Heat transfer enhancement in engine oil based hybrid nanofluid through combustive engines: An entropy optimization approach

Afzal, Sidra; Qayyum, Mubashir; Akgül, Ali; Hassan, Ahmed M.

doi:10.1016/j.csite.2023.103803

Cited by 6 publications

(1 citation statement)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It may also be noted that the method we propose in this article is not limited to only first-order IVPs and can be used for finding approximate solutions to differential systems expressed in higher-order ODEs. It is also worth noting that the importance of differential equations cannot be denied as such equations appear almost in every field of science and engineering, for example see [3,4,14,15,21,24,25,29,32,37,44,48,52,54] and many of the references cited therein.…”

Section: Introductionmentioning

confidence: 99%

Optimizing A-stable hyperbolic fitting for time efficiency: exploring constant and variable stepsize approaches

Baleanu,

Qureshi,

Soomro

et al. 2024

J. Math. Computer Sci.

View full text Add to dashboard Cite

This paper proposes an optimal time-efficient numerical method for solving the initial value problems (IVPs) of ordinary differential equations (ODEs) that is both A-stable and hyperbolically fitted. The method is designed to handle both constant and variable step sizes, making it highly adaptable to different types of ODEs. The methodology proposed herein leverages the optimization of an off-grid point, derived from the predominant term of the local truncation error, to enhance both accuracy and stability in the solution of stiff ODEs. This approach incorporates a variable step size control, predicated upon the error estimation furnished by the embedded pair, and aims to minimize computational expenses while concurrently safeguarding both precision and stability. Furthermore, the stability domain of the proposed method is demonstrated to be optimal, signifying it encompasses the maximal conceivable set of step sizes wherein the method retains its stability. Other important measures including zero-stability, consistency, and convergence are also discussed theoretically and confirmed experimentally. Numerical experiments consisting of the Duffing system, sinusoidal stiff system, periodic orbit system, two-body system, Lorenz system, and the system for catenary equation demonstrate that the proposed method is highly competitive in terms of accuracy and efficiency, and outperforms several existing methods for solving stiff ODEs with both constant and variable step sizes.

show abstract

Section: Introductionmentioning

confidence: 99%

Optimizing A-stable hyperbolic fitting for time efficiency: exploring constant and variable stepsize approaches

Baleanu,

Qureshi,

Soomro

et al. 2024

J. Math. Computer Sci.

View full text Add to dashboard Cite

show abstract

Computational analysis of power-law fluids for convective heat transfer in permeable enclosures using Darcy effects

Rehman,

Hafeez,

Krawczuk

2024

J Therm Anal Calorim

View full text Add to dashboard Cite

Natural convection is a complex environmental phenomenon that typically occurs in engineering settings in porous structures. Shear thinning or shear thickening fluids are characteristics of power-law fluids, which are non-Newtonian in nature and find wide-ranging uses in various industrial processes. Non-Newtonian fluid flow in porous media is a difficult problem with important consequences for energy systems and heat transfer. In this paper, convective heat transmission in permeable enclosures will be thoroughly examined. The main goal is to comprehend the intricate interaction between the buoyancy-induced convection intensity, the porosity of the casing, and the fluid’s power-law rheology as indicated by the Rayleigh number. The objective is to comprehend the underlying mechanisms and identify the ideal conditions for improving heat transfer processes.The problem’s governing equations for a scientific investigation are predicated on the concepts of heat transport and fluid dynamics. The fluid flow and thermal behavior are represented using the energy equation, the Boussinesq approximation, and the Navier–Stokes equations. The continuity equation in a porous media represents the conservation of mass. Finite Element Analysis is the numerical method that is suggested for this challenging topic since it enables a comprehensive examination of the situation. The results of the investigation support several important conclusions. The power-law index directly impacts heat transmission patterns. A higher Rayleigh number indicates increased buoyancy-induced convection, which increases the heat transfer rates inside the shell. The porosity of the medium significantly affects temperature gradients and flow distribution, and it is most noticeable when permeability is present. The findings show how, in the context of porous media, these parameters have complicated relationships with one another.

show abstract

Generalized fractional model of heat transfer in uncertain hybrid nanofluid with entropy optimization in fuzzy-Caputo sense

Qayyum,

Afzal,

Ahmad

et al. 2024

Case Studies in Thermal Engineering

View full text Add to dashboard Cite

Heat transfer enhancement in engine oil based hybrid nanofluid through combustive engines: An entropy optimization approach

Cited by 6 publications

References 46 publications

Optimizing A-stable hyperbolic fitting for time efficiency: exploring constant and variable stepsize approaches

Optimizing A-stable hyperbolic fitting for time efficiency: exploring constant and variable stepsize approaches

Computational analysis of power-law fluids for convective heat transfer in permeable enclosures using Darcy effects

Generalized fractional model of heat transfer in uncertain hybrid nanofluid with entropy optimization in fuzzy-Caputo sense

Contact Info

Product

Resources

About