Numerical investigation of unsteady MHD mixed convective flow of hybrid nanofluid in a corrugated trapezoidal cavity with internal rotating heat-generating solid cylinder

Job, Victor M.; Gunakala, Sreedhara Rao; Chamkha, Ali J.

doi:10.1140/epjs/s11734-022-00604-8

Cited by 9 publications

(4 citation statements)

References 16 publications

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“…Further, the volume fraction of the nanoparticles had a considerable impact on the rate of heat transfer. Job et al [10] analysed the features of MHD mixed convective silver-alumina-water hybrid nanofluid flow inside an enclosure with a rotating cylinder. They observed that increasing the radius of the cylinder and diameter of the nanoparticles tended to enhance the flow circulation regions near the rotating cylinder.…”

Section: Nanofluid Flow In Cavities With Obstaclesmentioning

confidence: 99%

Transport phenomena of nanofluids in cavities: current trends and applications

Sivaraj

Banerjee

2022

Eur. Phys. J. Spec. Top.

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This special issue encompasses the experimental and theoretical investigations on transport phenomena of nanofluids in cavities. The contributions are classified as follows: (1) nanofluid flow in square/rectangular cavities, (2) nanofluid flow in cavities with obstacles, (3) nanofluid flow in wavy enclosures, (4) nanofluid flow in trapezoidal/circular/annular cavities, and (5) nanofluid flow in enclosures.

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Section: Nanofluid Flow In Cavities With Obstaclesmentioning

confidence: 99%

Transport phenomena of nanofluids in cavities: current trends and applications

Sivaraj

Banerjee

2022

Eur. Phys. J. Spec. Top.

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“…The nanofluid and hybrid nanofluid thermophysical properties are defined as [41]:

$$\begin{equation}\left\{ \def\eqcellsep{&}\begin{array}{l} {\mu }_{nf} = \displaystyle \frac{{{\mu }_f}}{{{{\left( {1 - \ell } \right)}}^{2.5}}},\,\,\,\,{\rho }_{nf} = {\rho }_p\ell + \left( {1 - \ell } \right){\rho }_f,\,\,\,\,\displaystyle \frac{{{k}_{nf}}}{{{k}_f}} = \displaystyle \frac{{{k}_p + 2{k}_f - 2\ell \left( {{k}_f - {k}_p} \right)}}{{{k}_p + 2{k}_f + \ell \left( {{k}_f - {k}_p} \right)}},\\[24pt] {\left( {\rho {C}_p} \right)}_{nf} =\displaystyle \ell {\left( {\rho {C}_p} \right)}_p + \left( {1 - \ell } \right){\left( {\rho {C}_p} \right)}_f,\,\,\,\,\displaystyle \frac{{{\sigma }_{nf}}}{{{\sigma }_f}} = \left( {1 + \displaystyle \frac{{3\left( {\frac{{{\sigma }_p}}{{{\sigma }_f}} - 1} \right)\ell }}{{\left( {\frac{{{\sigma }_p}}{{{\sigma }_f}} + 2} \right) - \left( {\frac{{{\sigma }_p}}{{{\sigma }_f}} - 1} \right)\ell }}} \right). \end{array} \right\}\end...

…”

Section: Problem Formulationmentioning

confidence: 99%

A semi‐analytical study of the MHD micropolar water‐based hybrid nanofluid flow over a stretching surface with variable heat source/sink

et al. 2022

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The industry level enhancement of the thermal conductivities of various base fluids is greatly aided by a nanofluid. Most engineering phenomena call for the removal of heat in order to improve industrial machinery performance. These fluids have a variety of uses, such as coolants for electric gadgets, car engines, heat exchangers and nuclear reactors. In this article, the authors have investigated the micropolar water‐based hybrid nanofluid containing silver and alumina nanoparticles over an extending surface. The flow problem also takes into account the Joule heating, variable heat source/sink, thermal radiation, chemical reaction, and activation energy. The flow problem is taken in the form of PDEs which are then transformed to ODEs by means of suitable similarity variables. The flow problem is solved with the help of HAM, which is capable of solving highly nonlinear partial and ordinary differential equations. The convergence of the HAM is also shown with the help of Figure 1. The results showed that the physical parameters have a greater influence on the velocity profile of nanofluid flow than hybrid nanofluid flow. However, the upshots of the physical constraints on the thermal profiles have a dominant impact on the hybrid nanoliquid flow relative to nanofluid. Also, it found that the physical parameters have a greater influence on the energy and mass transfer rates of the hybrid nanofluid flow than the nanofluid.

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“…The study focused on the application of hybrid nanofluids, in the trapezoidal chamber with a rotating body inside. Job et al [15] did computational experiment on magneto hydrodynamic of unstable convective flow. Studies on other complicated shape cavities has also been reported.…”

Section: Introductionmentioning

confidence: 99%

Comparative heat transfer analysis of 𝑨𝒍𝟐𝑶𝟑 and 𝑪𝒖 nanoparticles based in 𝑯𝟐𝑶 nanofluids flow inside a C-shaped partially heated rectangular cavity

Awais,

Soomro,

El-Sapa

et al. 2024

Mehran Univ. res. j. eng. technol.

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The aim of the current study is to investigate the heat transfer performance of 𝐴𝑙2𝑂3 and 𝐶𝑢 nanoparticles suspended based in 𝐻2𝑂 nanofluids inside a partially heated C-shaped enclosure. The governing equations for heat and flow transfer are solved using the Finite Element Method. Heat transmission is affected by the type and form of nanoparticles. To study the improved heat transfer performance, four different shapes of nanoparticles-spherical, cylindrical, column, and lamina-have been used. The investigation showed that among the considered shapes of nanoparticles, the lamina shape of nanoparticles performed best. Considering lamina nanoparticles, in comparison to the simple nanofluids 𝐴𝑙2𝑂3−𝐻2𝑂 and 𝐶𝑢−𝐻2𝑂 the hybrid nanofluid 𝐴𝑙2𝑂3−𝐶𝑢−𝐻2𝑂 provides the enhanced heat transfer rate. The heat transfer is governed by convection at a higher Rayleigh number. On the other hand, the heat transfer rate is decreasing by increasing the impact of the magnetic field. For the increased heat transfer rate, the best choice is lamina nanoparticles and hybrid nanofluid 𝐴𝑙2𝑂3−𝐶𝑢−𝐻2𝑂.

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Numerical investigation of unsteady MHD mixed convective flow of hybrid nanofluid in a corrugated trapezoidal cavity with internal rotating heat-generating solid cylinder

Cited by 9 publications

References 16 publications

Transport phenomena of nanofluids in cavities: current trends and applications

Transport phenomena of nanofluids in cavities: current trends and applications

A semi‐analytical study of the MHD micropolar water‐based hybrid nanofluid flow over a stretching surface with variable heat source/sink

Comparative heat transfer analysis of 𝑨𝒍𝟐𝑶𝟑 and 𝑪𝒖 nanoparticles based in 𝑯𝟐𝑶 nanofluids flow inside a C-shaped partially heated rectangular cavity

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