Radiation Effects on an Unsteady Natural Convective Flow of a Nanofluid Past an Infinite Vertical Plate

Loganathan, P.; Chand, Prabha; Ganesan, P.

doi:10.1142/s179329201350001x

Cited by 54 publications

(40 citation statements)

References 20 publications

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“…The presence of pores on the geometry of the problem also has effect on the temperature and velocity of the fluid. Increase in permeability parameter increases the velocity of the fluid which is in agreement with the results of [12] [23]. The temperature is also enhanced than when there is no porosity.…”

Section: Resultssupporting

confidence: 89%

“…Darcy's law relates the flow rate and fluid properties to the pressure gradient applied to the porous medium. This supports that as permeability increases velocity should also increase [12].…”

Section: Resultssupporting

confidence: 77%

“…The work on steady flow of a reactive variable viscosity fluid in a cylindrical pipe with an isothermal wall under Arrhenius kinetics [12] was extended to include porosity force (permeability) in the momentum equation. The respective dimensional form of the energy and momentum equations with the boundary conditions are given as…”

Section: Mathematical Formulation Of the Problemmentioning

confidence: 99%

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On Steady Flow of a Reactive Viscous Fluid in a Porous Cylindrical Pipe

Farayola¹

2017

OJFD

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Studies of mass transfer in a porous medium are of interest to researchers as a result of its various uses in different fields of engineering practices. This work examined the steady flow of a reactive variable viscous fluid in a porous cylindrical pipe. Dimensionless variables were used to dimensionalize the governing equations. A regular perturbation technique was employed to obtain an approximate solution of the resulting dimensionless non-linear equations. Numerical simulation was done to get the threshold values for the flow parameters under consideration. The effects of viscous heating and permeability parameters on the steady flow were studied and reported.

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 77%

Section: Mathematical Formulation Of the Problemmentioning

confidence: 99%

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On Steady Flow of a Reactive Viscous Fluid in a Porous Cylindrical Pipe

Farayola¹

2017

OJFD

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“…The density ρ nf , thermal expansion coefficient ( ρβ ) nf , heat capacitance ( ρc p ) nf , are derived by using the relations given by: 50 where ϕ represents nanoparticles volume fraction, ρ f and ρ CNT is the density of the base fluid and CNTs, the volumetric coefficient of thermal expansions of carbon nanotubes and base fluids are denoted by β CNT and β f respectively, ( c p ) CNT and ( c p ) f is the specific heat capacities of CNTs and carrier fluids.…”

Section: Mathematical Formulation Of the Problemmentioning

confidence: 99%

Heat transfer enhancement in free convection flow of CNTs Maxwell nanofluids with four different types of molecular liquids

Aman

Khan

Ismail

et al. 2017

Sci Rep

134

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This article investigates heat transfer enhancement in free convection flow of Maxwell nanofluids with carbon nanotubes (CNTs) over a vertically static plate with constant wall temperature. Two kinds of CNTs i.e. single walls carbon nanotubes (SWCNTs) and multiple walls carbon nanotubes (MWCNTs) are suspended in four different types of base liquids (Kerosene oil, Engine oil, water and ethylene glycol). Kerosene oil-based nanofluids are given a special consideration due to their higher thermal conductivities, unique properties and applications. The problem is modelled in terms of PDE’s with initial and boundary conditions. Some relevant non-dimensional variables are inserted in order to transmute the governing problem into dimensionless form. The resulting problem is solved via Laplace transform technique and exact solutions for velocity, shear stress and temperature are acquired. These solutions are significantly controlled by the variations of parameters including the relaxation time, Prandtl number, Grashof number and nanoparticles volume fraction. Velocity and temperature increases with elevation in Grashof number while Shear stress minimizes with increasing Maxwell parameter. A comparison between SWCNTs and MWCNTs in each case is made. Moreover, a graph showing the comparison amongst four different types of nanofluids for both CNTs is also plotted.

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“…Loganathan [9] analyzed the viscous dissipation effects on unsteady natural convective flow past an infinite vertical plate with uniform heat and mass flux. In all the above cases either normal or horizontal magnetic field is considered, but this cannot support the entire physical scenario.…”

mentioning

confidence: 99%

Viscous Dissipation and Heat Transfer Effects in MHD Rayleigh Problem.

Hemamalini¹,

Deivanayaki²

2017

IJAR

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In this paper an attempt has been made to study explicitly the effect of viscous dissipation in the MHD Rayleigh problem with inclined magnetic field is investigated in this paper. Numerical results and graphs are presented to study the combined effect of Hartmann number, Hall Parameter, Rotation parameter, Eckert number, angle of inclination and Prandtl number. …………………………………………………………………………………………………….... Introduction:-The study of Magnetohydrodynamics of a conducting fluid has applications in a variety of geophysical and astrophysical problems. The unsteady free-convection flow of a electrically conducting, viscous incompressible fluid have gained considerable attention in the presence of applied magnetic field in connection with the theories of fluid motion in the liquid core of the earth, oceanographic and metrological applications.The viscosity of the fluid in a viscous fluid flow will take energy from the motion of the fluid and transform it into internal energy of the fluid. That means heating up the fluid. This partially irreversible process is referred as dissipation or viscous dissipation. Viscous dissipation is defined as the irreversible process by means of which the work done by a fluid on adjacent layers due to the action of shear forces is transformed into heat.The effect of viscous dissipation in natural convection was analyzed by Gebhart [1]. Iqbal et.al [2] studied the viscous dissipation effects on combined free and forced convection through vertical circular tubes. Hossian [3] studies the effect of viscous and Joules heating on the flow of an electrically conducting fluid past a semiinfinite plate when temperature varies linearly with the distance from the moving edge and it in the presence of a uniform transverse magnetic field. Vajravelu and Hadjiniwlaou [4] analyzed heat transfer in a viscous fluid over a stretching sheet with viscous dissipation and internal heat generation. The problem of heat transfer on a moving plate with a uniform magnetic field has attracted the attention of many researchers such as Ali [5], Takharet. al. [6] and Zakaria [7].The simultaneous effects of the heat transfer and Hall current on a MHD flow with a porous medium in a rotating system was investigated by Dileepsing [8]. Loganathan [9] analyzed the viscous dissipation effects on unsteady natural convective flow past an infinite vertical plate with uniform heat and mass flux. In all the above cases either normal or horizontal magnetic field is considered, but this cannot support the entire physical scenario. In Science

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Radiation Effects on an Unsteady Natural Convective Flow of a Nanofluid Past an Infinite Vertical Plate

Cited by 54 publications

References 20 publications

On Steady Flow of a Reactive Viscous Fluid in a Porous Cylindrical Pipe

On Steady Flow of a Reactive Viscous Fluid in a Porous Cylindrical Pipe

Heat transfer enhancement in free convection flow of CNTs Maxwell nanofluids with four different types of molecular liquids

Viscous Dissipation and Heat Transfer Effects in MHD Rayleigh Problem.

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