Entropy generation analysis during MHD mixed convection flow of non-Newtonian fluid saturated inside the square cavity

Iftikhar, Babar; Javed, Tariq; Siddiqu, Muhammad Arshad

doi:10.1016/j.jocs.2022.101907

Cited by 41 publications

(5 citation statements)

References 29 publications

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“…Furthermore, the research demonstrates the relationship between entropy generation, fluid friction entropy, and magnetic field entropy and how changes in these parameters affect total entropy generation. Iftikhar et al, [78] use the Galerkin finite element method to analyse energy transport and entropy generation due to the influence of various flow control parameters such as bi-viscosity, Prandtl, Richardson, Reynolds, and Grashof numbers. The results show that increasing the bi-viscosity parameter increases fluid velocity, energy transfer rate, and entropy generation.…”

Section: Entropy Generation In Mixed Convective Heat Transfermentioning

confidence: 99%

A Review of Entropy Generation in Rectangular Cavities

Azlina Jumadi,

Norazam Arbin,

Habibis Saleh

et al. 2024

ARFMTS

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Entropy generation is a thermodynamic system attribute representing the direction or result of spontaneous changes within the system. This article uses an entropy generation analysis to examine the thermodynamic optimum in square cavities. Numerous studies have documented using entropy generation analysis as an evaluation measure. This research will utilise entropy generation in various types of convective heat transfer under multiple factors. Furthermore, the problem formulation and outcomes regarding entropy generation in square cavities are presented and summarised in a table. To summarise, the primary goal in dealing with this problem is to get an ideal configuration that maximises energy efficiency through minimising entropy generation and enhancing heat transfer rate. This review study sets the framework for future investigations into entropy production analysis to boost energy efficiency.

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Section: Entropy Generation In Mixed Convective Heat Transfermentioning

confidence: 99%

A Review of Entropy Generation in Rectangular Cavities

Azlina Jumadi,

Norazam Arbin,

Habibis Saleh

et al. 2024

ARFMTS

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“…They also measured entropy to measure the energy loss within the domain due to dissipation effects. Inspection of entropic variations in magnetized non-Newtonian fluid filled in confined space was conducted by Iftikhar et al [22]. The generation of free and forced convective regimes in fluid flow over a Riga surface by executing numerical simulations was disclosed by Khan and Ahmed [23].…”

Section: Introductionmentioning

confidence: 99%

Volumetric thermo-convective and stratified prandtl fluid magnetized flow over an extended convectively inclined surface with chemically reactive species

Bilal,

Asadullah,

Pan

et al. 2024

Phys. Scr.

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Substantive applications of stratified flows have been observed in various industrial operating systems. Stratified flows driven by gravity differences possesses pervasive significance in performance of nuclear reactor along with management of safety problems due to pressurized thermal shock and induced water condensation. In addition, thermogravitational stratified regimes also play exclusive role in multiphase processes in diversified engineering disciplines. Therefore, this artifact investigates the thermal and solutally stratified Prandtl fluid flow over an inclined extendable surface with magnetic field aspects. Convective boundary constraints are prescribed at the surface of sheet and chemical reaction of first-order is also accounted. Firstly, problem formulation is conceded in the form of PDEs which are later transformed into ODEs by employing a similar set of variables. Then these ODEs are solved by employing shooting method in collaboration with Runge-Kutta scheme. A comparison of results in restrictive sense with outcomes attained from analytical approach to analyze robustness and accuracy of currently employed schemes is also executed. The results expressing the behavior of the involved parameters on flow distributions are revealed in graphical and tabular formats. It is revealed that the heat and mass flux coefficients increase by up to 41% and 22%, respectively, in the presence of stratification in comparison to the situation when it is absent. The velocity of the fluid is accelerated by uplifting the angle of inclination and buoyancy ratio parameters. By increasing the magnitude of the model flow parameters, the fluid velocity increased. The Prandtl number tends to reduce the temperature and elevate the heat-flux coefficient. The velocity distribution showed a positive trend with the change in the angle of inclination.

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“…Entropy optimization in thermally convection flow was studied in Bejan. 29–31 Iftikhar et al 32 analyzed entropy generation for non-Newtonian biviscosity fluid in a square cavity. Hayat et al 33 addressed the magnetized entropy optimized flow of the Reiner–Rivlin material.…”

Section: Introductionmentioning

confidence: 99%