Numerical analysis of MHD nanofluid flow and heat transfer in a circular porous medium containing a Cassini oval under the influence of the Lorentz and buoyancy forces

Jalili, Bahram; Sadighi, Sina; Jalili, Payam; Ganji, D.D.

doi:10.1002/htj.22582

Cited by 54 publications

(14 citation statements)

References 70 publications

(80 reference statements)

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“…In their other work for Ra = 10 4 -10 6 , Bose et al (2013) reported the effect of an adiabatic fin propped from the heated upright wall taking the bottom wall cold and the curved wall adiabatic. Jalili et al (2022c) have numerically investigated the magneto-hydrothermal behavior of Al 2 O 3 -H 2 O nanofluid in a circular porous cavity containing a Cassini oval cavity. They have studied the effect of Lorentz and buoyant forces on the thermal performance.…”

Section: Hybrid Nanofluid Convectionmentioning

confidence: 99%

“…In the background of relatively few pioneering works (Incropera, 1988; Biswas et al , 2015; Biswas et al , 2017; Das and Basak, 2017; Lukose and Basak, 2021; Hamzah et al , 2021), most of the studies address complex phenomena (Biswas et al , 2016a; Jalili et al , 2019; Sarkar et al , 2021; Mondal et al , 2022) involving multiple physics like buoyancy, nanofluid (Rahimi et al , 2019; Ghalambaz et al , 2020; Dutta et al , 2021; Dogonchi et al , 2018; Jalili et al , 2022a), hybrid nanofluid (Sarkar et al , 2015; Ghalambaz et al , 2019; Ali, 2020; Biswas et al , 2021a, 2021b; Manna and Biswas, 2021; Jalili et al , 2022b), magnetic field (Kabeel et al , 2015; Manna et al , 2021a; Giwa et al , 2021; Jalili et al , 2021; Jalili et al , 2022d), porous medium (Comini et al , 1974; Bejan et al , 2004; Biswas et al , 2017; Debayan and Basak, 2017; Manna et al , 2021b; Jalili et al , 2022c), microorganisms (Biswas et al , 2021c, 2021d, 2021e), etc. The studies are found to exist in simple (Lewis, 1987; Biswas et al , 2016a; Manna et al , 2019) to complex geometries (Mandal et al , 2022; Saha et al , 2022a, 2022b; Hussain and Oztop, 2021; Biswas et al , 2021d; Al-Farhany et al , 2021; Bhatti et al , 2021) without or with embedded obstructions (Biswas et al , 2021e; Das, and Basak, 2017; Hussain and Oztop, 2021; Mallick et al , 2021; Sivaraja and Sheremet, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Impacts of heater-cooler position and Lorentz force on heat transfer and entropy generation of hybrid nanofluid convection in quarter-circular cavity

Manna

Biswas

Mandal³

et al. 2022

HFF

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Purpose The study aims to assess the heater and cooler positional impacts systematically using four different quadrantal cavities filled with hybrid nanofluid, keeping the curved surface adiabatic under the orientated magnetic fields. Both heat transfer and entropy generation analyses are performed for a hybrid nanofluid flow in a quarter circular cavity considering different orientations of magnetic fields. The investigation is focused to assess the heater and cooler positional impacts systematically using four different quadrantal cavities (first to fourth quadrantal cavities), keeping the curved surface always adiabatic. The impacts of pertinent variables like Rayleigh number, Hartmann number and volumetric concentration of hybrid nanofluid on heat transfer characteristics are in consideration with the second law of thermodynamics. The analysis includes the thermal, viscous and magnetic aspects of entropy generation. Design/methodology/approach After validating against the experimental results, the present work explores numerically following the Galerkin weighted finite element technique. The solution is obtained through an iterative process satisfying the convergence limit of 10−8 and 10−10 for the maximum residuals and the mass defect, respectively. Findings It revealed that the mutual exchange of heater-cooler positions on the adjacent straight edges of the quadrant cavity does not have any impact on the flow direction. Although the magnitude of flow velocity enhances, the sidewall plays a decision-making role in the formation of a single circulation vortex. It also shows that thermal entropy production is the main cause behind thermodynamic irreversibility. The second or third quadrantal arrangement could have been opted as the best configuration of the heater-cooler position for achieving superior heat transfer. The Lorentz force plays a great role to moderate the heat transfer process. The maximum entropy generation is located, as expected, at the heating-cooling junction point. Research limitations/implications There are plenty of prospects for extension of the present research concept numerically or experimentally, adopting three-dimensional analysis, working fluids, boundary conditions, etc. In fact, the study could be carried out for unsteady or turbulent fluid flow. Practical implications As the position of the heated source and cold sink on the enclosure geometry can significantly alter the thermo-fluid phenomena, this kind of analysis is of utmost relevance for the further development of efficient heating/cooling arrangements and proper management of the devices subjected to magnetic field applications. This original contribution could be a potentially valuable source for future research and exploration pertaining to a thermal system or device, like heat exchangers, solar collectors, thermal storage, electronic cooling, food and drying technologies and others. Originality/value In the literature, an inadequate number of works have focused on a quadrantal cavity, mostly considering the first quadrant of the circle. However, during practical applications, it is possible that the cavity can take the shape of the other three quadrants too, and the corresponding knowledge on relative performance is still missing. Furthermore, the present investigation includes the existence of magnetic fields at various orientations. The impact analysis of this field-induced Lorentz force on the nanofluid thermal performance is another major contribution from the present work that would enrich the domain knowledge and could be useful for thermal system engineers.

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Section: Hybrid Nanofluid Convectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impacts of heater-cooler position and Lorentz force on heat transfer and entropy generation of hybrid nanofluid convection in quarter-circular cavity

Manna

Biswas

Mandal³

et al. 2022

HFF

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“…(2009) further extended their investigations on variable thickness sheets. Many researchers ( Jalili et al. , 2022a; Jalili et al.…”

Section: Introductionmentioning

confidence: 99%

A novel technique to analyze the fractional model of Williamson and Casson non-Newtonian boundary layer flow

Jalili,

Sadinezhad Fard,

Khan

et al. 2024

MMMS

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PurposeThe current analysis produces the fractional sample of non-Newtonian Casson and Williamson boundary layer flow considering the heat flux and the slip velocity. An extended sheet with a nonuniform thickness causes the steady boundary layer flow’s temperature and velocity fields. Our purpose in this research is to use Akbari Ganji method (AGM) to solve equations and compare the accuracy of this method with the spectral collocation method.Design/methodology/approachThe trial polynomials that will be utilized to carry out the AGM are then used to solve the nonlinear governing system of the PDEs, which has been transformed into a nonlinear collection of linked ODEs.FindingsThe profile of temperature and dimensionless velocity for different parameters were displayed graphically. Also, the effect of two different parameters simultaneously on the temperature is displayed in three dimensions. The results demonstrate that the skin-friction coefficient rises with growing magnetic numbers, whereas the Casson and the local Williamson parameters show reverse manners.Originality/valueMoreover, the usefulness and precision of the presented approach are pleasing, as can be seen by comparing the results with previous research. Also, the calculated solutions utilizing the provided procedure were physically sufficient and precise.

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“…Numerous scientists and researchers have good practice in nanofluids usage in various fields [1,2,3,4,5]. In this regard, Manjunatha et al [6] presented the convective heat in ternary nanofluids flowing through a stretching surface.…”

Section: Introductionmentioning

confidence: 99%

Irreversibility Analysis through Neural Networking of the Hybrid Nanofluid for the Solar Collector Optimization

Alharbi

Gul

Khan

et al. 2023

Preprint

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Advanced techniques are used to increase the efficiency of the energy assets and maximize the appliance efficiency of the main resources. In the recent study, the focus is paid to the solar collector to cover thermal radiation through optimization and enhance the performance of the solar panel. Hybrid nanofluids (HNs) consist of a base liquid (C3H8O2) glycol whereas copper (Cu), and aluminum oxide (Al2O3) are used as nanomaterials for formation (HNs). The flow of the stagnation point is considered in the presence of the Riga plate. The state of the solar thermal system is termed viva stagnation to control the additional heating through the flow variation in the collector loop. The inclusion of entropy generation and Bejan number formation is primarily conceived under the influence of physical parameters for energy optimization. The computational analysis was carried out utilizing the control volume finite element method (CVFEM), and Runge–Kutta 4 (RK-4) methods. The results are further validated through a machine learning neural networking procedure. The conclusions showed that the heat transfer rate is greatly upgraded with a variation of the nanoparticle's volume fraction. We expect this improvement to progress the stability of heat transfer in the solar power system.

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Numerical analysis of MHD nanofluid flow and heat transfer in a circular porous medium containing a Cassini oval under the influence of the Lorentz and buoyancy forces

Abstract: This paper reports our study on the flow characteristics and heat transfer performance of magnetohydrodynamics (MHD) nanofluid in an innovative porous, circle-shaped enclosure incorporating a Cassini oval cavity using the Darcy law. The MHD nanofluid considered in this study

Cited by 54 publications

References 70 publications

Impacts of heater-cooler position and Lorentz force on heat transfer and entropy generation of hybrid nanofluid convection in quarter-circular cavity

Impacts of heater-cooler position and Lorentz force on heat transfer and entropy generation of hybrid nanofluid convection in quarter-circular cavity

A novel technique to analyze the fractional model of Williamson and Casson non-Newtonian boundary layer flow

Irreversibility Analysis through Neural Networking of the Hybrid Nanofluid for the Solar Collector Optimization

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