Impact of Heat and Mass Transfer on Mixed Convective Flow of Nanofluid Through Porous Medium

Madhura, K. R.; Babitha,; Iyengar, S. S.

doi:10.1007/s40819-017-0424-3

Cited by 16 publications

(8 citation statements)

References 25 publications

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“…But the performance of the system depends not only on different nanomaterials but also on their shapes. Usually, in many investigations, the researchers have considered the spherical‐shaped nanoparticles 16–19 . However, in practice, there are limited applications and significance of spherical shaped nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Influence of nanoparticle shapes on natural convection flow with heat and mass transfer rates of nanofluids with fractional derivative

Madhura

Atiwali²,

Iyengar

2021

Math Methods in App Sciences

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Nanofluids are gaining extensive attention due to their thermo-physical properties in technological and industrial fields for controlling the effects of heat transfer. Classical nanofluid studies are generally confined to models described by partial differential equations of an integer order where the memory effect and hereditary properties of materials are neglected. In order to overcome these downsides, the present work focuses on studying nanofluids with fractional derivative formed by differential equations with Caputo time derivatives that provides memory effect on nanofluid characteristics. Also, investigation on natural convective flow, heat, and mass transfer of nanofluids formed by different base fluids with different shapes of copper nanoparticles past an infinite vertical plate with radiation effect is carried out. The governing fractional differential equations are solved by employing Laplace transform technique with suitable boundary conditions. The different base fluids-water (H 2 O), SA:sodium alginate (C 6 H 9 Na O 7 ), and EG:ethylene glycol (C 2 H 6 O 2 ) and different shapes of nanoparticles-blade, brick, platelet, and cylinder are considered for the study.The exact solutions are obtained for the temperature, concentration, and velocity distributions and the respective Nusselt number, Sherwood number, and skin-friction coefficient. The influence of non-dimensional parameters provides physical interpretations of temperature, concentration, and velocity fields, Nusselt number, Sherwood number, and skin friction in detail with the help of graphical representations. From the results, it is found that nanofluid with water-based blade-shaped nanoparticle exhibits more velocity and temperature distributions. Also, strengthen of fluid flow, temperature, and concentration of nanofluids are inversely correlate with fractional order derivatives.

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Section: Introductionmentioning

confidence: 99%

Influence of nanoparticle shapes on natural convection flow with heat and mass transfer rates of nanofluids with fractional derivative

Madhura

Atiwali²,

Iyengar

2021

Math Methods in App Sciences

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“…Ahmad and Khan 15 studied heat and mass transmission with viscous dissipation over a moving wedge. The influence of heat and mass transport on nanofluid flow over a stationary/moving vertical plate embedded in a porous media was investigated by Madhura et al 16 . Sharma and Kumawat 17 studied heat and mass transportation considering Ohmic heating and variable viscosity effects via a stretching surface.…”

Section: Introductionmentioning

confidence: 99%

Entropy generation minimization of higher-order endothermic/exothermic chemical reaction with activation energy on MHD mixed convective flow over a stretching surface

Sharma

Gandhi

Mishra

et al. 2022

Sci Rep

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The present investigation aims to analyze higher-order endothermic/exothermic chemical reactions with activation energy by considering thermophoresis and Brownian motion effects on MHD mixed convective flow across a vertical stretching surface. The influence of velocity slip, thermal slip, and concentration slip along with an inclined external magnetic field is also considered. The governing coupled non-linear partial differential equations are transformed into ordinary differential equations using similarity transformation. The resulting system of non-linear ODEs is solved by the Newton Raphson shooting technique using the RK-4 algorithm. The impact of various physical parameters discovered in the problem viz. endothermic/exothermic reaction variable, thermophoresis parameter, activation energy parameter, Brownian motion parameter, chemical reaction parameter have been analyzed on velocity profile, temperature profile, and concentration profile. The effects of these parameters on skin-friction coefficient, Nusselt number, and Sherwood number are displayed in tabular form as well as surface plots. The impact of various physical parameters that appeared in the entropy generation is shown using surface and contour plots. The numerical findings are in good agreement with the previously published results. It is observed that an increment in thermophoresis and Brownian motion parameters results in a declination of entropy profiles, whereas an increment in Bejan number profiles is observed. A small region near the surface exhibits an inclination in concentration profiles with an increase in the order of the chemical reaction. In contrast, the opposite effect is analyzed near the boundary layer. Also, the contour and surface plots are displayed to portray real-world applications in industrial and technical processes and the physical depiction of flow characteristics that arise in the current study.

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“…Several investigations have been available on MHD natural convective flows, and their characteristics are reported under various physical conditions. Madhura et al 9 have explored the heat and mass transfer effects on MHD nanofluid flow over a moving/stationary plate drenched in a porous medium. Heat transfer on MHD boundary layer fluid flow under the buoyancy, electric, and heating effects is discussed by Babitha et al 10 In the studies mentioned above, the behavior of an induced magnetic field is neglected to intend to avoid complications involving mathematical analysis.…”

Section: Introductionmentioning

confidence: 99%

A numerical study on heat transfer and MHD flow of a Newtonian through a porous channel—Local thermal nonequilibrium model

Siddabasappa

Kalpana²,

Babitha

2022

Heat Trans

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Vast numbers of studies concentrate on the thermal equilibrium state whereas in many real‐world applications the model exists in the nonequilibrium state. Also, local thermal non‐equilibrium precisely represents the thermohydroflow characteristics. Therefore, the current study examines the heat transfer and fluid flow characteristics of the magnetohydrodynamic flow of a Newtonian fluid through a local thermal non‐equilibrium (LTNE) porous channel in the presence of the induced magnetic field. The mathematical model of the prescribed flow encloses the coupled nonlinear equations which are difficult to approach analytically. Hence, they are solved numerically using the shooting method with the Newton–Raphson method. The implications of various physical parameters of the problem on fluid flow, induced magnetic field, current density, temperature profiles, and heat transfer are elucidated with the aid of plots and tables. From the examination, it is clear that the porous medium significantly influences the characteristics of the fluid flow. That is, the least value of the Darcy number is related to a higher momentum field. Another interesting phenomenon is that the induced magnetic field remarkably enhances when the Darcy number is high, whereas the process is contrary to the current density. The effect of LTNE on the flow characteristics and heat transfer ceases for higher values of inter‐phase heat transfer coefficient and the ratio of thermal conductivities, which gives rise to the local thermal equilibrium (LTE) situation. Furthermore, the amount of heat transport is maximum in the LTE case compared to that of the LTNE case.

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Impact of Heat and Mass Transfer on Mixed Convective Flow of Nanofluid Through Porous Medium

Cited by 16 publications

References 25 publications

Influence of nanoparticle shapes on natural convection flow with heat and mass transfer rates of nanofluids with fractional derivative

Influence of nanoparticle shapes on natural convection flow with heat and mass transfer rates of nanofluids with fractional derivative

Entropy generation minimization of higher-order endothermic/exothermic chemical reaction with activation energy on MHD mixed convective flow over a stretching surface

A numerical study on heat transfer and MHD flow of a Newtonian through a porous channel—Local thermal nonequilibrium model

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