MHD flow of a nanofluid in an expanding or contracting porous pipe with chemical reaction and heat source/sink

Srinivas, S.; Vijayalakshmi, A.; Reddy, A. Varada; Ramamohan, T. R.

doi:10.1016/j.jppr.2016.04.004

Cited by 35 publications

(16 citation statements)

References 54 publications

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“…Srinivas et al [22] has been studied the flow of nanofluid within contracting/expanding porous pipe with chemical reaction and heat source/sink and found the analytical solution. Vijayalakshmi and Srinivas [23] has been studied the flow and heat transfer effects of a nanofluid inside expanding or contracting walls with thermal radiation.…”

Section: Using Double Perturbationmentioning

confidence: 99%

Flow of a Nanofluid and Heat Transfer in Channel With Contracting/Expanding Walls

Ali

Khan

et al. 2019

IEEE Access

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In this paper, we have investigated the effects of nanoparticles on the flow and heat transfer of viscous fluid in a deformable porous channel. The mathematical model used for the nanofluid is Buongiorno model, which combines the Brownian diffusion and thermophoresis effects. Water is used as a base fluid. Mathematically, the problem is formulated for the flow of nanofluid generated by the expanding/contracting walls of the channel and an analytic solution using homotopy analysis method for the field quantities is presented. The numerical results are also calculated using parallel shooting method. A comparison is made of the analytic results with the numerical one to ensure the correctness of the analytic results. The effects of Brownian and thermophoresis diffusion due to nanoparticles and effect of deformation of boundaries on various physical quantities are analyzed. It is observed that the velocity is higher for expansion of the nanoparticles as compared to contraction. Also the nanoparticles increases the heat flux and decreases the mass flux. The concentration flux is higher for thermophoretic diffusion in the expanding channel. INDEX TERMS Nanofluid, heat and mass transfer, deformable channel.

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Section: Using Double Perturbationmentioning

confidence: 99%

Flow of a Nanofluid and Heat Transfer in Channel With Contracting/Expanding Walls

Ali

Khan

et al. 2019

IEEE Access

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“…Waqas et al [ 10 ] described a magneto hydrodynamic (MHD) mixed convection flow of micropolar liquid caused by a nonlinear stretched sheet under convective conditions. Srinivas et al [ 11 ] investigated the effect of a chemical reaction on the MHD flow of a nanofluid in a porous pipe that was expanding or contracting in the presence of a heat source/sink. Habib et al [ 12 ] analyzed numerical simulations for slip impacts on MHD nanofluid in the presence of an electromagnetic field and gyrotactic microbes under the influences of activation energy and heat radiation.…”

Section: Introductionmentioning

confidence: 99%

On Time-Dependent Rheology of Sutterby Nanofluid Transport across a Rotating Cone with Anisotropic Slip Constraints and Bioconvection

et al. 2022

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The purpose and novelty of our study include the scrutinization of the unsteady flow and heat characteristics of the unsteady Sutterby nano-fluid flow across an elongated cone using slip boundary conditions. The bioconvection of gyrotactic micro-organisms, Cattaneo–Christov, and thermal radiative fluxes with magnetic fields are significant physical aspects of the study. Anisotropic constraints on the cone surface are taken into account. The leading formulation is transmuted into ordinary differential formate via similarity functions. Five coupled equations with nonlinear terms are resolved numerically through the utilization of a MATLAB code for the Runge–Kutta procedure. The parameters of buoyancy ratio, the porosity of medium, and bioconvection Rayleigh number decrease x-direction velocity. The slip parameter retard y-direction velocity. The temperature for Sutterby fluids is at a hotter level, but its velocity is vividly slower compared to those of nanofluids. The temperature profile improves directly with thermophoresis, v-velocity slip, and random motion of nanoentities.

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“…Many works have been devoted to studying this process using different solution methods and geometries. Fractional derivatives, which are quite helpful in evaluating numerical values of key parameters that affect the abovementioned problem has been considered by Jamil et al, 18,19 Tanveer et al, 20 and Ullah et al 21 Also, studies on different geometries such as the vertical plate, [22][23][24][25][26][27][28][29] the stretching surface, [30][31][32][33][34][35][36] and so on have been presented in the literature. Khan et al 37 used the stretching sheet to explore the impact of chemical reaction on the heat and mass transfer of an MHD Powell-Eyring fluid flow in the presence of thermal diffusion and Joule heating and revealed that momentum slows down while concentration thickens as chemical reaction rises.…”

Section: Introductionmentioning

confidence: 99%

Effect of chemical reaction, heat source/sink, and thermal diffusion on transient natural convection through a tube

2022

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A semi-analytical investigation of the effect of a chemical reaction and thermal diffusion on transient natural convection flow of a viscous incompressible binary fluid with heat source/sink in a vertical and infinite tube is presented. The equations for the model are simplified with the help of the Laplace transform, solved analytically to obtain solutions whose expressions are given in modified Bessel functions. These solutions are then inverted numerically using the Riemann sum approximation method. An exhaustive model analysis is achieved by exhibiting the temperature, concentration, and velocity profiles graphically.Also, numerical values are displayed in tabular form for the Nusselt number, Sherwood number, and the shear stress. Furthermore, a version of the governing equations which are independent of time is solved analytically. The obtained results are found to coincide with the results of the time-dependent problem at an appreciable value of time. A close examination of the results reveals that raising the generative chemical reaction parameter strengthens both the concentration and momentum of the flow while they are weakened with a surge of the destructive chemical reaction. As the heat source intensifies, both fluid temperature and velocity are elevated while the species concentration is abated with the reversed phenomenon occurring as the

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MHD flow of a nanofluid in an expanding or contracting porous pipe with chemical reaction and heat source/sink

Cited by 35 publications

References 54 publications

Flow of a Nanofluid and Heat Transfer in Channel With Contracting/Expanding Walls

Flow of a Nanofluid and Heat Transfer in Channel With Contracting/Expanding Walls

On Time-Dependent Rheology of Sutterby Nanofluid Transport across a Rotating Cone with Anisotropic Slip Constraints and Bioconvection

Effect of chemical reaction, heat source/sink, and thermal diffusion on transient natural convection through a tube

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