, composed aluminum oxide (Al2O3) copper (Cu) particles equal proportions, was considered cavity, imposing it heat-generating heat-absorbing behavior. finite volume method adopted as solving for adimensional governing equations, with SIMPLE algorithm specifically chosen to handle coupling between momentum continuity equations. Numerical results, covering wide range such Rayleigh number, Hartman fraction, internal value well orientations, have been grouped according scenarios provide answers fundamental questions related specific studied. These results shown that increasing flow regime leads transition conductive convective transfer, thus favoring increase exchange up 85% certain scenarios. It is also clear process sources enhanced absorbing behavior nanofluid. Furthermore, (Ha) nanoparticle fraction (ϕhnf) proved be opposites: former has inhibiting effect, while latter stimulates.

Language: Английский

Citations

1
Unsteady Hiemenz Flow of Cu-SiO2 Hybrid Nanofluid with Heat Generation/Absorption DOI Creative Commons

Yap Bing Kho,

Rahimah Jusoh, Mikhail А. Sheremet

et al.

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, Journal Year: 2023, Volume and Issue: 110(2), P. 95 - 107

Published: Dec. 15, 2023

The use of hybrid nanofluid as an alternate heat transfer fluid has shown great potential, and ongoing research to improve its thermal conductivity is important. This study focuses on the impact generation/ absorption unsteady Hiemenz flow aqueous containing copper silica nanoparticles. Mathematical equations for model are derived using suitable similarity transformations solved numerically bvp4c codes in Matlab software. results indicate that increased generation/absorption leads increase both momentum boundary layer thickness. effects suction nanoparticle concentration also analysed presented graphically. Additionally, a stability analysis performed, which discloses first solution produced stable, however, second not. findings this provide valuable insights into behaviour can aid development more efficient fluids various engineering applications.

Language: Английский

Citations

1
Analysis of Solution Stability in Al2O3-Cu/H2O over a Stretching/Shrinking Wedge DOI Creative Commons
Nurul Amira Zainal, Najiyah Safwa Khashi’ie, Iskandar Waini

et al.

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, Journal Year: 2024, Volume and Issue: 111(2), P. 116 - 125

Published: Jan. 8, 2024

In this study, the stability analysis is conducted in order to observe reliability of generated solutions. The influence several parameters taken into consideration including heat source/sink parameter, suction, magnetic field, and transfer. well-known transfer fluid that Al2O3-Cu/H2O hybrid nanofluid past a stretching/shrinking wedge implied. similarity equations are achieved after implying suitable transformation which then needed be solved numerically using bvp4c, embedded MATLAB software. Dual solutions observed along investigation within specified values involved parameters. It important note verification results show excellent concordance with pre-existing reports.

Language: Английский

Citations

0
Numerical Study on the Influence of heat generation and absorption on an incompressible hybrid nanofluid's magnetohydrodynamic (MHD) flow in a thermal system DOI Creative Commons

Abubakar Tafawa Balewa Bauchi.,

A. Hussaini

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: May 6, 2024

Abstract Hybrid nanofluids have been regarded as among the supreme and sophisticated nanofluids, just demonstrated through their heat transfer characteristics well emerging advantages which support determination to accelerate rate of transfer. Discussion dual effects generation/absorption in addition thermal radiation over hybrid nanofluid is main goal current paper. Using water (H2O) base fluid, metal (Cu) oxide (Al2O3) nanoparticles are combined. The purpose generation absorption improve efficiency transport sensation. necessary controlling partial differential equations converted into dimensionless forms ordinary using appropriate similarity modifications. transformed solved fourth order Runge-Kutta shooting technique find solutions problem. For effect different shape factors on solution profiles momentum, temperature Nusselt quantity, numerical results presented tabulated data graphical system. revealed that momentum a decreasing function with Radiation Parameter Rd, Temperature also functions Eckert number Ec likewise Prandtl Pr Suction/ injection S. profile fluctuates case Heat generation/ parameter, Parameter, parameters simultaneously.

Language: Английский

Citations

0
Unsteady Flow of Hybrid Nanofluids Subjected to a Stretching/Shrinking Sheet with Heat Generation DOI Creative Commons

Noorina Abdul Rahman,

Najiyah Safwa Khashi’ie, Iskandar Waini

et al.

Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, Journal Year: 2024, Volume and Issue: 116(2), P. 59 - 74

Published: May 4, 2024

This work highlights the thermal progress and flow characteristics of various hybrid nanofluids (graphene-alumina/water copper-alumina/water) over a stretching/shrinking sheet with heat generation suction effects using numerical approach. study is important in identifying physical parameters which beneficial increment progresses. The control model (partial differential equations) established based on boundary layer assumptions then transformed into set ordinary (similar) equations. A solver MATLAB software called bvp4c used to compute solutions by first transforming reduced ODEs. There an increase velocity profile decrease rate increased parameter. It observed that between two nanofluids, Cu-Al2O3/H2O nanofluid has larger skin friction coefficient compared Graphene-Al2O3/H2O, makes good option for industrial cooling processes.

Language: Английский

Citations

0