Analysis of natural convection heat transfer in a rectangular cavity with discrete heat flux: Implications for building thermal management using artificial neural networks DOI

Kamel Rachedi,

Haroun Ragueb, Dounya Behnous

et al.

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

Published: Aug. 9, 2024

This study numerically investigates free convection within a rectangular air-filled cavity, simulating real-romm conditions. The top, bottom, and one sidewall are at constant temperatures, while the opposite has discrete heat flux, akin to heater appliances. impact of heating intensity, length, position on temperature distribution is explored. Artificial Neural Networks (ANN) utilized correlate average Nusselt number, providing model for engineering applications in building thermal management. dataset includes 2436 simulation runs with varying parameter: Rayleigh number (103 106), aspect ratio (0.5 2), surface length (0.1 1), elevation (0.05 0.95). Results show increased numbers intensify stream function promote uniform distribution. influences distribution, placement closer floor or ceiling optimizing transfer. ANN modeling predicts high precision (±3%).

Language: Английский

Computational analysis for bioconvection flow of nanofluid along a bidirectional surface containing gyrotactic microorganisms embedded in a Darcy-Forchheimer porous medium DOI Creative Commons

Aamir Hamid,

Urwah Mehtab,

Nafeesa Farooq

et al.

International Journal of Thermofluids, Journal Year: 2025, Volume and Issue: 26, P. 101059 - 101059

Published: Jan. 8, 2025

Language: Английский

Citations

2
Predicting nanofluid behavior in inflamed stenotic arteries: a neural network and finite element-Based analysis DOI

Yasir Ul Umair Bin Turabi,

Ahmad Shafee,

Shams Ul Islam

et al.

Computer Methods in Biomechanics & Biomedical Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 21

Published: Jan. 21, 2025

This study examines heat transfer and nanofluid-enhanced blood flow behaviour in stenotic arteries under inflammatory conditions, addressing critical challenges cardiovascular health. The blood, treated as a Newtonian fluid, is augmented with gold nanoparticles to improve thermal conductivity support drug delivery applications. A hybrid methodology combining finite element method (FEM) for numerical modelling artificial neural networks (ANN) stability prediction provides robust analytical framework. Parametric analysis reveals that increasing stenosis severity (60% 80%) results 45% enhancement transfer, demonstrating the efficacy of nanoparticle integration. show size vortices decreases due position changing upper stenoses, whereas it rises peak. Higher volume fraction (ϕ) amplifies momentum diffusion, resulting larger vortices, while improved enhances transfer. Inflammation significantly affects patterns transport important implications treating disorders biological regression confirms close match between predicted target data, showcasing robustness FEM-ANN approach biofluid systems.

Language: Английский

Citations

2
Impact of Heated Wavy Wall and Hybrid Nanofluid on Natural Convection in a Triangular Enclosure with Embedded Cold Cylinder under Inclined Magnetic Field DOI
Shahzad Munir,

Yasir Ul Umair Bin Turabi

Arabian Journal for Science and Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 23, 2024

Language: Английский

Citations

8
Computational analysis of heat transfer for hybrid nanofluid flow within a wavy lid-driven cavity with entropy generation and non-uniform heating DOI Creative Commons

Muhammad Fawad Malik,

Yasir Ul Umair Bin Turabi,

Mohsan Raza

et al.

Results in Physics, Journal Year: 2024, Volume and Issue: unknown, P. 108054 - 108054

Published: Nov. 1, 2024

Language: Английский

Citations

5
Numerical computations of MHD Mixed Convection flow of Bingham fluid in a Porous Square Chamber with a Wavy Cylinders DOI Creative Commons
Inayat Ullah, Muhammad Shoaib Arif, S. Nadeem

et al.

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: unknown, P. 100938 - 100938

Published: Oct. 1, 2024

Language: Английский

Citations

4
Numerical Framework for Investigating MHD Heat and Mass Transfer in Nanofluid Flow over 2-D boundary layers in a porous medium : A Variation of Parameters Method Approach DOI Creative Commons
Farooq Ahmed Shah, Alexey Mikhaylov, Ehsan Ul Haq

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 25, P. 103547 - 103547

Published: Dec. 6, 2024

Language: Английский

Citations

4
Entropy generation effects with heat and mass transfer characteristics through staggered enclosure DOI
Hassan Waqas,

Shamila Khalid,

Md. Jahid Hasan

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

A growing interest in researching mixed convective flow with the magnetic field has been seen recently. Numerous researchers have focused on problems related to within cavities or enclosures, considering various parameters and conditions. However, there seems be a lack of research that incorporates Casson fluid staggered cavity study heat mass transfer entropy generation. So, this work we tried conduct numerical investigation evaluate characteristics thermal performance transport under influence magnetohydrodynamic conditions different inclination angles using fluid. The characteristic features are examined through non-dimensional such as Hartmann number (Ha), Lewis (Le), angle (γ), Reynolds (Re), (β). findings shown graphical representations, isotherm, isoconcentration, streamlines. average Nusselt Sherwood plotted for concentration temperature gradient values Re, Ha, number. Key include 37.4% increase 41.8% Re increases from 10 1000. Similarly, generation is maximized at 90° inclination, while rates decline by approximately 20% higher Ha. It found γ can amplify phenomenon distribution, opposite trend Ha β. Added that, decreases growth cavity. Entropy both constant numbers.

Language: Английский

Citations

0
Magnetohydrodynamic Non‐Newtonian Fluid Flow, Heat and Mass Transfer in a Porous Channel With Stretching Walls Under the Influence of Thermophoresis, Brownian Motion, and Radiation DOI Open Access

M. N. Pooja,

S. K. Narasimhamurthy,

Kuppalapalle Vajravelu

et al.

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

Published: March 23, 2025

ABSTRACT This study explores the magnetohydrodynamic flow of a non‐Newtonian fluid, along with heat and mass transfer dynamics, within porous channel stretching walls. The analysis incorporates effects thermophoresis, Brownian motion, radiation to comprehensively evaluate their influence on system. governing nonlinear partial differential equations are transformed into ordinary through an appropriate similarity transformation. These subsequently solved using semi‐numerical Differential Transform Method. To validate accuracy DTM, computed results for skin friction, Nusselt number, Sherwood number meticulously examined graphical visualizations tabular comparisons numerical solutions. Additionally, residual squared error is conducted further confirm precision employed method. findings indicate that increasing motion thermophoresis parameters leads pronounced enhancement in thermal profiles, while concentration profiles exhibit distinct contrasting trends. Notably, 400% increase these 37.73% rate 27.06% improvement rate. insights gained from this hold significant potential biomedical engineering applications, particularly understanding blood behavior arteries. provide valuable implications examining vessel wall deformations caused by pulsatile fluctuations pressure, offering foundation advancements physiological fluid dynamics.

Language: Английский

Citations

0
Entropy Generation and Magnetohydrodynamic Influences on Hybrid Nanofluid Convection in a Staggered Cavity DOI Creative Commons

Yasir Ul Umair Bin Turabi,

Shahzad Munir, Rab Nawaz

et al.

International Journal of Thermofluids, Journal Year: 2025, Volume and Issue: unknown, P. 101204 - 101204

Published: April 1, 2025

Language: Английский

Citations

0
Impacts of sinusoidal heat flux and embraced heated rectangular cavity on natural convection within a square enclosure partially filled with porous medium and Casson-hybrid nanofluid DOI Creative Commons

Anil Ahlawat,

Mukesh Kumar Sharma, Kaouther Ghachem

et al.

Open Physics, Journal Year: 2025, Volume and Issue: 23(1)

Published: Jan. 1, 2025

Abstract In the current research, influence of a sinusoidal heat flux and heated rectangular cavity in partially porous Casson hybrid nanofluid-filled square enclosure being affected by constant magnetic field imposed x -direction having magnitude B 0 , on natural convection were investigated numerically. A width H /5 height /2 was positioned middle enclosure. The length is centrally at enclosure’s bottom wall, although top wall lower temperature, say T c, rest insulated. finite-difference method, combined with successive over relaxation, under Gauss–Siedel techniques, employed to address challenge solving nonlinear coupled governing partial differential equations motion energy. Numerical calculations carried out using values relevant parameters range ≤ \le Ha 15, 10 4 \hspace{1em} Ra 6 0.00 ϕ mathvariant="normal">hnf 0.04 0.00\le {{\rm{\phi }}}_{{\rm{hnf}}}\le 0.04 −5 mathvariant="normal">Da {\rm{Da}} −3 0.1 γ \gamma 1, N 12. Kirpichev number ( K i = 1 {K}_{i}=1 ) Prandtl (Pr = 6.26) are fixed throughout study. Contour plots for isotherms streamlines plotted ascertain impacts distinct factors them. results this investigation suggest that transfer rate rises as }}}_{{\rm{hnf}}} Ra, rise reduce rises. Finally, it has been observed decreasing cavity’s aspect ratio leads substantial enhancement from both cavity.

Language: Английский

Citations

0