On Unsteady Three-Dimensional Axisymmetric MHD Nanofluid Flow with Entropy Generation and Thermo-Diffusion Effects on a Non-Linear Stretching Sheet

Almakki, Mohammed; Dey, Sharadia; Mondal, Sabyasachi; Sibanda, Precious

doi:10.3390/e19070168

Cited by 18 publications

(11 citation statements)

References 29 publications

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“…The spectral quasi-linearization method (SQLM) is used to solve the conservation equations. The SQLM is used in the literature because it gives accurate results for boundary layer type equations (see [29,30])…”

Section: Resultsmentioning

confidence: 99%

“…However, Brinkman number and dimensionless parameter have no influence on heat transfer irreversibility, consequently, the irreversibility ratio increases and Bejan number decreases. The behavior of the skin friction coefficient, the Nusselt number and the Sherwood number with variations in the pertinent parameters is expressed in Figures (24)- (30). Figures (24)- (26) show how the skin friction, the Nusselt number and Sherwood number vary according to different values of the viscoelastic parameter and the partial slip parameter, respectively.…”

Section: Resultsmentioning

confidence: 99%

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Entropy Generation in MHD Flow of Viscoelastic Nanofluids With Homogeneous-Heterogeneous Reaction, Partial Slip and Nonlinear Thermal Radiation

Almakki

Mondal

Sibanda

2020

Journal of Thermal Engineering

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We investigate the combined effects of homogeneous and heterogeneous reactions in the boundary layer flow of a viscoelastic nanofluid over a stretching sheet with nonlinear thermal radiation. The incompressible fluid is electrically conducting with an applied a transverse magnetic field. The conservation equations are solved using the spectral quasi-linearization method. This analysis is carried out in order to enhance the system performance, with the source of entropy generation and the impact of Bejan number on viscoelastic nanofluid due to a partial slip in homogeneous and heterogeneous reactions flow using the spectral quasi-linearization method. Various fluid parameters of interest such as entropy generation, Bejan number, fluid velocity, shear stress heat and mass transfer rates are studied quantitatively, and their behaviors are depicted graphically. A comparison of the entropy generation due to the heat transfer and the fluid friction is made with the help of the Bejan number. Among the findings reported in this study is that the entropy generation has a significant impact in controlling the rate of heat transfer in the boundary layer region.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Entropy Generation in MHD Flow of Viscoelastic Nanofluids With Homogeneous-Heterogeneous Reaction, Partial Slip and Nonlinear Thermal Radiation

Almakki

Mondal

Sibanda

2020

Journal of Thermal Engineering

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“…To simplify the mass equation, the chemical reaction R(r) must be constant. This constraint holds if R(r) has the following form [38]:…”

Section: Mathematical Formulationmentioning

confidence: 99%

Multiple Slip Effects on Magnetohydrodynamic Axisymmetric Buoyant Nanofluid Flow above a Stretching Sheet with Radiation and Chemical Reaction

2019

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The present article investigates the effect of multiple slips on axisymmetric magnetohydrodynamics (MHD) buoyant nano-fluid flow over a stretching sheet with radiation and chemical effect. The non-linear partial differential equations were transformed to a non-linear control equation using an appropriate similarity transformation. The governing equations were solved through the finite element method. The influence of physical parameters such as multiple slips, magnetic, thermal radiation, Prandtl number, stretching, Brownian motion, thermophoresis, Schmidt number, Lewis number and chemical reaction on the radial velocity, temperature, solutal concentration and nano-fluid volume fraction profile were investigated. We noted that the boundary layers increases in the presence of multiple slip effects whereas, the effect of thermal slip on Nusselt number increases with the increasing values of magnetic and thermal radiation. To verify the convergence of the numerical solution, the computations were made by reducing the mesh size. Finally, our results are parallel to previous scholarly contributions.

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“…The influence of entropy generation using two significant slip mechanisms of Jeffery fluid including nanofluid was examined by Rehman et al [25]. Almakki et al [26] explored the impact of unsteady MHD axisymmetric flow of a nanoliquid towards a nonlinear stretched surface with entropy generation. The minimization of entropy generation on magneto flow induced by the slandering stretched surface with Joule and frictional heating was scrutinized by Afridi et al [27].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Aligned Magnetic Flow Comprising Nanoliquid over a Radial Stretchable Surface with Cattaneo–Christov Heat Flux with Entropy Generation

Zaib

Khan

et al. 2019

Symmetry

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The influence of entropy generation on aligned magnetic flow-including nanoparticles through a convectively heated radial stretched surface in the existence of Cattaneo–Christov heat flux is inspected. The highly nonlinear leading PDE’s via the similar scaling transformation are developed. The resulting system via the bvp4c technique from Matlab is computed. The impacts of rising constraints on the liquid velocity, nanoparticles concentration and temperature profile are argued and showed via portraits and table. In addition, the performance of liquid flow is inspected through the friction factor, the mass and heat transfer rate. With the rise in the thermal relaxation constraint, the thermal boundary layer is appreciably altered. Due to an aligned angle, the velocity of nanoliquid declines, while the concentration and temperature of nanofluid augment. It is also observed that the values of friction factor increase, whereas the values of heat and mass transfer decline due to an aligned angle. Entropy generation profiles developed due to magnetic parameters and the aligned angle. Lastly, a comparative scrutiny is composed via the previous studies which lead to support for our presently developed model.

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On Unsteady Three-Dimensional Axisymmetric MHD Nanofluid Flow with Entropy Generation and Thermo-Diffusion Effects on a Non-Linear Stretching Sheet

Cited by 18 publications

References 29 publications

Entropy Generation in MHD Flow of Viscoelastic Nanofluids With Homogeneous-Heterogeneous Reaction, Partial Slip and Nonlinear Thermal Radiation

Entropy Generation in MHD Flow of Viscoelastic Nanofluids With Homogeneous-Heterogeneous Reaction, Partial Slip and Nonlinear Thermal Radiation

Multiple Slip Effects on Magnetohydrodynamic Axisymmetric Buoyant Nanofluid Flow above a Stretching Sheet with Radiation and Chemical Reaction

Numerical Investigation of Aligned Magnetic Flow Comprising Nanoliquid over a Radial Stretchable Surface with Cattaneo–Christov Heat Flux with Entropy Generation

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