Effects of thermophoresis and variable properties on mixed convection along a vertical wavy surface in a fluid saturated porous medium

Srinivasacharya, D.; Mallikarjuna, B.; Bhuvanavijaya, R.

doi:10.1016/j.aej.2016.04.015

Cited by 14 publications

(2 citation statements)

References 34 publications

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“…Moreover, the cubic spline collocation technique was used to investigate a natural convection near a vertical wavy surface through a porous media (Cheng, 2000). Srinivasacharya et al (2016) used the shooting technique that uses a combination of Newton-Raphson method and fourth order Runge-Kutta method to introduce a numerical simulation for the influences of both thermophoresis and variable properties on a natural convection past a vertical wavy plate impeded by porous medium. Further, the seventh-order Runge-Kutta-Fehlberg method with shooting quadrature for a bio-convection nanofluid slip flow along a wavy wall has been used by Uddin et al (2017).…”

Section: Variable Temperaturementioning

confidence: 99%

Magneto-radiative gas near an unsmooth boundary with variable temperature

Elgazery

Elazem

2022

HFF

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Purpose This paper aims to study the magneto-radiative gas (water vapor) on an unsmooth boundary. Design/methodology/approach This paper provided a numerical treatment via the implicit Chebyshev pseudo-spectral method to investigate unsteady compressible magneto-radiative gas (water vapor Pr = 1) flow near a heated vertical wavy wall through porous medium in the presence of inclined magnetic field. The impacts of viscous dissipation, temperature-dependent fluid properties, thermal conductivity and viscosity in the presence of nonlinear thermal radiation are studied. The sinusoidal surface is transformed into a flat one using a suitable transformation. The comparison figures of published data with the present outcomes illustrate a good match. The present steady-state outcomes are presented for the temperature, velocity, Nusselt number and the shearing stress through figures for several interested physical parameters, namely, compressibility, magnetic, radiation, viscosity–temperature variation, thermal conductivity–temperature variation, surface sinusoidal waveform and porous parameters. Findings The present numerical outcomes confirm the importance of applying nonlinear thermal radiation cases in all studies that investigate heat transfer under the influence of thermal radiation. Originality/value A mathematical model is established for a wavy boundary, and Chebyshev pseudo-spectral method is adopted for the numerical study.

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Section: Variable Temperaturementioning

confidence: 99%

Magneto-radiative gas near an unsmooth boundary with variable temperature

Elgazery

Elazem

2022

HFF

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“…Uddin et al (2016) analyzed the numerical solutions of mixed convective slip flow of heat and mass transfer in the presence of thermal radiation with convective boundary conditions. Srinivasacharya et al (2016) investigated the effects of thermophoresis and variable properties on mixed convection along a vertical surface in the presence of a porous medium. Mahantesh et al (2018) observed the effects of thermal radiation on MHD flow over a moving flat plate in the presence of velocity and temperature slip.…”

Section: Introductionmentioning

confidence: 99%

MHD slip flow and convective heat transfer due to a moving plate with effects of variable viscosity and thermal conductivity

Nandeppanavar¹,

Kemparaju²,

Madhusudhan³

et al. 2020

MMMS

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PurposeThe steady two-dimensional laminar boundary layer flow, heat and mass transfer over a flat plate with convective surface heat flux was considered. The governing nonlinear partial differential equations were transformed into a system of nonlinear ordinary differential equations and then solved numerically by Runge–Kutta method with the most efficient shooting technique. Then, the effect of variable viscosity and variable thermal conductivity on the fluid flow with thermal radiation effects and viscous dissipation was studied. Velocity, temperature and concentration profiles respectively were plotted for various values of pertinent parameters. It was found that the momentum slip acts as a boost for enhancement of the velocity profile in the boundary layer region, whereas temperature and concentration profiles decelerate with the momentum slip.Design/methodology/approachNumerical Solution is applied to find the solution of the boundary value problem.FindingsVelocity, heat transfer analysis is done with comparing earlier results for some standard cases.Originality/value100

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