An experimental and numerical analysis of natural convection in a partially open cuboid enclosure with a cylindrical obstacle

Kumar, Sonu; Kumar Mahapatra, Swarup

doi:10.1016/j.tsep.2023.102118

Thermal Science and Engineering Progress

2023

DOI: 10.1016/j.tsep.2023.102118

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An experimental and numerical analysis of natural convection in a partially open cuboid enclosure with a cylindrical obstacle

Sonu Kumar,

Swarup Kumar Mahapatra

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2024

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Cited by 3 publications

References 42 publications

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Hybrid Nanoparticle-Enhanced Fluid Flow and Heat Transfer Behaviors in a Parabolic Cavity with a Heat Source

Mohebbi,

2024

Arab J Sci Eng

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Natural convection of nanofluids holds considerable importance in both scientific research and engineering applications due to their exceptional heat transfer capabilities, which occur spontaneously without the need for additional energy input. In this paper, the natural convection of nanofluid inside a parabolic cavity containing a hot obstacle is studied numerically. The shape of the hot obstacle is selected as either circular or elliptical. Additionally, the effects of the Rayleigh number, nanoparticle volume fraction, and the position of the heat source are investigated. The computational fluid dynamics model was computed using COMSOL Multiphysics. It is observed that the average Nusselt number tends to increase with both the Rayleigh number and the volume fraction of nanoparticles in the fluid. When the heat source moves from the bottom region to the top area, the heat transfer performance of the heat source increases. When Ra ≤ 105, the cases with circular heat sources exhibit better heat transfer performance than those with elliptical heat sources. However, at Ra = 106, the average Nusselt number of the elliptical heat source is higher than that of the circular one.

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Hybrid Nanoparticle-Enhanced Fluid Flow and Heat Transfer Behaviors in a Parabolic Cavity with a Heat Source

Mohebbi,

2024

Arab J Sci Eng

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Effect of Obstacle Shape on Natural Convection in Partially Open Square Enclosure

Kumar,

Mahapatra

2024

Heat Transfer Engineering

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Computational study of aspect ratio and undulation effect on natural convection in an inverted T-shaped porous enclosure

Kumar,

Krishna Murthy,

Kumar

2024

Numerical Heat Transfer, Part A: Applications

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An experimental and numerical analysis of natural convection in a partially open cuboid enclosure with a cylindrical obstacle

Cited by 3 publications

References 42 publications

Hybrid Nanoparticle-Enhanced Fluid Flow and Heat Transfer Behaviors in a Parabolic Cavity with a Heat Source

Hybrid Nanoparticle-Enhanced Fluid Flow and Heat Transfer Behaviors in a Parabolic Cavity with a Heat Source

Effect of Obstacle Shape on Natural Convection in Partially Open Square Enclosure

Computational study of aspect ratio and undulation effect on natural convection in an inverted T-shaped porous enclosure

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