Significance of cold cylinder in heat control in power law fluid enclosed in isosceles triangular cavity generated by natural convection: A computational approach

Shah, Imtiaz Ali; Bilal, S.; Akgül, Ali; Omri, Mohamed; Bouslimi, Jamel; Khan, Noor Zeb

doi:10.1016/j.aej.2021.12.071

Cited by 24 publications

(4 citation statements)

References 33 publications

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“…are the element shape functions for the pressure. Te Gaussian divergence theorem has been introduced in equations ( 13)- (16). to generate the boundary integral terms associated with the surface tractions and heat fux in the momentum and energy equations and we obtained the following equations:…”

Section: Evaluation Of Average Nusselt Number Te Local Nusseltmentioning

confidence: 99%

“…After that, Bilal et al [15] performed a similar investigation for a square cavity with nonuniformly T-shaped fn. Later on, Shah et al [16] studied natural convection fow of power-law fuids an isosceles triangular cavity by using similar software and found noticeable infuence of governing parameters on local and average heat fux coefcients and kinetic energy. It was also inferred that a higher Rayleigh number causes enrichment in local heat transfer and kinetic energy, whereas the reverse phenomenon occurs for the power-law index.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic-Mixed Convection in Nanofluid-Filled Cavity Containing Baffles and Rotating Hollow-Cylinders with Roughness Components

Ali

Akhter

Alim

et al. 2022

Mathematical Problems in Engineering

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Mixed convective heat transfer in a nanofluid-filled lid-driven square cavity equipped with a rotating cylinder, horizontal baffles, and an external magnetic field is numerically examined in this study. A cylinder with triangular components is set at the centre of the cavity while two horizontal baffles are fixed to its vertical walls. The cavity is under the impact of the external magnetic field. Modified Maxwell’s model is taken into consideration to estimate the thermal conductivity of nanofluids. Galerkin FEM is applied to simulate nondimensional governing equations. The computations are carried out for specific ranges of physical parameters, and the results are illustrated through streamlines, isotherms, and average Nusselt number bar charts. Contours plotting indicate that flow circulation and distribution of temperature are significantly affected by the speed of a rotating rough cylinder. The fluid velocity remarkably increases with an increase in speed ratio and Reynolds number but it declines with Hartmann number, baffle length, and volume fraction. Heat transfer rate is substantially augmented by increasing the rotational speed of the rough cylinder, heights of triangular components, and suspended-nanoparticles which are also optimized for increasing baffle’s length and its horizontal arrangement. The findings of this investigation can be applied to improve the cooling efficiency of engineering equipment such as heat exchangers, energy storage systems, electronic equipment, solar collectors, and nuclear reactor safety devices.

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Section: Evaluation Of Average Nusselt Number Te Local Nusseltmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetic-Mixed Convection in Nanofluid-Filled Cavity Containing Baffles and Rotating Hollow-Cylinders with Roughness Components

Ali

Akhter

Alim

et al. 2022

Mathematical Problems in Engineering

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show abstract

“…In their groundbreaking study Li et al [25] examined how a revolving cone affected the convective transport of a viscous nanofluid, which advanced the field. The work of Shah et al [26][27][28] explored the use of computer models to examine temperature control in non-Newtonian fluids, the effect of hybrid nanoparticles on nanofluid dynamics, and the influence of magnetism on the diffusion of thermophoretic particles in turbulent flows. Jan et al [29][30][31][32] examined heat transmission in hybrid nanofluids across stretched surfaces using numerical simulations to determine how magnetization, fluid non-similarity, and external forces affect Sisko fluid thermal properties.…”

Section: Introductionmentioning

confidence: 99%

ANN-Based Computational Heat Transfer Analysis of Carreau Fluid over a Rotating Cone

Ullah,

Ashraf,

Hassan

2024

Preprint

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Heat transport in a dynamically rotating cone immersed in a Carreau fluid is the subject of this investigation. The fluid is a non-Newtonian, admired for its shear-thinning characteristics and utilized extensively in numerous industrial domains. The study investigates the interplay between buoyancy and centrifugal forces within the analytical framework. In order to find a solution, we will use numerical simulation with an ANN algorithm, namely the back-propagation Levenberg-Marquardt Scheme (BLMS), in conjunction with the Shooting mechanism. The enormous influence of centrifugation and buoyancy on the complex fluid dynamics and heat exchange processes is clearly proved by the results. Some important parameters that govern the convective heat transport process are the Nusselt number, the Reynolds number, the Grashof number, and the fluid and cone rotational velocities. The study confirms the need of taking non-Newtonian complexities and viscous dissipation into account when studying heat transfer dynamics and fluid flow, which could lead to more accurate predictions and better efficiency in a variety of industrial processes.

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“…Simulations of tangentially‐hyperbolic nanofluids reveal a recent development in the efficiency of mass‐ and heat‐transmitting fluids in boundary‐layer flows. Different NNF model were discussed by [1–4]. Abbas et al.…”

Section: Introductionmentioning

confidence: 99%

Second law analysis in Darcy‐Forchheimer flow of tangent hyperbolic nanofluid in the presence of gyrotactic microorganisms

et al. 2023

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This article investigates the creation of entropy and the thermal transport of fluids during hyperbolic tangent flow with Darcy-Forchheimer flow over a stretching surface. Because of the role of shear-thinning that the hyperbolic tangent fluid displays, the mechanics of the fluid are described with the assistance of a connected system of differential models that are constructed from a partial differential equation. The bvp4c routine, a three-stage Lobatto-IIIA method numerical analysis is utilized in the study. The effects of varying values of dimensionless parameters including Forchheimer number, inertia parameter, thermal radiation, Brownian motion, Prandtl number, Scimdth number, chemical reaction, Peclet number an Bioconvection Lewis number are simulated numerically. In addition, to this, the numerical values of the skin friction coefficient, the local Nusselt and Sherwood number and motile density are shown in the form of graphs and tables respectively. It has been discovered that increasing the value of the Fr and 𝛾 results in an upsurging velocity profile while a reverse trend is noted for the unsteady parameter. In addition to this, higher values of the radiation parameter Rd cause the operating fluid to be subjected to a greater quantity of heat, which results in an associated increase in the temperature profile.

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Significance of cold cylinder in heat control in power law fluid enclosed in isosceles triangular cavity generated by natural convection: A computational approach

Cited by 24 publications

References 33 publications

Magnetic-Mixed Convection in Nanofluid-Filled Cavity Containing Baffles and Rotating Hollow-Cylinders with Roughness Components

Magnetic-Mixed Convection in Nanofluid-Filled Cavity Containing Baffles and Rotating Hollow-Cylinders with Roughness Components

ANN-Based Computational Heat Transfer Analysis of Carreau Fluid over a Rotating Cone

Second law analysis in Darcy‐Forchheimer flow of tangent hyperbolic nanofluid in the presence of gyrotactic microorganisms

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