Entropy Analysis on Unsteady MHD Flow of Casson Nanofluid over a Stretching Vertical Plate with Thermal Radiation Effect

Shit, G. C.; Mandal, S.

doi:10.1007/s40819-019-0754-4

Cited by 35 publications

(16 citation statements)

References 42 publications

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“…It was also shown that the velocity profile declines due to an increase in the buoyancy ratio parameter, and in addition, increasing the temperature difference parameter leads to a reduction in entropy generation number [26]. In another study by Shit and Mandal [27], it was found that the temperature increases due to an increase in the thermophoretic parameter. It was also observed that the Bejan number increases as a result of increased radiation near the heated plate, but when away from the plate, it decreases.…”

Section: Introductionmentioning

confidence: 93%

Heat Transfer and Entropy in a Vertical Porous Plate Subjected to Suction Velocity and MHD

Ahammad

Badruddin

Kamangar

et al. 2021

Entropy

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This article presents an investigation of heat transfer in a porous medium adjacent to a vertical plate. The porous medium is subjected to a magnetohydrodynamic effect and suction velocity. The governing equations are nondepersonalized and converted into ordinary differential equations. The resulting equations are solved with the help of the finite difference method. The impact of various parameters, such as the Prandtl number, Grashof number, permeability parameter, radiation parameter, Eckert number, viscous dissipation parameter, and magnetic parameter, on fluid flow characteristics inside the porous medium is discussed. Entropy generation in the medium is analyzed with respect to various parameters, including the Brinkman number and Reynolds number. It is noted that the velocity profile decreases in magnitude with respect to the Prandtl number, but increases with the radiation parameter. The Eckert number has a marginal effect on the velocity profile. An increased radiation effect leads to a reduced thermal gradient at the hot surface.

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Section: Introductionmentioning

confidence: 93%

Heat Transfer and Entropy in a Vertical Porous Plate Subjected to Suction Velocity and MHD

Ahammad

Badruddin

Kamangar

et al. 2021

Entropy

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“…Shit et al 47 scrutinized a mathematical model to analyze entropy generation on unsteady two-dimensional magnetohydrodynamic flow of nanofluid over an exponentially stretching surface in a porous medium under the influence of thermal radiation. This research work was extended by Shit and Mandal 48 . They treated Buongiorno’s model to investigate entropy generation on unsteady magnetohydrodynamic flow of Casson nanofluid over a stretching vertical plate under the influence of thermal radiation.…”

Section: Introductionmentioning

confidence: 99%

Entropy generation and dissipative heat transfer analysis of mixed convective hydromagnetic flow of a Casson nanofluid with thermal radiation and Hall current

Sahoo

Nandkeolyar

2021

Sci Rep

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The present article provides a detailed analysis of entropy generation on the unsteady three-dimensional incompressible and electrically conducting magnetohydrodynamic flow of a Casson nanofluid under the influence of mixed convection, radiation, viscous dissipation, Brownian motion, Ohmic heating, thermophoresis and heat generation. At first, similarity transformation is used to transform the governing nonlinear coupled partial differential equations into nonlinear coupled ordinary differential equations, and then the resulting highly nonlinear coupled ordinary differential equations are numerically solved by the utilization of spectral quasi-linearization method. Moreover, the effects of pertinent flow parameters on velocity distribution, temperature distribution, concentration distribution, entropy generation and Bejan number are depicted prominently through various graphs and tables. It can be analyzed from the graphs that the Casson parameter acts as an assisting parameter towards the temperature distribution in the absence of viscous and Joule dissipations, while it has an adverse effect on temperature under the impacts of viscous and Joule dissipations. On the contrary, entropy generation increases significantly for larger Brinkman number, diffusive variable and concentration ratio parameter, whereas the reverse effects of these parameters on Bejan number are examined. Apart from this, the numerical values of some physical quantities such as skin friction coefficients in x and z directions, local Nusselt number and Sherwood number for the variation of the values of pertinent parameters are displayed in tabular forms. A quadratic multiple regression analysis for these physical quantities has also been carried out to improve the present model’s effectiveness in various industrial and engineering areas. Furthermore, an appropriate agreement is obtained on comparing the present results with previously published results.

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“…Accordingly, Ji et al [7] have presented performance evaluation of entropy generation due to forced convective heat transfer. Shit et al [8] also investigated entropy generation performance under the effect of thermal radiation and unsteady flow over a flat plate. Gireesha et al [9] have presented a study on entropy generation with inclined porous microchannel for Casson fluid flow with viscous and Joule heating.…”

Section: Introductionmentioning

confidence: 99%

Thin Film Flow of Tangent Hyperbolic Fluid with Nonlinear Mixed Convection Flow and Entropy Generation

Ibrahim

Gizewu

2021

Mathematical Problems in Engineering

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This paper examined the three-dimensional steady thin film flow of tangent hyperbolic fluid with nonlinear mixed convection flow and entropy generation past a stretching surface under the influence of magnetic field. For the flow problem, the Cattaneo–Christov heat and mass diffusion model was employed to examine heat and mass transfer characteristics and impacts of the normally directed magnetic field. To transform nonlinear PDEs into ODEs, the variable transformation technique was used. The bvp4c algorithm was implemented to solve these ODEs. The behavior of every leading parameter on the velocities, temperature, concentration profile, entropy generation, and Bejan number was reported with tabular and figurative form. The results show that as the values of Br increase, the entropy generation enhances, but the Bejan number decreases. Moreover, as the values of B increase, the opposite characteristics are observed in entropy generation and Bejan number graphs. Furthermore, the skin friction coefficient number, local Nusselt number, and Sherwood number are graphically discussed for the active involved parameters. The best agreement is recorded when we compare this paper with the previous literature for various values of M .

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Entropy Analysis on Unsteady MHD Flow of Casson Nanofluid over a Stretching Vertical Plate with Thermal Radiation Effect

Cited by 35 publications

References 42 publications

Heat Transfer and Entropy in a Vertical Porous Plate Subjected to Suction Velocity and MHD

Heat Transfer and Entropy in a Vertical Porous Plate Subjected to Suction Velocity and MHD

Entropy generation and dissipative heat transfer analysis of mixed convective hydromagnetic flow of a Casson nanofluid with thermal radiation and Hall current

Thin Film Flow of Tangent Hyperbolic Fluid with Nonlinear Mixed Convection Flow and Entropy Generation

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