A narrative loom of hybrid nanofluid-filled wavy walled tilted porous enclosure imposing a partially active magnetic field

Biswas, Nirmalendu; Mondal, Milan K.; Mandal, Dipak Kumar; Manna, Nirmal K.; Gorla, Rama Subba Reddy; Chamkha, Ali J.

doi:10.1016/j.ijmecsci.2021.107028

Cited by 82 publications

(15 citation statements)

References 59 publications

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“…A flowchart of the code is presented in Figure 2 to demonstrate the various steps/activities involved during the entire numerical procedure and the order of execution of different governing equations is also indicated in the figure. The accuracy of this in-house developed code was successfully tested against our experimental results considering natural and forced convection and these were reported earlier (Mondal et al , 2014; Biswas et al , 2016, 2021a; Mandal et al , 2021b; Biswas et al , 2022) elsewhere.…”

Section: Numerical Technique and Validationmentioning

confidence: 64%

“…Furthermore, the above-mentioned code has been enhanced systematically by implementing various multiphysical conditions like porous medium, nanofluid/hybrid nanofluid, MHD, etc. Correspondingly, extensive validation studies have been performed and reported by simulating the problems of reputed published works under natural and mixed convection (Manna and Biswas, 2021;Mondal et al, 2022aMondal et al, , 2022bBiswas et al, 2022). However, for ready reference, another validation study is included here for Cu-water nanofluid flow in a porous-filled cavity (left wall hot and right wall cold) as demonstrated by Nguyen et al (2015).…”

Section: Numerical Technique and Validationmentioning

confidence: 99%

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Hybrid nanofluid magnetohydrodynamic mixed convection in a novel W-shaped porous system

Mandal¹,

Biswas

Manna

et al. 2022

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Purpose This study aims to numerically examine the influence of various geometric parameters of a novel W-shaped porous cavity undergoing hybrid nanofluid-based magnetohydrodynamic mixed convection. The W-shaped cavity is modified from the classical trapezoidal cavity by constructing a triangular shape at its bottom. This cavity is isothermally active at the bottom, with different numbers and heights of the triangular peak (or undulation). The heated hybrid nanofluid (Cu–Al2O3–H2O) flow is cooled through the translating top wall. Inclined sidewalls are thermally insulated. To compare the impacts of change in geometric parameters, a square cavity under similar boundary conditions is also simulated. This study is carried out systematically addressing the various influences from a range of parameters like side angles (γ), number (m) and height (λ) of the bottom undulation, Reynolds number (Re), Richardson number (Ri), Darcy number (Da), Hartmann number (Ha), hybrid nanoparticles volume fraction (φ) on the overall thermal performance of the cavity. Design/methodology/approach Applying the finite volume approach, the transport equations involving multiphysical conditions like porous substance, hybrid nanofluid, magnetic field and shearing force are solved numerically by using a written FORTRAN-based code following the SIMPLE algorithm. The algebraic equations are solved over all the control volumes in an iterative process using the alternate direction implicit scheme and the tri-diagonal matrix algorithm. The converged solution of the iterative process is obtained when the relative error levels satisfy the convergence criterion of 10–8 and 10–10 for the maximum residuals and the mass defect, respectively. Findings It is revealed that an increase in the bottom undulation height always improves the thermal energy transfer despite the reduction of fluid volume. Thermal energy transfer significantly depends on the heating and cooling surface lengths, fluid volume in the cavity and the magnitude of the bottom undulation height of the W-shaped cavity. With the increase in bottom undulation height, effective heating length increases by ∼28%, which leads to a ∼15% reduction in the effective volume of the working fluid and a gain in heat transfer by ∼56.48%. In general, the overall thermal energy transport is improved by increasing Re, Ri and Da; whereas it is suppressed by increasing Ha. Research limitations/implications There are many opportunities for future research experimentally or numerically, considering different curvature effects, orientations of the geometry, working fluids, boundary conditions, etc. Furthermore, this study could be extended by considering unsteady flow or turbulent flow. Practical implications In many modern systems/processes pertaining to materials processing, continuous casting, food processing, chemical reactors, biomedical applications, etc. fine control in the transport process is a major concern. The findings of this analysis can effectively be useful for other applications for getting more control features in terms of achieving the operational objectives. The approach of the system analysis (considering geometrical size parameters to delve into the underlying transport physics) and the obtained simulated results presented in the work can usefully be applicable to similar thermal systems/devices such as materials processing, thermal mixing, chemical reactors, heat exchangers, etc. Originality/value From the well-documented and vast pool of literature survey, it is understood that there exists no such investigation on the considered geometry and study. This study contributes a lot to understanding magnetic field moderated thermofluid flow of a hybrid nanofluid in a porous medium filled W-shaped cavity, in consideration of different geometrical shape parameters (undulation peak numbers at bottom wall, peak heights, side angles and heating and cooling length). Findings brought by this study provide great insights into the design and operation under various ranges of multiphysical thermofluid-flow processing phenomena.

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Section: Numerical Technique and Validationmentioning

confidence: 64%

Section: Numerical Technique and Validationmentioning

confidence: 99%

Hybrid nanofluid magnetohydrodynamic mixed convection in a novel W-shaped porous system

Mandal¹,

Biswas

Manna

et al. 2022

HFF

Self Cite

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“… * constant value; remark: if using dimensionless numbers, the ranges are based on common academic proposals in the literature [ 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. …”

Section: Figurementioning

confidence: 99%

“…Furthermore, the position of the solid block and undulation of wall plans are beneficial in the regulation of the heat transmission and the concentration of solid nanoparticles. Nirmalendu et al [ 36 ] investigated the influence of partly active Lorentz force on the increased thermal efficiency of nano-liquid (Cu–Al 2 O 3 –H 2 O) inside a porous oblique-wavy chamber heated partially. They revealed that the existence of a complex wavy surface boosts the heat transfer by ~22.16% in comparison to a simple vertical wall; nevertheless, the intensity of liquid circulation diminishes.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Lid-Driven Hybrid Nanofluid Flow in a Corrugated Porous Cavity in the Presence of Magnetic Field

et al. 2022

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The lid-driven top wall’s influence combined with the side walls’ waviness map induce the mixed convection heat transfer, flow behavior, and entropy generation of a hybrid nanofluid (Fe3O4–MWCNT/water), a process analyzed through the present study. The working fluid occupies a permeable cubic chamber and is subjected to a magnetic field. The governing equations are solved by employing the GFEM method. The results show that the magnetic force significantly affects the working fluid’s thermal and flow behavior, where the magnetic force’s perpendicular direction remarkably improves the thermal distribution at Re = 500. Also, increasing Ha and decreasing Re drops both the irreversibility and the heat transfer rate. In addition, the highest undulation number on the wavy-sided walls gives the best heat transfer rate and the highest irreversibility.

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“…Biswas et al [41] were able to rise the thermal performance at a tilted porous cavity using Cu-Al 2 O 3 -water nanofluid subjected to the partially active magnetic field. Sung-Tag Oh et al [42] demonstrated the fabrication of an Al 2 O 3 -Cu nanocomposite using powder mixtures of fine Al 2 O 3 and copper oxide sizes.…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic mixed convection of TiO2–Cu/water between the double lid-driven cavity and a central heat source surrounding by a wavy tilted domain of porous medium under local thermal non-equilibrium

Mansour

Bakier

2023

SN Appl. Sci.

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The magnetohydrodynamic (MHD) mixed convection of heat and mass transfer is carried out using finite difference method applied inside a tilted porous cavity saturated with a hybrid nanofluid due to the presence of the double-moving lid and the heat sources. In contrast to the earlier research, various effects which are recognized by heat generation in the local thermal non-equilibrium case at the extended Brinkman Darcy model subjected to inclined magnetic field are thoroughly examined numerically. For instance, unusual observations of the cold mass surrounding the heat source emphasize that the maximum fluid temperature highly depends on the forced convection. Additionally, solid-phase temperature acts in accordance to the heat source location while fluid temperature is agitated by the moveable sides which points up the disparity at the thermal energy transportation. However, the transfer of heat and mass at the model requires a specific conduct due to the existence of damping factors. The magnetic field, for example, suppresses the fluid flow. Moreover, the thermal non-equilibrium condition deteriorates the global heat generation.

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A narrative loom of hybrid nanofluid-filled wavy walled tilted porous enclosure imposing a partially active magnetic field

Cited by 82 publications

References 59 publications

Hybrid nanofluid magnetohydrodynamic mixed convection in a novel W-shaped porous system

Hybrid nanofluid magnetohydrodynamic mixed convection in a novel W-shaped porous system

Numerical Study of Lid-Driven Hybrid Nanofluid Flow in a Corrugated Porous Cavity in the Presence of Magnetic Field

Magnetohydrodynamic mixed convection of TiO2–Cu/water between the double lid-driven cavity and a central heat source surrounding by a wavy tilted domain of porous medium under local thermal non-equilibrium

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