Radiative heat transfer study for flow of non-Newtonian nanofluid past a Riga plate with variable thickness

Kumar, Rakesh; Sood, Shilpa; Shehzad, Sabir Ali; Sheikholeslami, M.

doi:10.1016/j.molliq.2017.10.018

Cited by 72 publications

(21 citation statements)

References 40 publications

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“…This situation motivated several authors to discuss the flows due to Riga plate which includes, Ahmad et al considered the nanofluid stream on upright Riga plate with strong suction and Grinberg‐term by adopting perturbation technique. Kumar et al presented chemical reactive stream with nonlinear radiative flow of Williamson nanofluid over an elongating Riga plate by the Keller‐Box method. In 2008, Pantokratoras and Magyari reported the electromagnetohydrodynamic (EMHD) natural convective liquid stream with low conduction from the Riga plate by finite difference method (FDM) with tridiagonal matrix algorithm and then it is developed by Pantokratoras to study the Blasius and Sakiadis stream lateral to the Riga plate in two cases, such as stationary and moving velocities.…”

Section: Introductionmentioning

confidence: 99%

Transient electromagnetohydrodynamic radiative squeezing flow between two parallel Riga plates using a spectral local linearization approach

Thumma¹,

Magagula

2019

Heat Trans. Asian Res.

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This article addresses transient electromagnetohydrodynamic radiative squeezing flow due to convectively heated electromagnetic actuator. The transport analysis of heat and mass is explored considering the heat generation/ absorption and destructive species homogeneous reaction. Suitable transformations are applied on the mathematical model developed to convert governing partial differential equations to ordinary differential equations (ODEs). Spectral local linearization method (SLLM) is employed on the resultant nonlinear coupled ODEs to compute the numerical results. Influence of sundry physical quantities on heat mass transfer of squeezing flow characteristics are determined using graphs and tabular results. SLLM results exhibit that momentum and temperature improved with rise in squeezing and heat source parameters correspondingly. Momentum enhances at lower plate and detracts with rise in modified Hartmann number. For improved heat source parameter, the rate of heat transfer diminishes and is more significant for higher Prandtl number values.This investigation has relevance in disk style magnetic clutches, rolling elements, food processing, bearings, squeezing film pressure sensors, and flow rheostats. K E Y W O R D S convective conditions, electromagnetohydrodynamic, heat source/ sink, riga plate, SLLM, squeezing flow

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Section: Introductionmentioning

confidence: 99%

Transient electromagnetohydrodynamic radiative squeezing flow between two parallel Riga plates using a spectral local linearization approach

Thumma¹,

Magagula

2019

Heat Trans. Asian Res.

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“…Ahmad et al 17 highlighted the importance of Riga plate with convective heating in mixed convective nanofluid flow. Kumar et al 18 observed nonlinear radiation effects on flow of chemically reacting Williamson nanofluid at thick nonuniformly stretchable Riga plate. Ahmed et al 19 explored a thermally radiating flow of water containing the carbon nanotubes on Riga plate considering viscous dissipation effects.…”

Section: Introductionmentioning

confidence: 99%

Jeffrey nanofluid flow near a Riga plate: Spectral quasilinearization approach

2020

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This article attempts to report the flow mechanism of Jeffrey nanofluid flow on a Riga plate integrating the influences of viscous dissipation, irregular heat source/ sink, Brownian motion, and thermophoretic force. Nondimensionalization of mathematical model describing the flow system is accomplished by a set of compatible transformations. An accurate solution of ordinary differential equations is achieved by practicing spectral quasilinearization method. The present method is capable of giving results with good accuracy in few iterations, which infers speedy convergence. Solutionbased error norm (a measure of difference of approximate solution in two consecutive iteration level) is presented to authenticate precision of obtained approximate solution. The similarity between present approximate results and previously reported results is noted to check correctness. Obtained numerical solutions were replicated in a diagrammatic form to visualize the impact of flow parameters. Ratio of relaxation to retardation time produces an enhancing influence on momentum and nanoparticle concentration and a declining effect on the fluid temperature. Riga plate strengthens the momentum, which intensifies the transport of heat energy from boundary layer region, resulting in a reduction in fluid temperature. K E Y W O R D S convective boundary condition, electromagnetohydrodynamic, irregular heat generation/absorption, Jeffrey nanofluid, Riga plate, variable thermal conductivity

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“…Abdel-Wahed et al [26] investigated the impact of hydromagnetic-flow and heat transfer characteristic over variable thickness surface using nanofluid. Acharya et al [27] examined the flow of water-based nanofluid over a thin stretching sheet, and Kumar et al [28] analysed radiative heat transfer Williamson nanofluid-flow over a Riga plate with variable thickness. Prasad et al [29] considered the magnetic field effects on nanofluid over a thin elastic sheet with variable thickness.…”

Section: Introductionmentioning

confidence: 99%

Micropolar mixed convective flow with Cattaneo-Christov heat flux: Non-fourier heat conduction analysis

Hussanan

Khan

et al. 2020

THERM SCI

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The purpose of this study is to investigate the impact of thermal relaxation time on the mixed convection flow of non-Newtonian micropolar fluid over a continuously stretching sheet of variable thickness in the presence of transverse magnetic field. An innovative and modified form of Fourier's law, namely, Cattaneo-Christov heat flux is employed in the energy equation to study the characteristics of thermal relaxation time. The governing equations are transformed into ODE, using similarity transformations. Fourth order Runge-Kutta numerical method is used to solve these equations. The effects of relevant parameters such as a micro-rotation parameter, magnetic parameter, thermal relaxation parameter, Prandtl number, surface thickness parameter, and mixed convection parameter, on the physical quantities are graphically presented. Results illustrate that fluid temperature enhances with the rise of thermal relaxation parameter, but it reduces with an increase in micro-rotation parameter. The skin friction decreases with a rise in micro-rotation and micro-element parameters. However, variation in the rate of heat transfer is quite significant for small values of thermal relaxation parameter.

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Radiative heat transfer study for flow of non-Newtonian nanofluid past a Riga plate with variable thickness

Cited by 72 publications

References 40 publications

Transient electromagnetohydrodynamic radiative squeezing flow between two parallel Riga plates using a spectral local linearization approach

Transient electromagnetohydrodynamic radiative squeezing flow between two parallel Riga plates using a spectral local linearization approach

Jeffrey nanofluid flow near a Riga plate: Spectral quasilinearization approach

Micropolar mixed convective flow with Cattaneo-Christov heat flux: Non-fourier heat conduction analysis

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