Melting heat transfer in a nanofluid boundary layer on a stretching circular cylinder

Gorla, Rama Subba Reddy; Chamkha, Ali J.; Al-Meshaiei, Eisa

doi:10.3329/jname.v9i1.7416

Cited by 28 publications

(22 citation statements)

References 15 publications

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“…Mukhopadhyay and Gorla [14] reported the axisymmetric laminar boundary layer flow of viscous fluid and heat transfer past a stretching cylinder in the presence of velocity slip condition and found that the velocity decreases with increasing the slip parameter. Gorla et al [15] considered the boundary layer flow of nanofluid induced by a stretching circular cylinder in the presence of melting effects. Rehman and Nadeem [16] studied the mixed convection flow of a micropolar fluid which possesses nanoparticles past a vertical slender cylinder and solved the governing problem by homotopy analysis method.…”

Section: Introductionmentioning

confidence: 99%

MHD axisymmetric flow of third grade fluid by a stretching cylinder

Hayat

Shafiq

Alsaedi

2015

Alexandria Engineering Journal

118

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This work is focused on the analytic solution of steady boundary layer axisymmetric flow of third-grade fluid over a continuously stretching cylinder in the presence of magnetic field. Suitable transformations are considered to reduce the partial differential equation into the ordinary differential equation. The obtained non-linear differential system is solved by homotopy analysis method (HAM). The effects of the emerging parameters such as third-grade parameter, secondgrade parameters and Reynolds number on the velocity are displayed and discussed. The expression of skin-friction coefficient is computed and presented. It is found that velocity and momentum boundary layer thickness are increasing functions of curvature parameter. Velocity profile is higher for third-grade fluid when compared with Newtonian and second-grade fluids with and without MHD effects for the cases (i) stretching cylinder and (ii) flat plate. ª 2015 Faculty of Engineering, Alexandria University. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Section: Introductionmentioning

confidence: 99%

MHD axisymmetric flow of third grade fluid by a stretching cylinder

Hayat

Shafiq

Alsaedi

2015

Alexandria Engineering Journal

118

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“…Epstein and Cho [29] discussed the laminar film condensation on a vertical surface. Much later, melting heat transfer in a nanofluid boundary layer on a stretching circular cylinder was examined by Gorla et al [30]. In the study of the effect of radiation on MHD mixed convection flow from a vertical plate embedded in a saturated porous media with melting, Adegbie et al [31] reported that the Nusselt number decreases with increase in melting parameter.…”

Section: Journal Of Applied Mathematicsmentioning

confidence: 99%

Viscous Dissipation Effects on the Motion of Casson Fluid over an Upper Horizontal Thermally Stratified Melting Surface of a Paraboloid of Revolution: Boundary Layer Analysis

Ajayi

Omowaye

Animasaun

2017

Journal of Applied Mathematics

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The problem of a non-Newtonian fluid flow past an upper surface of an object that is neither a perfect horizontal/vertical nor inclined/cone in which dissipation of energy is associated with temperature-dependent plastic dynamic viscosity is considered. An attempt has been made to focus on the case of two-dimensional Casson fluid flow over a horizontal melting surface embedded in a thermally stratified medium. Since the viscosity of the non-Newtonian fluid tends to take energy from the motion (kinetic energy) and transform it into internal energy, the viscous dissipation term is accommodated in the energy equation. Due to the existence of internal space-dependent heat source; plastic dynamic viscosity and thermal conductivity of the non-Newtonian fluid are assumed to vary linearly with temperature. Based on the boundary layer assumptions, suitable similarity variables are applied to nondimensionalized, parameterized and reduce the governing partial differential equations into a coupled ordinary differential equations. These equations along with the boundary conditions are solved numerically using the shooting method together with the Runge-Kutta technique. The effects of pertinent parameters are established. A significant increases in Re 1/2 is guaranteed with when magnitude of is large. Re 1/2 decreases with and .

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“…This makes them very convection of nanofluids in porous media, and they have developed a systematic nanofluid model that incorporates the effects of Brownian motion and thermophoresis. A similarity analysis for the problem of a steady boundary-layer flow of a nanofluid on an isothermal stretching circular cylindrical surface is analyzed by Goda et al [10]. Goda et al [11] also considered the problem of mixed convective boundary layer flow of a nanofluid over a vertical wedge saturated porous medium.…”

Section: Introductionmentioning

confidence: 98%

Non-Darcy Natural Convection From a Vertical Cylinder Embedded in a Thermally Stratified and Nanofluid-Saturated Porous Media

Rashad

Abbasbandy

Chamkha

2013

Journal of Heat Transfer

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In recent years, nanofluids have attracted attention as a new generation of heat transfer fluids in building heating, heat exchangers, plants, and automotive cooling applications because of their excellent thermal peiformance. Various benefits of the application of nanofluids include improved heat transfer, heat transfer system size reduction, minimal clogging, microchannel cooling, and miniaturization of systems. In this paper, a study of steady, laminar, natural convection boundary-layer flow adjacent to a vertical cylinder embedded in a thermally stratified nanofluid-saturated non-Darcy porous medium is investigated. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis, and a generalized porous media model, which includes inertia and boundary effects, is employed. The cylinder surface is maintained at a constant nanoparticles volume fraction, and the wall temperature is assumed to vary with the vertical distance according to the power law form. The resulting governing equations are nondimensionalized and transformed into a nonsimilar form and then solved by Keller box method. A comparison is made with the available results in the literature, and our results are in very good agreement with the known results. A parametric study of the physical parameters is made, and a representative set of numerical results for the velocity, temperature, and volume fraction, as well as local shear stress and local Nusselt and Sherwood numbers, are presented graphically. The salient features of the results are analyzed and discussed. The results indicate that, when the buoyancy ratio or modified Grashof number increases, all of the local shear stress, local Nusselt number, and the local Sherwood number enhance while the opposite behaviors are predicted when the thermophoresis parameter increases. Moreover, increasing the value of the surface curvature parameter leads to increases in all of the local shear stress and the local Nusselt and Sherwood numbers while the opposite behaviors are obtained when either of the thermal stratification parameter or the boundary effect parameter increases.

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Melting heat transfer in a nanofluid boundary layer on a stretching circular cylinder

Abstract: Abstract:A

Cited by 28 publications

References 15 publications

MHD axisymmetric flow of third grade fluid by a stretching cylinder

MHD axisymmetric flow of third grade fluid by a stretching cylinder

Viscous Dissipation Effects on the Motion of Casson Fluid over an Upper Horizontal Thermally Stratified Melting Surface of a Paraboloid of Revolution: Boundary Layer Analysis

Non-Darcy Natural Convection From a Vertical Cylinder Embedded in a Thermally Stratified and Nanofluid-Saturated Porous Media

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