MHD Mixed Convection in a Lid-Driven Cavity with a Bottom Trapezoidal Body: Two-Phase Nanofluid Model

Sadiq, Muhammad; Alsabery, Ammar I.; Hashim, Ishak

doi:10.3390/en11112943

Cited by 15 publications

(4 citation statements)

References 40 publications

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“…In [ 70 ], the influence of an Al 2 O 3 –water nanofluid on laminar natural convection heat transfer was investigated while a magnetic field was present in an open cavity. The heat-transfer mechanism under study was natural convection.…”

Section: The Role Of Cavities In Nanofluid Transportmentioning

confidence: 99%

The Impact of Cavities in Different Thermal Applications of Nanofluids: A Review

et al. 2023

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Nanofluids and nanotechnology are very important in enhancing heat transfer due to the thermal conductivity of their nanoparticles, which play a vital role in heat transfer applications. Researchers have used cavities filled with nanofluids for two decades to increase the heat-transfer rate. This review also highlights a variety of theoretical and experimentally measured cavities by exploring the following parameters: the significance of cavities in nanofluids, the effects of nanoparticle concentration and nanoparticle material, the influence of the inclination angle of cavities, heater and cooler effects, and magnetic field effects in cavities. The different shapes of the cavities have several advantages in multiple applications, e.g., L-shaped cavities used in the cooling systems of nuclear and chemical reactors and electronic components. Open cavities such as ellipsoidal, triangular, trapezoidal, and hexagonal are applied in electronic equipment cooling, building heating and cooling, and automotive applications. Appropriate cavity design conserves energy and produces attractive heat-transfer rates. Circular microchannel heat exchangers perform best. Despite the high performance of circular cavities in micro heat exchangers, square cavities have more applications. The use of nanofluids has been found to improve thermal performance in all the cavities studied. According to the experimental data, nanofluid use has been proven to be a dependable solution for enhancing thermal efficiency. To improve performance, it is suggested that research focus on different shapes of nanoparticles less than 10 nm with the same design of the cavities in microchannel heat exchangers and solar collectors.

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Section: The Role Of Cavities In Nanofluid Transportmentioning

confidence: 99%

The Impact of Cavities in Different Thermal Applications of Nanofluids: A Review

et al. 2023

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“…The obtained results explained that, the Nusselt number increases by decreasing and the inclination. The effect of an external magnetic field on nanofluid mixed convective heat transfer in a lid‐driven square cavity with a bottom trapezoidal body was investigated numerically by Sadiq et al [25]. The effects of the bottom base length of the trapezoidal body, nanoparticles volume fraction, Hartmann and Richardson numbers were examined.…”

Section: Introductionmentioning

confidence: 99%

Effect of magnetic field on the mixed convection in double lid‐driven porous cavities filled with micropolar nanofluids

Ahmed

Hussein

Mansour

et al. 2022

Numerical Methods Partial

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The effect of magnetic field inclination and double lid-driven on the mixed convection in a square cavity is investigated based on the local thermal non-equilibrium model. The cavity was filled with a copper-water micropolar nanofluid saturated with a porous medium. The top and bottom walls are considered moving to the left or right directions at a constant velocity. In the current work, the ranges of parameters are as follow: Hartmann number (0 ≤ Ha ≤ 50), length of the heat source (0.2 ≤ B ≤ 0.8), Richardson number (0 ≤ Ri ≤ 10), Reynolds number (0 ≤ Re ≤ 100), location of the heat source (0.3 ≤ D ≤ 0.7), vortex to molecular viscosity ratio (0 ≤ Δ ≤ 2), Nield number (1 ≤ Q ≤ 100) and solid volume fraction (0 ≤ 𝜑 ≤ 0.1). It was found that the heat transfer decreases as the dimensionless heat source location and the Nield number increase. Also, the growing in the Nield number enhances the rate of the heat transfer for the porous phase and increases the thermal equilibrium state of the system.

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“…They concluded that the larger the nanoparticle size, the greater the number of local Nusselt. Adil et al [18] investigated the effect of nanoparticle augmentation on the heat transfer rate of nanofluids Cu-water between the hot bottom trapezoidal solid and the square cavity for different Richardson and Hartmann numbers, where he found concluded that natural convection is dominant in the case of a large Richardson number In this paper, a numerical study carried out for the natural convection of stationary laminar heat transfers in a closed rectangular cavity with a local source of internal volumetric heat generation. An Ethylene glycol-copper nanofluid crosses this ring.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Nanofluid on Natural Convection in an Isosceles Rectangular Container with a Heat Source

Bouras

Taloub

Amroune

et al. 2022

AEF

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The development of modern technology in microelectronics and power engineering requires the creation of efficient cooling systems. This is made possible by the use of special fin technology inside the cavity or special heat transfer Ethylene glycol-copper nanofluids to intensify the heat removal from the heat-generating elements. A numerical study of the natural convection of stationary laminar heat transfers in a closed rectangular cavity with a local source of internal volumetric heat generation. For different Rayleigh numbers and different volume fractions of nanoparticles. The system of equations governing the problem was solved numerically by the fluent computer code based on the method of finite volumes. Based on the Boussinesq approximation. Interior and exterior surfaces are maintained at a constant temperature. The study is carried out for Rayleigh numbers ranging from 104 to 106. The effects of different Rayleigh numbers and volume fractions of nanoparticles on natural convection have been studied. The results are presented as isotherms, isocurrents, and local and mean Nusselt numbers. The aim of this study is to see the influence of the thermal Rayleigh number and the volume fraction of the nanoparticles on the rate of heat transfer.

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MHD Mixed Convection in a Lid-Driven Cavity with a Bottom Trapezoidal Body: Two-Phase Nanofluid Model

Cited by 15 publications

References 40 publications

The Impact of Cavities in Different Thermal Applications of Nanofluids: A Review

The Impact of Cavities in Different Thermal Applications of Nanofluids: A Review

Effect of magnetic field on the mixed convection in double lid‐driven porous cavities filled with micropolar nanofluids

The Impact of Nanofluid on Natural Convection in an Isosceles Rectangular Container with a Heat Source

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