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

Stability Analysis of Dual Solutions for Nonlinear Radiative Magnetohydrodynamic Flow of Ag−TiO2/H2O Hybrid Nanofluid … DOI
Pradeep Kaswan, Manjeet Kumar, Manjeet Kumari

et al.

Thermal advances., Journal Year: 2024, Volume and Issue: 1, P. 100002 - 100002

Published: Sept. 17, 2024

Citations

11
Optimization of Heat Transfer on Carbon Nanotubes With Exponential Heat Generation and Nonlinear Radiation in Sakiadis and Blasius Flows Over Curved Surface DOI Open Access

K. R. Roopa,

M. V. Govindaraju,

P. A. Dinesh

et al.

Heat Transfer, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 6, 2025

ABSTRACT Engineers and researchers in the field of thermal analysis are searching for novel approaches to boost their performance by enhancing characteristics electrical equipment. Non‐Newtonian fluids used technical industrial settings owing high conductivity. In connection with this, present study investigates fluid flow heat transmission a hybrid nanomaterial (carbon nanotubes ferric oxide) over curved surface. The originality this is related examining impact generation nonlinear radiation convective boundary conditions Sakiadis (SF) Blasius (BF). system mathematical relations partial differential equation form changed an ordinary (ODE) using appropriate variables. indeterminate ODEs were solved ODE analyzer, which accessible computer software Maple. graphs demonstrate importance critical factors concerning velocity temperature fields. SF has thinner layer than BF, results more pronounced drop. effects altering physical parameters on Nusselt number optimized through response surface methodology BF SF. affected effects, but shows increased sensitivity wall gradients, indicating distinct optimization each scenario. every situation, nanofluid multiwall carbon oxide exhibits excellent performance. To validate chosen numerical approach, tabular description provided generate comparison.

Language: Английский

Citations

0
A numerical and statistical analysis of the unsteady ternary hybrid nanofluid flow and heat transfer over a generalized stretching/shrinking wall DOI Open Access
Nur Syahirah Wahid, Natalia C. Roșca, Natalia C. Roșca

et al.

ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Journal Year: 2025, Volume and Issue: 105(2)

Published: Feb. 1, 2025

Abstract This study analyzes unsteady ternary hybrid nanofluid flow and heat transfer over a generalized stretching/shrinking wall using both analytical numerical methods. By applying similarity transformations, the governing nonlinear partial differential equations are reduced to system of ordinary equations, which numerically solved MATLAB bvp4c function. We find that exhibits two solution branches—an upper lower—within certain parameter ranges. A detailed stability analysis is conducted determine these solutions. Additionally, presents solutions for specific cases, relevant exchangers in low‐velocity environments. Next, MINITAB software used statistically model interactions parameters assess their impact on performance (measured through local Nusselt number), identifying low, medium, or strong effects regression analysis. Finally, sensitivity performed function obtained MINITAB, focusing key input parameters. To best our knowledge, this novel, as no previous work has explored problem, making results original.

Language: Английский

Citations

0
Thermophoretic particle deposition in thermo-bioconvection flow of diamond-SiC-Co₃O₄/water-based trihybrid nanofluid with oxytactic and gyrotactic microorganisms: biotechnological applications DOI
Ibrahim Mahariq, Riadh Marzouki, Hawzhen Fateh M. Ameen

et al.

Journal of Thermal Analysis and Calorimetry, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Language: Английский

Citations

0
Flow analysis of MHD ternary hybrid nanofluid over a permeable wedge with variable surface temperature and slip effect DOI
Anomitra Chakraborty, Pranitha Janapatla

Numerical Heat Transfer Part A Applications, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 14

Published: May 12, 2024

A comparative flow analysis of a water based- ternary hybrid nanofluid has been studied in this article over moving permeable wedge the presence variable surface temperature. The model developed keeping mind magnetic, velocity slip, buoyancy, and suction effects. primary nanoparticle was Nimonic 80A, Fe3O4 being secondary Graphene Oxide (GO) nanoparticle. velocity, temperature, heat transfer rate, shear drag profiles for various parametric values magnetic parameter (M), ratio (R), slip (h), buoyancy (γ) (S) investigated. MATLAB bvp4c code utilized obtaining numerical results by solving nondimensional differential equations obtained using similarity transformations. All graphs were formulated after positive outcome our with that available existing literature. An increase (h) (R) resulted an local Nusselt number while reverse trend observed temperature skin friction profiles. Also, faced 0.09% increment M=0.4 to M=0.8. present study finds its extensive applications medical industries, heaters, forging hot exhaust valve heads.

Language: Английский

Citations

2
The pdepe solver for analysing the flow of MHD Cu–H2O nanofluid across an oscillating vertical plate DOI Creative Commons
G. Jithender Reddy, Vinay Kumar, M. Anil Kumar

et al.

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 10, P. 100910 - 100910

Published: Aug. 31, 2024

Language: Английский

Citations

2
Applications of nonlinear thermal radiation on performance of hybrid nanofluid (Al2O3-Ag)/(C2H6O2-H2O) for stagnation point flow: Blade and spherical shaped nanoparticles DOI Creative Commons
Mary Gulumian,

K. Sreelakshmi,

Adnan Abbasi

et al.

Journal of Radiation Research and Applied Sciences, Journal Year: 2024, Volume and Issue: 17(4), P. 101171 - 101171

Published: Nov. 7, 2024

Language: Английский

Citations

2
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