Natural convective heat transfer in a nanofluid-filled square vessel having a wavy upper surface in the presence of a magnetic field

Uddin, Md. Jashim; Rasel, S.K.; Rahman, M.M.; Vajravelu, K.

doi:10.1016/j.tsep.2020.100660

Cited by 13 publications

(5 citation statements)

References 58 publications

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“…An analysis by Sud et al [9] on the effect of magnetic field on blood flow expressed that speed of blood enhanced with the moving magnetic field. Uddin et al [10] exerted the Natural convective heat transfer in a nanofluid-filled square vessel having a wavy upper surface in the presence of a magnetic field.…”

Section: Introductionmentioning

confidence: 99%

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Effect of inclined magnetic field on flow of Williamson nanofluid over an exponentially stretching surface in Darcy‐Forchheimer model

Sharma

Sood

2022

Z Angew Math Mech

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The present study elaborates magnetohydrodynamics (MHD) boundary layer flow with heat and mass transfer of pseudo-plastic nanofluid over an exponentially stretching sheet embedded in a porous medium. Also, the effects of Brownian motion and thermophoresis on heat transfer and nanoparticle concentration are taken into account. With the help of suitable similarity transformations, the governing partial differential equations (PDEs) are transformed into a system of ordinary differential equations (ODEs). An inbuilt solver of MATLAB is being used to solve the system of mathematical equations. The effects of dimensionless parameters on the flow, heat transfer and nanoparticle concentration have been investigated. Graphs have been plotted and discussed to analyze the effects of various dimensionless parameters on velocity, temperature and concentration. As per the results, fluid velocity diminishes as the values of the aligned angle elongate, although temperature and concentration profiles reflect a switch pattern. Furthermore, as the values of Brownian motion, thermophoresis parameter and Lewis number rise, the temperature and concentration profiles rise as well. However, the concentration profiles for Brownian motion and Lewis number shows the reverse tendency.

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Section: Introductionmentioning

confidence: 99%

“…Uddin et al. [10] exerted the Natural convective heat transfer in a nanofluid‐filled square vessel having a wavy upper surface in the presence of a magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Effect of inclined magnetic field on flow of Williamson nanofluid over an exponentially stretching surface in Darcy‐Forchheimer model

Sharma

Sood

2022

Z Angew Math Mech

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“…Uddin and Rasel [36] investigated the convective heat transport of nanofluids in the quadrilateral cavity by the magnetic field. Uddin et al [37] also researched the convective temperature transport of nanofluids in a square vessel with a magnetic effect. Islam et al [38][39][40] conducted MHD convective temperature transport of nanofluids with various geometries and heated systems.…”

Section: Introductionmentioning

confidence: 99%

Impact of Non-Uniform Periodic Magnetic Field on Unsteady Natural Convection Flow of Nanofluids in Square Enclosure

et al. 2022

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In this article, unsteady free convective heat transport of copper-water nanofluid within a square-shaped enclosure with the dominance of non-uniform horizontal periodic magnetic effect is investigated numerically. Various nanofluids are also used to investigate temperature performance. The Brownian movement of nano-sized particles is included in the present model. A sinusoidal function of the y coordinate is considered for the magnetic effect, which works as a non-uniform magnetic field. The left sidewall is warmed at a higher heat, whereas the right sidewall is cooled at a lower heat. The upper and bottom walls are insulated. For solving the governing non-linear partial differential equation, Galerkin weighted residual finite element method is devoted. Comparisons are made with previously published articles, and we found there to be excellent compliance. The influence of various physical parameters, namely, the volume fraction of nanoparticles, period of the non-uniform magnetic field, Rayleigh number, the shape and diameter of nanoparticles, and Hartmann number on the temperature transport and fluid flow are researched. The local and average Nusselt number is also calculated to investigate the impact of different parameters on the flow field. The results show the best performance of heat transport for the Fe3O4-water nanofluid than for other types of nanofluids. The heat transport rate increases 20.14% for Fe3O4-water nanofluid and 8.94% for TiO2-water nanofluid with 1% nanoparticles volume. The heat transportation rate enhances with additional nanoparticles into the base fluid whereas it decreases with the increase of Hartmann number and diameter of particles. A comparison study of uniform and non-uniform magnetic effects is performed, and a higher heat transfer rate is observed for a non-uniform magnetic effect compared to a uniform magnetic effect. Moreover, periods of magnetic effect and a nanoparticle’s Brownian movement significantly impacts the temperature transport and fluid flow. The solution reaches unsteady state to steady state within a very short time.

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“…Al-Kouz et al 31 investigated the effects of the wavy wall on natural convection in a tilted cavity filled with water. Uddin et al 32 studied a nanofluid's free convective heat transfer in a square container with a wavering upper wall. Abdulkadhim et al 33 provide a study of some recent articles in this field of free convection between interior bodies inserted into a variety of complicated cavity forms.…”

Section: Introductionmentioning

confidence: 99%

Natural convection in a porous cavity filled (35%MWCNT-65% Fe3O4)/water hybrid nanofluid with a solid wavy wall via Galerkin finite-element process

Gumir

Al‐Farhany

Jamshed

et al. 2022

Sci Rep

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A numerical analysis of natural convective heat transfer in a square porous cavity with a solid wavy finite wall filled with (35% MWCNT-65% Fe3O4)/water hybrid nanofluid. The left wavy wall is heated to a constant temperature, the right wall is held at a low temperature, and the top and bottom walls are thermally insulated. Darcy-Brinkman-Forchheimer model is used to model porous medium with hybrid nanofluid. COMSOL Multiphasic Modeling Software via Galerkin finite element method has been used to solve the governing equations. The dimensionless parameters used in this investigation are; modified Rayleigh number (Ra* = 102, 103, 104, and 106), Darcy number (Da = 10–2, 10–4 and 10–6), Solid volume fraction (ϕ = 0.01, 0.03, and 0.05),undulation number (N = 1, 3, 5, and 7), amplitude of the wavy wall (A = 0.1, 0.2, and 0.3), and Prandtl number = 7.2 at constant high porosity. At a high Darcy number (Da = 10–2), the isotherm lines parallel to the vertical cavity walls, which means that conduction is the primary method of heat transport. At the same time, the convection mode is increasingly necessary at a lower Darcy number. The convection flow and the maximum amounts of stream function are reduced when both A = 0.1 and N = 1 increase. The average Nusselt number increases with increasing Ra*, while it decreases with increasing Darcy number and amplitude wave numbers. It has been determined that the largest improvement in heat transfer is at Ra* = 104, Da = 10–6, ϕ = 0.05, A = 0.1, and N = 1.

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Natural convective heat transfer in a nanofluid-filled square vessel having a wavy upper surface in the presence of a magnetic field

Cited by 13 publications

References 58 publications

Effect of inclined magnetic field on flow of Williamson nanofluid over an exponentially stretching surface in Darcy‐Forchheimer model

Effect of inclined magnetic field on flow of Williamson nanofluid over an exponentially stretching surface in Darcy‐Forchheimer model

Impact of Non-Uniform Periodic Magnetic Field on Unsteady Natural Convection Flow of Nanofluids in Square Enclosure

Natural convection in a porous cavity filled (35%MWCNT-65% Fe3O4)/water hybrid nanofluid with a solid wavy wall via Galerkin finite-element process

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