Laminar flow with temperature-dependent fluid properties between two stretching rectangular surfaces DOI

Nicolas Mam Bakalack,

Valjacques Nyemb Nsoga,

Gérémino Ella Eny

et al.

Zeitschrift für Naturforschung A, Journal Year: 2024, Volume and Issue: 79(9), P. 925 - 938

Published: July 27, 2024

Abstract The Navier–Stokes equations and the energy equation are used to investigate a fluid flow between two stretching rectangular surfaces subjected temperature difference that affects dynamic viscosity thermal conductivity of fluid. wall process enhances momentum boundary layer thickness which slows axial motion away from boundaries. When parameter γ is equal 1, case corresponding symmetric stretching, minimum velocity located at midplane channel y = 0.5 if variational α equals 0. This moves towards region < 1 for > 0, but migrates 0 Moreover, in growth Reynolds number Re tends increase around middle ≥ attempt counteract effects enhancing leading flattening profiles 100. While β does not influence enough dynamics heat transfer, Péclet Pé can or decrease distribution inside depending on sign . Practical applications related present study include lubrification, food manufacturing, paint industries, extrusion processes plastic metal industries.

Language: Английский

Impact of suction and thermal radiation on unsteady ternary hybrid nanofluid flow over a biaxial shrinking sheet DOI Creative Commons
Nur Syahirah Wahid, Norihan Md Arifin, Rusya Iryanti Yahaya

et al.

Alexandria Engineering Journal, Journal Year: 2024, Volume and Issue: 96, P. 132 - 141

Published: April 9, 2024

The use of hybrid nanofluids in practical applications is pivotal for enhanced heat transfer efficiency especially electronics cooling, and manufacturing processes. This study delves into numerically investigating the unsteady water-based (alumina+copper+titanium dioxide) ternary nanofluid flow over a permeable biaxial shrinking sheet, considering influence thermal radiation. model, initially formulated as partial differential equations (PDEs), adeptly transformed ordinary (ODEs) via established similarity transformations. Subsequently, numerical solution employing finite difference scheme bvp4c MATLAB unravels behaviors crucial physical quantities—across various parameter configurations. Remarkably, this reveals presence two potential solutions, among which only one exhibits stability. Notably, findings underscore efficacy enlarging boundary suction diminishing radiation augmenting within specified conditions nanofluid. A noteworthy finding that an increase by 4% leads to remarkable 9% delay layer separation nanofluid, thus maintaining laminar phase flow. offers guidance insights researchers practitioners delving mathematical or experimental aspects dynamics.

Language: Английский

Citations

19
Recent advances and developments of the application of hybrid nanofluids in parabolic solar collector energy systems and guidelines for future prospects DOI Creative Commons
Farhan Lafta Rashid, Hakim S. Sultan Aljibori, Hayder I. Mohammed

et al.

Journal of Engineering Research, Journal Year: 2024, Volume and Issue: unknown

Published: May 1, 2024

This study addresses challenges in enhancing the thermal efficiency of parabolic solar collector energy systems using hybrid nanofluids, focusing on issues like nanoparticle clumping and decreased effectiveness. The objective is to optimize design parameters for improved absorption by evaluating performance nanofluids through theoretical experimental analyses, aiming enhance overall systems. was evaluated conducting numerical simulations analyses investigate effects various compositions concentrations. findings suggest that specifically Au-Cu/EO Cu-Al2O3, demonstrate enhanced heat transfer properties comparison conventional fluids, resulting enhancements ranging from 22.44% 35.01%. Compared water, Al2O3/water (0.04%), MWCNT/water collector's improves 197.1%, 69.2%, 6.1%, respectively. Furthermore, research emphasizes potential advantages integrating precise concentrations improve while reducing adverse friction factors. results emphasize significance tackling primary obstacles such as together nanoparticles, heightened demands pumping, elevated expenses manufacture nanofluids. enhances advancement cost-effective efficient identifying limits suggesting alternative solutions. highlights necessity additional investigation into innovative combinations nanomaterials, fine-tuning fluid characteristics, thorough evaluations long-term stability order forward practical use

Language: Английский

Citations

18
ANN-based Two hidden layers computational procedure for analysis of heat transport dynamics in polymer-based trihybrid Carreau nanofluid flow over needle geometry DOI Creative Commons
Adil Darvesh,

Fethi Mohamed Maiz,

Basma Souayeh

et al.

Hybrid Advances, Journal Year: 2025, Volume and Issue: unknown, P. 100396 - 100396

Published: Jan. 1, 2025

Language: Английский

Citations

3
Nanofluids for Advanced Applications: A Comprehensive Review on Preparation Methods, Properties, and Environmental Impact DOI Creative Commons
Izzat Razzaq, Xinhua Wang, Ghulam Rasool

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: 10(6), P. 5251 - 5282

Published: Feb. 3, 2025

Nanofluids, an advanced class of heat transfer fluids, have gained significant attention due to their superior thermophysical properties, making them highly effective for various engineering applications. This review explores the impact nanoparticle integration on thermal conductivity, viscosity, and overall performance base highlighting improvements in systems, such as exchangers, electronics cooling, PV/T CSP technologies, geothermal recovery. Key mechanisms nanolayer formation, Brownian motion, aggregation are discussed, with a focus hybrid nanofluids that show enhanced conductivity. The increase viscosity poses trade-off, necessitating careful control properties optimize while reducing energy consumption. Empirical data up 123% convective coefficients, demonstrating tangible benefits efficiency system miniaturization. also considers environmental impacts nanofluid use, potential toxicity challenges sustainable production disposal. Future research directions include developing specific integrating phase change materials, exploring new nanomaterials metal chalcogenides enhance sustainability management systems.

Language: Английский

Citations

3
Advanced ANN computational procedure for thermal transport prediction in polymer-based ternary radiative Carreau nanofluid with extreme shear rates over bullet surface DOI Creative Commons
Adil Darvesh,

Fethi Mohamed Maiz,

Basma Souayeh

et al.

Applied Rheology, Journal Year: 2025, Volume and Issue: 35(1)

Published: Jan. 1, 2025

Abstract Bullet surface has a significant role in many engineering and industrial sectors, due to its wide fluid-based thermal management systems. The current approach emphasizes heat transfer mechanism flow of ternary hybrid nanofluid over bullet shape geometry. integration infinite shear rate viscosity-based model Carreau explored the predictive capabilities enhanced transport nanofluid. purpose study is seek an advanced that accurately captures prediction under varying conditions rate. By utilizing artificial neural networks (ANNs), aim this simulate analyze how these fluids respond combined effects viscous dissipation, non-uniform sink source, radiation, viscosity when interacting with bullet-shaped physical initially generated set partial differential equations, based on assumption study, then system converted into ordinary equations (ODEs) using similarity transformations. This conversion simplifies more manageable form. resulting ODEs are numerically solved bvp4c method. solutions obtained from process compiled dataset, which used train through ANN. network designed predict solutions. increase velocity magnitude increases for stretching ratio parameter while it decreases location slip parameter. On other hand, temperature profile decreased augmentation numeric values radiation Eckert numbers demonstrates opposite trend generation number magnetic increment highest nanofluids compared nanofluids.

Language: Английский

Citations

2
Rheological aspects of bioconvective flow of radiated ternary hybrid nanofluid toward porous stretched cylinder with activation energy and heat generation DOI
Fazal Haq, Hassan Ali Ghazwani, Mofareh Hassan Ghazwani

et al.

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

Published: Feb. 26, 2025

Language: Английский

Citations

2
Experimental and numerical investigation of parabolic trough solar collector thermal efficiency enhanced by graphene–Fe3O4/water hybrid nanofluid DOI Creative Commons

Asaad Yasseen Al-Rabeeah,

István Seres,

Istvan Farkas

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 101887 - 101887

Published: Feb. 8, 2024

This experimental study discusses and focuses on the working fluid because it is regarded as most important factor influencing parabolic trough solar collector (PTSC) performance. To performance, two identical PTSCs were manufactured to use water graphene (G)–Fe3O4/water hybrid nanofluid (HNF) fluids with different concentrations. The collectors evaluated under same conditions based results that average thermal efficiency deviation between them not exceeding 0.11%. In addition, HNF was prepared, effect of volume concentration temperature viscosity conductivity G–Fe3O4/water studied. Test samples consisting HNFs concentrations 0.01%, 0.05%, 0.1% 0.2% compared at a mass flow rate 2 L/min. According results, TE PTSC improved by using HNF. for G–Fe3O4 obtained 0.2%, 0.1%, 0.05% 0.01% VCs reached 45.46%, 44.3%, 42.04% 41.02%, respectively, while 40.41%. A numerical analysis performance also performed ANSYS Fluent. from work in good agreement.

Language: Английский

Citations

13
Characteristics of heat transportation in MHD flow of chemical reactive micropolar nanofluid with moving slip conditions across stagnation points DOI Creative Commons
Muhammad Jawad, Hamiden Abd El‐Wahed Khalifa,

Abeer A. Shaaban

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 101954 - 101954

Published: Feb. 29, 2024

In current study, the steady electrically conducting flow of micropolar nanofluid past a porous stretched surface across stagnation points is investigated. For motivation problem, impressions nonlinear thermal radiation and convectively heated have been analyzed. additions, influence thermophoresis heat transfer are part this study. The governing firm PDEs converted to system coupled ODEs using similarity approach. Moreover, resulting problem numerically integrated with aid shooting approach by utilizing bvp4c programmer MATLAB. numerical outcomes calculated various physical parameter values contrasted previously published results. Numerical quantities like velocity, rotation, temperature concentration profile for involving parameters such as Prandtl number Pr, R, slip α, Nt, suction/injection velocity fw, Brownian motion Nb, magnetic M Lewis Le also computed deliberated in consideration.

Language: Английский

Citations

10
Numerical treatment for radiative hybrid nanofluid flow over a stretching sheet DOI Creative Commons
Aamra Urooj, Qazi Mahmood Ul Hassan, Muhammad Asif Zahoor Raja

et al.

Results in Engineering, Journal Year: 2024, Volume and Issue: 22, P. 102209 - 102209

Published: May 7, 2024

Artificial neural networks (ANNs) have brought a huge transformation to the machine learning regime by furnishing unparalleled abilities for modeling intricate phenomena and coping with variety of challenges. In oneiric field ANNs, essential approach training ANNs is backpropagation. However, optimization crucial when handling complex fluid flow phenomenon through The current article implements Levenberg Marquardt Technique ANN backpropagation (LMT-BP-ANN) investigate radiative hybrid nanofluid (RHNF) addressing Cattaneo-Christov flux system past stretching sheet (SS). Fe2O3 single-walled carbon nanotubes (SWCNT) multi-walled (MWCNT) considered. base ethylene glycol. Physical parameters nanofluidic system, including magnetic parameter M, solid volume fractions φ1 φ2, velocity slip λ, relaxation time Ω, Biot number ϒ, thermal radiation Gr are evaluated appropriate variations that effectively accomplish dynamics model. These utilized create dataset LMT-BP-ANNs using renowned deterministic Adam's numerical technique in Mathematica software. MATLAB software, 70% data kept preparing, 15% checking, validating network. performance plot, regression graphs, error histograms constructed demonstrate suggested LMT-BP network scheme's high efficiency, efficacy, exactness. When performs, mean squared (MSE) order 10-11 observed. observed R value 1. As estimate grows, declines, although profile shows increasing behavior. increases, drops. Key findings this study anticipated noteworthy bearing on sectors require local refrigeration heating contravention.

Language: Английский

Citations

10
Synthesis, stability, and heat transfer applications of ternary composite nanofluids-A review over the last decade DOI Creative Commons
M.K. Nayak, Amjad Ali Pasha,

Bhabani Shankar Kamilla

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104284 - 104284

Published: Feb. 1, 2025

Language: Английский

Citations

1