Entropy analysis of magnetohydrodynamic flow and heat transfer due to a stretching cylinder

Butt, Adnan Saeed; Ali, Asif

doi:10.1016/j.jtice.2013.08.018

Cited by 58 publications

(28 citation statements)

References 21 publications

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“…However, as the magnetic fields intensifies, the region of the fluid with finite dimensionless, circumferential velocity becomes limited to a narrow bond around the cylinder. This result is in agreement with the findings in other magnetohydrodynamic problems [35,36]. …”

Section: Resultssupporting

confidence: 93%

“…Joneidi et al [35] employed homotopy analysis and developed a solution for MHD and heat transfer for stretching cylinder. Most recently, Butt and Ali [36] included the effects of entropy generation in this problem. Chauhan et al [37] generalised the results of Joneidi et al [35] by considering the cylinder to be embedded in a porous medium along with a partial slip boundary condition.…”

Section: -Introductionmentioning

confidence: 99%

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Transient Analysis of the Interactions Between a Heat Transferring, Radial Stagnation Flow, and a Rotating Cylinder-Magnetohydrodynamic and Nonuniform Transpiration Effects

Alizadeh

Rahimi

Karimi

et al. 2018

Journal of Thermal Science and Engineering Applications

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This paper aims at providing further understanding on the fluid flow and heat transfer processes in unsteady rotating systems with mass transpiration. Such systems can be found in chemical separators, hydraulic systems, and printing devices. To this end, an unsteady viscous flow in the vicinity of an unaxisymmetric stagnation-point on a rotating cylinder is examined. The nonuniform transpiration and a transverse magnetic field are further considered. The angular speed of the cylinder and the thermal boundary conditions are expressed by time-dependent functions. A reduction of the Navier–Stokes and energy equations is obtained through using appropriate similarity transformations. The semisimilar solution of the Navier–Stokes equations and energy equation are developed numerically using an implicit finite difference scheme. Pertinent parameters including the Reynolds number and magnetic parameter and transpiration function are subsequently varied systematically. It is shown that the transpiration function can significantly affect the thermal and hydrodynamic behaviors of the system. In keeping with the findings in other areas of magnetohydrodynamics (MHD), the results show that the applied magnetic field has modest effects on the Nusselt number. However, it is demonstrated that the magnetic effects can significantly increase the imposed shear stress on the surface of the rotating cylinder.

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Section: Resultssupporting

confidence: 93%

Section: -Introductionmentioning

confidence: 99%

Transient Analysis of the Interactions Between a Heat Transferring, Radial Stagnation Flow, and a Rotating Cylinder-Magnetohydrodynamic and Nonuniform Transpiration Effects

Alizadeh

Rahimi

Karimi

et al. 2018

Journal of Thermal Science and Engineering Applications

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“…Bejan [20][21][22] calculated for the first time the volumetric entropy generation rate in a fluid flow process. After the seminal work of Bejan, many researchers have performed thermodynamic analysis of flows and heat transfers in order to minimize entropy production [23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Entropy Generation in Magnetohydrodynamic Mixed Convection Flow over an Inclined Stretching Sheet

Afridi

Qasim

Khan

et al. 2016

Entropy

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This research focuses on entropy generation rate per unit volume in magneto-hydrodynamic (MHD) mixed convection boundary layer flow of a viscous fluid over an inclined stretching sheet. Analysis has been performed in the presence of viscous dissipation and non-isothermal boundary conditions. The governing boundary layer equations are transformed into ordinary differential equations by an appropriate similarity transformation. The transformed coupled nonlinear ordinary differential equations are then solved numerically by a shooting technique along with the Runge-Kutta method. Expressions for entropy generation (Ns) and Bejan number (Be) in the form of dimensionless variables are also obtained. Impact of various physical parameters on the quantities of interest is seen.

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“…Nanofluids also play a vital role in biomedicine applications like sink float separation, cancer therapy, and magnetic cell separation. Some recent efforts related to this article can be revealed by the investigators [3][4][5][6][7][8] and a number of references therein. Sheikholeslami et al 9 investigated MHD impacts on Cu-H 2 O nanofluid in an enclosure.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetohydrodynamic transport of Al₂O₃ nanoparticles in ethylene glycol over a convectively heated stretching cylinder

Mehmood

Maskeen

Zeeshan

2017

Advances in Mechanical Engineering

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In this study, the transport of Al 2 O 3 nanoparticles in ethylene glycol conventional fluid over a linearly stretching cylinder is investigated. The current research employs a convective surface boundary condition for heat transfer exploration. Flux model proposed by Rosseland is employed to examine effect of thermal radiations. The governing flow problem comprises highly nonlinear ordinary differential equations. Similarity transformations are used to reduce the equations in similar forms, which are then solved by Runge-Kutta-Fehlberg fourth-fifth order numerical scheme with shooting algorithm in MATLAB software. In order to authenticate the accuracy of our results, we have contrasted results with those obtained by Ishak et al., Wang, and Pandey and Kumar and found that they are in better concord, as revealed in Table 2. The impact of numerous emerging parameters on velocity distribution and heat transfer distribution are argued in all aspects and depicted through graphs.

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Entropy analysis of magnetohydrodynamic flow and heat transfer due to a stretching cylinder

Cited by 58 publications

References 21 publications

Transient Analysis of the Interactions Between a Heat Transferring, Radial Stagnation Flow, and a Rotating Cylinder-Magnetohydrodynamic and Nonuniform Transpiration Effects

Transient Analysis of the Interactions Between a Heat Transferring, Radial Stagnation Flow, and a Rotating Cylinder-Magnetohydrodynamic and Nonuniform Transpiration Effects

Entropy Generation in Magnetohydrodynamic Mixed Convection Flow over an Inclined Stretching Sheet

Electromagnetohydrodynamic transport of Al₂O₃ nanoparticles in ethylene glycol over a convectively heated stretching cylinder

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Entropy analysis of magnetohydrodynamic flow and heat transfer due to a stretching cylinder

Cited by 58 publications

References 21 publications

Transient Analysis of the Interactions Between a Heat Transferring, Radial Stagnation Flow, and a Rotating Cylinder-Magnetohydrodynamic and Nonuniform Transpiration Effects

Transient Analysis of the Interactions Between a Heat Transferring, Radial Stagnation Flow, and a Rotating Cylinder-Magnetohydrodynamic and Nonuniform Transpiration Effects

Entropy Generation in Magnetohydrodynamic Mixed Convection Flow over an Inclined Stretching Sheet

Electromagnetohydrodynamic transport of Al2O3 nanoparticles in ethylene glycol over a convectively heated stretching cylinder

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Product

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Electromagnetohydrodynamic transport of Al₂O₃ nanoparticles in ethylene glycol over a convectively heated stretching cylinder