Entropy generation analysis for viscoelastic MHD flow over a stretching sheet embedded in a porous medium

Baag, S.; Mishra, S. R.; Dash, G. C.; Acharya, M.

doi:10.1016/j.asej.2015.10.017

Cited by 74 publications

(35 citation statements)

References 29 publications

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“…The effects of entropy generation and Bejan number on couette flow where lower plate is at rest and upper plate is moving with a uniform velocity is studied by Sukumar and Varma (2016). Baag et al (2017) examined entropy generation for viscoelastic flow through a stretching sheet with porous medium. Shantha Kumar Dutta and Arup Kumar Biswas (2018) studied the effects of permeability and the part of non-uniform heating in increasing the temperature and thermal energy and entropy generation minimization.…”

Section: Introductionmentioning

confidence: 99%

Entropy Generation and Temperature Gradient Heat Source Effects on MHD Couette Flow With Permeable Base in the Presence of Viscous and Joules Dissipation

Balamurugan¹,

Varma²,

Ramaprasad³

2020

Frontiers in Heat and Mass Transfer

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In this paper the entropy generation and temperature gradient heat source effects on MHD couette flow with permeable base in the presence of thermal radiation, viscous and joule's dissipation is studied. An exact solution of governing equations has been attained in closed form. The influences of several parameters on the velocity and temperature profiles and entropy generation are analyzed through graphs. Bejan number for different values have been calculated and displayed pictorially. The skin friction coefficient and Nusselt number at channel walls are derived and discussed their behaviour through tables. The entropy generation increases with intensifying magnetic field or thermal radiation or empirical constant or Brinkman number.

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Section: Introductionmentioning

confidence: 99%

Entropy Generation and Temperature Gradient Heat Source Effects on MHD Couette Flow With Permeable Base in the Presence of Viscous and Joules Dissipation

Balamurugan¹,

Varma²,

Ramaprasad³

2020

Frontiers in Heat and Mass Transfer

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“…In practical point of view this subject is important due to production of complex multiphase products such as inks, paints and ceramic liquids. Stimulated from the diverse applications the eminent researchers [25][26][27][28][29][30][31][32][33][34][35][36] discussed the behaviour of viscoelastic fluid flow in the presence of magnetic field considering various flow configurations. In many industrial applications such as solar chimneys, ventilation devices and cooling systems where the heated surfaces are inclined, the angular location is important to study the convective heat transfer.…”

Section: Introductionmentioning

confidence: 99%

Hall and induced magnetic field effects on convective flow of viscoelastic fluid within an inclined channel with periodic surface conditions

Singh

Vishwanath

2020

International Journal of Thermofluid Science and Technology

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This paper is concerned with the analytical study of the convective flow of a viscoelastic electrically conducting fluid within an inclined channel bounding a porous regime with Hall and induced magnetic field effects. An external magnetic field of high intensity is applied in the direction normal to the inclined surface. The left inclined surface of the channel is considered to be non-magnetic while the right inclined surface is assumed to be magnetized. Suitable non-dimensional transformations are used to reduce the problem to a similar non-dimensional problem. The resulting flow governing equations are solved analytically. The consequences of various flow influencing parameters to the flow variables are numerically computed and presented in graphical and tabular form. It is interesting to note that the growth in angle of inclination reduces the induced magnetic field in the left half of the channel while this effect is opposite in the vicinity of the right inclined surface due to magnetization of this surface.

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“…The main objective of the system is the minimization of entropy generation. The analytical study of entropy generation on viscoelastic fluid over a stretching sheet embedded in a porous medium was analysed by Baag et al [1]. They found that the higher value of the Prandtl number minimized the entropy generation.…”

Section: Introductionmentioning

confidence: 99%

Elastic deformation and inclined magnetic field on entropy generation for Walter’s liquid B fluid over a stretching sheet

Ragavan

Munirathinam

Govindaraju³

et al. 2019

J. Appl. Math. Comput. Mech.

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An analytical solution is presented for entropy generation on MHD Walter's liquid B fluid over a stretching sheet with elastic deformation. The governing expressions of PDEs are converted into ODEs by suitable transformation which is solved by a hypergeometric function. Plots for velocity, heat transfer, entropy generation and a Bejan number are examined and their behavior is deliberated for several physical parameters. It is noticed that the entropy generation is minimized for an Eckert number and enhanced for an elastic deformation parameter. Moreover, these two parameters on the Bejan number profile have reverse effects.

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Entropy generation analysis for viscoelastic MHD flow over a stretching sheet embedded in a porous medium

Cited by 74 publications

References 29 publications

Entropy Generation and Temperature Gradient Heat Source Effects on MHD Couette Flow With Permeable Base in the Presence of Viscous and Joules Dissipation

Entropy Generation and Temperature Gradient Heat Source Effects on MHD Couette Flow With Permeable Base in the Presence of Viscous and Joules Dissipation

Hall and induced magnetic field effects on convective flow of viscoelastic fluid within an inclined channel with periodic surface conditions

Elastic deformation and inclined magnetic field on entropy generation for Walter’s liquid B fluid over a stretching sheet

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