Effect of variations hollow of octagon porous media on heat and mass transfer

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 21, P. 100576 - 100576

Published: Jan. 19, 2024

This study investigates stream function, temperature distribution, and concentration distortion of porous media with three types hollow. The key factors in conductive heat mass transfer are the number vanes hollows various hollows, including semi-circle, square, triangle vanes, which novelty this research. Furthermore, valuable result present is that semi-circle had a higher than square vanes. It matter to analyze phenomena used mutually coupled equations FEM. finite element approach employed compare distribution small large hollows. Based on obtained numerical results, most effect was reduction related On other hand, Nusselt bottom wall influence extremely, results depended some parameters such as ε, Diffusion, Radiation, Rayleigh number. Finally, Stream distortion, octagon analyzed develop knowledge transfer.

Language: Английский

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Investigate the influence of various parameters on MHD flow characteristics in a porous medium

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 59, P. 104428 - 104428

Published: April 21, 2024

The flow phenomena become more significant and varied when an extra heat source, a chemical reaction, thermal solutal buoyancy forces exist. Transport property optimization results from the current demand in several sectors dependent on reactant source given. Partial differential equations are transformed into ordinary using appropriate similarity transformations. Python was used as efficient tool to solve this research. According available facilities libraries, can efficiently various physics engineering problems. homotopy perturbation method (HPM) Akbari-Ganji Method (AGM) have been equations. calculated indicate high accuracy of calculations Python. effect different parameters profile velocity, temperature, concentration has investigated graphically. Also, friction coefficient (), Nusselt number Sherwood () also study. show that velocity decreases with increased magnetic field intensity. porosity parameter inverse temperature profile, so growth reduces fluid while improving profile.

Language: Английский

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The effect of magnetic field on the heat transfer in the porous medium octagonal cavity with Cassini oval barriers

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 56, P. 104194 - 104194

Published: March 16, 2024

This article investigates the effect of Rayleigh numbers, Hartmann and magnetic fields on nanofluid flow behavior heat transfer. The has been analyzed based contours values function transfer temperature distribution local average Nusselt number values. Since effects field are an important parameter in many technical engineering applications such as cooling nuclear reactors, extraction geothermal energy, induction casting metals, this study, its aluminum oxide nanoparticle, Al2O3, water, H2O, analyzed. governing equations flow, continuity, momentum, energy have solved using Galerkin finite element method coded simulated FlexPDE software. results obtained for both octagonal cavities containing horizontal vertical Cassini oval barriers with specific boundary conditions show that nanoparticle volume fraction being constant, value maximum stream decreases increase number, when is increasing increases significantly.

Language: Английский

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Free convection in a square wavy porous cavity with partly magnetic field: a numerical investigation

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: June 19, 2024

Abstract Natural convection in a square porous cavity with partial magnetic field is investigated this work. The enters part of the left wall horizontally. horizontal walls are thermally insulated. wave vertical on right side at low temperature, while high temperature. Brinkman-Forchheimer-extended Darcy equation motion utilized construction fluid flow model for media. Finite Element Method (FEM) was used to solve problem’s governing equations, and current study validated by comparing it earlier research. On streamlines, isotherms, Nusselt numbers, changes length, Hartmann number, Rayleigh number waves have been examined. This paper will show that negatively impacts heat transmission. suggests can control transfer movement. Additionally, shown improved when increased.

Language: Английский

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The effects of thermal radiation, thermal conductivity, and variable viscosity on ferrofluid in porous medium under magnetic field

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

Published: March 21, 2024

Purpose This study aims to analyze the two-dimensional ferrofluid flow in porous media. The effects of changes parameters such as permeability parameter, buoyancy Reynolds and Prandtl numbers, radiation velocity slip energy dissipation parameter viscosity on temperature profile are displayed numerically graphically. Design/methodology/approach By using simplification, nonlinear differential equations converted into ordinary equations. Modeling is done Cartesian coordinate system. finite element method (FEM) Akbari-Ganji (AGM) used solve present problem. model determines each parameter’s effect fluid’s temperature. Findings results show that if increases, fluid but decreases. As can be seen figures, by increasing a reduction an enhancement observed. When number increase If speed decreases, also increases. Originality/value considering factors like thermal conductivity variable this context, they significantly impact slippage conditions. primary objective assess influence within medium behavior. particular configuration chosen due essential role ferrofluids their extensive use engineering, industry medicine.

Language: Английский

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Convection heat transfer of MHD fluid flow in the circular cavity with various obstacles: Finite element approach

International Journal of Thermofluids, Journal Year: 2023, Volume and Issue: 20, P. 100522 - 100522

Published: Nov. 1, 2023

In the present research, a study has been conducted on model to investigate magnetohydrodynamic (MHD) heat and mass transfer phenomena. geometry of this model, there is circular cavity with variable number obstacles in each step. At stage, some are heated, its effect fluid flow investigated. Solving developing partial differential equations done using finite element method. The effects Rayleigh Hartmann numbers lines, isotherms, equivalent concentrations have investigated, output was displayed as contours graphs. Finally, Nusselt diagram displayed. main purpose evaluate changes different geometries behavior. This particular configuration chosen because fundamental role magnetohydrodynamics widespread use engineering, industry, medicine. findings research show that almost all investigated geometries, behavior streamlines, isothermal anti-symmetrical at X = 0.5. Also, heating upper obstacles, total decreases, lower increases. against increase thermal radiation parameter increasing, inside increases,

Language: Английский

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Analytical and numerical investigation of heat transfer of porous fin in a local thermal non-equilibrium state

Heliyon, Journal Year: 2024, Volume and Issue: 10(4), P. e26424 - e26424

Published: Feb. 1, 2024

This research employs a local thermal non-equilibrium (LTNE) model to analyze the heat transfer phenomenon through porous fin, considering natural convection and radiation effects. The infiltration velocity within medium is evaluated using Darcy model, buoyancy effects are accounted for Boussinesq approximation. Akbari-Ganji method (AGM) applied address governing energy equations. accuracy of proposed solution verified by comparing it with numerical results obtained from finite difference (FDM), element (FEM), earlier investigations. presented regarding total average Nusselt number temperature profiles. These shed light on influence several important parameters, such as conductivity ratio, dimensionless thickness, convectional transfer, external internal radiation. analysis reveals that decreasing Rayleigh Biot numbers reduces profiles solid phase. Additionally, when low but assigned high, between fluid phases diminishes. Furthermore, increased ratio thickness lead higher phase temperatures. exhibits trend increases

Language: Английский

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The numerical study on the MHD natural convection trend of square/circle corrugated porous media

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

Published: May 1, 2024

In this study, magnetohydrodynamic (MHD) natural convection flow investigated a large heat transfer trend in uniform magnetic field finite element approach. For verification, calculation results adjusted high stream function, temperature distribution, and the average Nusselt of MHD. This research presents an innovative contribution by analyzing corrugated geometries, specifically focusing on square-corrugated (SW) circle-corrugated (CW) configurations. Additionally, The influence key parameters constituting Hartman number, Rayleigh Darcy which largely affects velocities, temperature, was accurately observed present study. To computationally resolve, wave is in-stream behavior but has not influenced distribution or parameter. maximum minimum value number related to S at Da=10−5 case 1 WC 2, respectively. Furthermore, decreasing parameter increases velocity u v strength both cases.

Language: Английский

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Numerical study of the porous cavity with different square size vanes with a high focus on Nusselt number

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: unknown, P. 100860 - 100860

Published: Sept. 1, 2024

Language: Английский

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Numerical treatment of squeezed fluid flow under the magnetic influence amid parallel disks

International Journal of Thermofluids, Journal Year: 2024, Volume and Issue: 23, P. 100723 - 100723

Published: June 13, 2024

Detailed investigation has been carried out to examine the behavior of squeezed fluid flow under magnetic influence amid two infinitely extended disks arranged parallel each other. Porosity is introduced in lower disk study characteristics. Applications engineering and industrial processes, such as cooling systems chemical reactors, where fields regulate flow, need a thorough understanding this phenomenon. The funamdental equations Navier Stokes (N-S) Equations form Partial Differential (PDEs) are transformed into Ordinary (ODEs) with help similarity tranformation. For ensuring better accuracy MATLABs powerful tool employed BVP4C technique, compute numerical solution. Fluid characteristics discussed for stated geometry. velocity profile variations Non-dimensional parameters (Hartman Ha, Squeezed S, suction / injection A). Major findings current research revealed that effect Hartmann Number on greatest value more remarkable case compared suction. Moreover, Velocity exhibits consistent increase η rises both scenarios without (A = 0) < 0). Current opens new avenues terms exploration context simplicity, verstality techniques.

Language: Английский

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