Onset of unsteady MHD micropolar nanofluid flow with entropy generation

Almakki, Mohammed; Mondal, Hiranmoy; Sibanda, Precious

doi:10.1080/01430750.2021.1890213

Cited by 16 publications

(5 citation statements)

References 43 publications

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“…The thermal interpretation of the system can be evaluated through entropy generation which originated due to the several irreversible procedures arising in the system. The local entropy generation of the micropolar nanofluid Fe O 3 4 -water has the following volumetric rate [26,33]…”

Section: Entropy Generation Modelingmentioning

confidence: 99%

Analysis of entropy generation in the nonlinear thermal radiative micropolar nanofluid flow towards a stagnation point with catalytic effects

Ishtiaq¹,

Zidan²,

Nadeem³

et al. 2022

Phys. Scr.

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The major goal of this work is to analyze the entropy generation in a micropolar nanofluid’s hydromagnetic stagnation point flow with the involvement of the catalytic and nonlinear thermal radiation effects. The magnetite nanoparticle Fe3O4 is added to the water to form the Fe3O4-water nanofluid. A vertical stretchable sheet is assumed to initiate the two-dimensional time-independent flow. The impacts of Joule heating and viscous dissipation are considered in the development of the governing equations of the concerned problem. An appropriate procedure of similarity transformations is implemented in the system of partial differential equations (PDE) to establish the nonlinear setup of ordinary differential equations (ODE). The behavior of various aspects of fluid such as micro-rotation, entropy generation, temperature, velocity, Bejan number, and concentration relative to the pertinent parameters is graphically revealed. The graphical nature of local Nusselt number and skin friction relative to the physical parameters is also exhibited in this analysis. This study concludes that the amplification in the magnetic field develops a minimization in the velocity field. The Bejan number shows the declining behavior corresponding to the larger quantities of the Brinkman number and Reynolds number, but the entropy of the system escalates for these parameters.

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Section: Entropy Generation Modelingmentioning

confidence: 99%

Analysis of entropy generation in the nonlinear thermal radiative micropolar nanofluid flow towards a stagnation point with catalytic effects

Ishtiaq¹,

Zidan²,

Nadeem³

et al. 2022

Phys. Scr.

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“…According to the research of Roja et al [18], entropy production is increased by the angle of inclination and the Grashof number and decreased by the material parameter and the magnetic parameter. Entropy formation on the boundary layer over a stretching surface and a chemical reaction were studied by Almakki et al [26] in the context of a micropolar nanofluid of MHD fluid. They discovered that thermal diffusion is the most important contributor to entropy formation, and that the process becomes more efficient at higher Reynolds and Brinkman numbers.…”

Section: Introductionmentioning

confidence: 99%

Entropy Generation Analysis OF Mhd Micropolar – Nanofluid Flow Over A Moved And Permeable Vertical Plate

Bouaziz,

Allouaoui,

Mesbah

et al. 2024

International Journal of Applied Mechanics and Engineering

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The work's goal is to learn more about how a magnetic field, Brownian motion, and thermophoresis diffusion influence convective heat transfer in a micropolar-nanofluid flow's laminar boundary layer. Near a vertically moving, permeable plate, the complex fluid is subjected to MHD. The MATLAB application bvp4c was utilized to simplify the governing nonlinear and coupled equations for the micropolar-nanofluid, leading to the solution of the ensuing ordinary differential equations (ODEs). Graphs have been used to analyze the effect of different relevant active factors on the flow field and temperature. The results demonstrate that the micro-rotation of the nanoparticles taken into account and in suspension becomes significant for the complex fluid in the presence of the magnetic field. Analysis of the generation entropy shows that the surface is a significant source of irreversibility. There is no discernible effect of micropolarity on the relationship between Brownian and thermophoresis numbers and entropy generation.

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“…Almakki et al. [54] studied the unsteady flow of MHD micropolar nanofluid along with entropy generation. Motsa and Animasaun [55] discussed the unsteady flow of a micropolar fluid using the Bivariate Spectral Quasi‐linearization method.…”

Section: Introductionmentioning

confidence: 99%

“…For the latest advancements in MHD flow of a micropolar fluid, one can see the articles of Anantha et al [51], Ramadevi et al [52], and Yasmin et al [53]. Almakki et al [54] studied the unsteady flow of MHD micropolar nanofluid along with entropy generation. Motsa and Animasaun [55] discussed the unsteady flow of a micropolar fluid using the Bivariate Spectral Quasi-linearization method.…”

Section: Introductionmentioning

confidence: 99%

Unsteady flow of micropolar fluid on a magnetized sheet: Effects of magnetic and microrotation parameters on wall couple stress and skin friction

et al. 2023

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In this study, we investigate the unsteady flow of a micropolar fluid past a magnetized stretchable/shrinkable sheet. Our research aims to analyze the effects of magnetic field, moving slit, and various parameters on the velocity, magnetic, and microrotation profiles of the fluid. By applying the Blasius–Rayleigh–Stokes variable, we derive ordinary differential equations from the partial differential equations that define the problem. We solve the transformed set of equations using the shooting method and obtain dual solutions. Our findings indicate that skin friction decreases with increasing values of the microrotation parameter and magnetic interaction parameter. We also observe that the magnetic interaction parameter enhances the microrotation of molecules. Overall, our study provides valuable insights into the behavior of unsteady flows in micropolar fluids and sheds light on the impact of various parameters on dual solutions.

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Onset of unsteady MHD micropolar nanofluid flow with entropy generation

Cited by 16 publications

References 43 publications

Analysis of entropy generation in the nonlinear thermal radiative micropolar nanofluid flow towards a stagnation point with catalytic effects

Analysis of entropy generation in the nonlinear thermal radiative micropolar nanofluid flow towards a stagnation point with catalytic effects

Entropy Generation Analysis OF Mhd Micropolar – Nanofluid Flow Over A Moved And Permeable Vertical Plate

Unsteady flow of micropolar fluid on a magnetized sheet: Effects of magnetic and microrotation parameters on wall couple stress and skin friction

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