A Numerical Study of Mixed Convection in Square Lid-Driven with Internal Elliptic Body and Constant Flux Heat Source on the Bottom Wall

Munshi, M. Jahirul Haque; Alim, Md. Abdul; Ali, Mohammad; Alam, M. S.

doi:10.3329/jsr.v9i2.29644

Cited by 12 publications

(7 citation statements)

References 15 publications

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“…Later, Munshi et al [18] extended their works by considering a mixed convection double lid-driven square cavity with an inside elliptic heated block. At the same time, a numerical study of mixed convection in square liddriven with an internal elliptic body and constant flux heat source on the bottom wall was presented by Munshi et al [19].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Nanofluid Flow in Porous Square-Shaped Enclosures

Munshi,

Islam,

Khandaker

et al. 2023

J. Sci. Res.

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Augmentation of heat transfer can be in so many ways, heat transfer of a nanofluid in a porous is one of the most recent methodologies. In this analysis, the physical properties of water as the base fluid and copper as the nanoparticles exercise. The Finite element method is applied to obtain numerical solutions. The effects of the Darcy number, Richardson number and solid volume fraction of nanofluids on the streamlines, isotherms, dimensionless temperature, velocity profiles, and average Nusselt numbers and average fluid temperature examined graphically. It has found that both the Richardson number and solid volume fraction have a noteworthy influence on streamlines and isotherms. Darcy number has a good control parameter for heat transfer in fluid flow through a porous medium in the enclosure. A heat transfer correlation of the average Nusselt number for various Darcy numbers and solid volume fraction presented here. Finally, for the validation of the existing work, the current results are compared with the published results, and a favorable agreement attained. Besides this, heat transfer in the square enclosure remains better than for the other enclosures with the wavy walls or curved walls.

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Section: Introductionmentioning

confidence: 99%

Simulation of Nanofluid Flow in Porous Square-Shaped Enclosures

Munshi,

Islam,

Khandaker

et al. 2023

J. Sci. Res.

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“…This phenomenon is governed by non-dimensional parameters like the Grashof number, Gr, and the Reynolds number, Re, which describe buoyancy and shear effects, respectively. Several heat transfer and mixed convective flow investigations have been previously undertaken, using various temperature gradient and enclosure geometries combinations [4][5][6][7][8][9][10]. Torrance et al [11] examined numerically fluid motion caused by a shifting upper wall inside a rectangular enclosure.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer and Mixed Convection Flow of Non-Newtonian Thermo-Dependent Power Law Fluids with Thermal Radiation Effect

Erritali¹,

Kaddiri²,

Arroub³

et al. 2022

IJHT

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The current study explores numerically mixed convection of thermo-dependent power-law fluids in a square lid-driven enclosure, including the thermal radiation effect. The vertical sidewalls are sustained at both hot and cold temperatures. On the other hand, the cavity is insulated from the horizontal walls. The upper wall is moving along the x-axis. The main governing equations that the Boussinesq approximation is used for are solved using the finite difference method. The simulations focus on the effects of multiple pertinent parameters, including the Richardson number. (Ri = 0.1, 1, 10 and 100), thermal radiation parameter (Rd = 0 and 10), power-law index (0.6 ≤ n ≤ 1.4) and the Pearson number (0 ≤ m ≤ 6). The findings reveal that improving the Richardson number reduces heat transfer. Then, increasing Rd results in a domination of heat conduction for a fluid having a higher thermal conductivity. Also, the growth in the power law-index reduces heat transfer while improving convective flow. Finally, increasing the Pearson number improves the convective flow rate and also the average Nusselt number.

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“…Furthermore, the variation of Rayleigh number and period of the heated portion influences the Nusselt number on convective structures. Munshi et al [15] investigated mixed convection in square lid-driven cavity with elliptic obstacle inside and imposed constant heat flux on the lower wall, they concluded that the mixed convection is mainly controlled by Richardson number (Ri), Grashof number (Gr) and Reynolds number (Re).…”

Section: Introductionmentioning

confidence: 99%

Thermosolutal Mixed Convection in Shallow Rectangular Cavity with Imposed Uniform Heat and Mass Fluxes and Filled with Newtonian Power-Law Fluid

Tizakast¹,

Kaddiri²,

Lamsaadi³

2021

IJHT

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The present paper investigates double-diffusive mixed convection inside a horizontal rectangular cavity both numerically using the finite volume method to solve the governing equations and analytically based on the parallel flow approximation developed for the case of shallow enclosures A≫1. Uniform heat and mass fluxes are applied to the short vertical walls, while the horizontal ones are insulated and impermeable, with top wall sliding from left to right. The results show good agreement between both solutions for a wide range of controlling parameters: Peclet number, Pe, Lewis number, Le, the buoyancy ratio, N, and thermal Rayleigh number, RaT. In order to highlight how the convective regimes influence the effect of controlling parameters on flow and heat and mass transfer characteristics, the parameter RaT/Pe 3.0 is established to delineate the zones where natural, mixed, and forced convections dominates the heat and mass transfer. Effects of governing parameters on flow intensity and heat and mass transfer rates are illustrated and discussed in terms of the stream function, Ψ, the average Nusselt number, ̅̅̅̅ , the average Sherwood number ℎ ̅̅̅ , for the three separated convective regimes.

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A Numerical Study of Mixed Convection in Square Lid-Driven with Internal Elliptic Body and Constant Flux Heat Source on the Bottom Wall

Cited by 12 publications

References 15 publications

Simulation of Nanofluid Flow in Porous Square-Shaped Enclosures

Simulation of Nanofluid Flow in Porous Square-Shaped Enclosures

Heat Transfer and Mixed Convection Flow of Non-Newtonian Thermo-Dependent Power Law Fluids with Thermal Radiation Effect

Thermosolutal Mixed Convection in Shallow Rectangular Cavity with Imposed Uniform Heat and Mass Fluxes and Filled with Newtonian Power-Law Fluid

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