Irreversibility analysis for the natural convection of Casson fluid in an inclined porous cavity under the effects of magnetic field and viscous dissipation

Hussain, Shafqat; Zeeshan, Muhammad; Sagheer, Dur-e-Shehwar

doi:10.1016/j.ijthermalsci.2022.107699

Cited by 28 publications

(4 citation statements)

References 42 publications

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“…The human blood has a rheological property of the Casson fluid, which is one type of non-Newtonian fluids. The mathematical analysis of the Casson fluid have been reported , due to the external impacts of slip conditions and Joule heating 15,16 , convective boundary conditions 17,18 , radiation 19,20 , chemical reaction 20,21 , magnetic field [22][23][24][25][26][27][28][29] , porous boundary sheet 30,31 , viscous dissipation 32,33 , heat generation and heat sink 34,35 , and various thermal conductivity 36,37 . Mixed nanofluids are novel nanofluids organized via way of forming extraordinary nanoparticles both in combination or in a composite form.…”

Section: List Of Symbol Roman Letters Amentioning

confidence: 99%

Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Oweidi

Jamshed

Goud

et al. 2022

Sci Rep

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The formation of entropy in a mixed convection Casson nanofluid model with Arhenius activation energy is examined in this paper using magnetohydrodynamics (MHD). The expanding sheet, whose function of sheet velocity is nonlinear, confines the Casson nanofluid. The final equations, which are obtained from the first mathematical formulations, are solved using the MATLAB built-in solver bvp4c. Utilizing similarity conversion, ODEs are converted in their ultimate form. A number of graphs and tabulations are also provided to show the effects of important flow parameters on the results distribution. Slip parameter was shown to increase fluid temperature and decrease entropy formation. On the production of entropy, the Brinkman number and concentration gradient have opposing effects. In the presence of nanoparticles, the Eckert number effect's augmentation of fluid temperature is more significant. Furthermore, a satisfactory agreement is reached when the findings of the current study are compared to those of studies that have been published in the past.

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Section: List Of Symbol Roman Letters Amentioning

confidence: 99%

Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Oweidi

Jamshed

Goud

et al. 2022

Sci Rep

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“…The impact of a circular obstruction for enhancing free convection in a concentric annulus filled with air has also been studied. Several researchers have conducted studies on thermo-fluid convection of nanofluid flow in annular geometries without (Hatami et al , 2016; Selimefendigil and Öztop, 2017; Dogonchi and Hashim, 2019; Seyyedi et al , 2019) and with (Afrand et al , 2017; Acharya, 2022; Sadeghi et al , 2021; Dogonchi et al , 2021; Biswas et al , 2021, 2022a; Mandal et al , 2022b; Hussain et al , 2022) magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

Magneto-nanofluidic thermal transport and irreversibility in semicircular systems with heated wavy bottom under constant fluid volume and cooling surface constraints

Biswas,

Chatterjee,

Sarkar

et al. 2024

HFF

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Purpose This study aims to investigate the influence of wall curvature in a semicircular thermal annular system on magneto-nanofluidic flow, heat transfer and entropy generation. The analysis is conducted under constant cooling surface and fluid volume constraints. Design/methodology/approach The mathematical equations describing the thermo-fluid flow in the semicircular system are solved using the finite element technique. Four different heating wall configurations are considered, varying the undulation numbers of the heated wall. Parametric variations of bottom wall undulation (f), buoyancy force characterized by the Rayleigh number (Ra), magnetic field strength represented by the Hartmann number (Ha) and inclination of the magnetic field (γ) on the overall thermal performance are studied extensively. Findings This study reveals that the fluid circulation strength is maximum in the case of a flat bottom wall. The analysis shows that the bottom wall contour and other control parameters significantly influence fluid flow, entropy production and heat transfer. The modified heated wall with a single undulation exhibits the highest entropy production and thermal convection, leading to a heat transfer enhancement of up to 21.85% compared to a flat bottom. The magnetic field intensity and orientation have a significant effect on heat transfer and irreversibility production. Research limitations/implications Further research can explore a wider range of parameter values, alternative heating wall profiles and boundary conditions to expand the understanding of magneto-nanofluidic flow in semicircular thermal systems. Originality/value This study introduces a constraint-based analysis of magneto-nanofluidic thermal behavior in a complex semicircular thermal system, providing insights into the impact of wall curvature on heat transfer performance. The findings contribute to the design and optimization of thermal systems in various applications.

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“…They deduced that the buoyancy ratio increases the extreme yield stress by up to 400%, and that the Lewis number provides a maximum value of only 20%. Hussain et al [ 27 ] have studied EG for the free convection of CF in a partially bottom-heated (square-shaped) porous domain with horizontal magnetic force strength, inclined angle, and viscous dissipation. GFEM was used to obtain the solution.…”

Section: Introductionmentioning

confidence: 99%

Impact of Moving Walls and Entropy Generation on Doubly Diffusive Mixed Convection of Casson Fluid in Two-Sided Driven Enclosure

Sivasankaran,

Bhuvaneswari,

Alzahrani

2024

Entropy

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In this study, numerical simulations are conducted with the goal of exploring the impact of the direction of the moving wall, solute and thermal transport, and entropy production on doubly diffusive convection in a chamber occupied by a Casson liquid. Wall movement has a significant impact on convective flow, which, in turn, affects the rate of mass and heat transfer; this sparked our interest in conducting further analysis. The left and right (upright) walls are preserved with constant (but different) thermal and solutal distributions, while the horizontal boundaries are impermeable to mass transfer and insulated from heat transfer. Numerical solutions are acquired using the control volume technique. Outcomes under a variety of Casson fluid parameters, including Ri, Gr, buoyancy ratio, and direction of the moving wall(s), are explored, and the influences of entropy generation are comprehensively investigated. While the flow field consists of a single cell in case I, it is dual-cellular in case III for all values of the considered parameters. Comparing the three cases, the average heat and mass transport presented lower values in case III due to the movement of an isothermal (left) wall against the buoyant force, while these values are enhanced in case I. The obtained results are expected to be useful in thermal engineering, material, food, and chemical processing applications.

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Irreversibility analysis for the natural convection of Casson fluid in an inclined porous cavity under the effects of magnetic field and viscous dissipation

Cited by 28 publications

References 42 publications

Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Partial differential equations modeling of thermal transportation in Casson nanofluid flow with arrhenius activation energy and irreversibility processes

Magneto-nanofluidic thermal transport and irreversibility in semicircular systems with heated wavy bottom under constant fluid volume and cooling surface constraints

Impact of Moving Walls and Entropy Generation on Doubly Diffusive Mixed Convection of Casson Fluid in Two-Sided Driven Enclosure

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