Periodic momentum and thermal boundary layer mixed convection flow around the surface of a sphere in the presence of viscous dissipation

Ashraf, Muhammad; Fatima, Almas; Gorla, R. S. R.

doi:10.1139/cjp-2016-0593

Cited by 28 publications

(20 citation statements)

References 25 publications

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“…Viscous dissipation effect usually is appreciated on convection with large decelerations from high rotating speeds, high-velocity flow and also in highly viscous flow with moderate velocity [25]. The study of the viscous dissipation effect gained the attention of many researchers recently by Ashraf et al, [26], Zokri et al, [27], Mohamed et al, [28] and Sharada and Shankar [29]. To the best of our knowledge, the present problem is never been considered before, so the results obtained in this study are new.…”

Section: Introductionmentioning

confidence: 99%

Effects of Viscous Dissipation on Mixed Convection Boundary Layer Flow Past a Vertical Moving Plate in a Nanofluid

Mohamed¹,

Salleh²,

Ishak³

2020

ARFMTS

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Adaptation from the thermal management applied in modern engine cooling system and central processing unit (CPU) in performance computer devices, present study solved the problem of steady mixed convection boundary layer flow and heat transfer on a moving vertical plate in a nanofluid with the presence of viscous dissipation and constant wall temperature. The mathematical model which is in non-linear partial differential equations is solved numerically by similarity transformation approach with the Keller-box method. The characteristics and effects of pertinent parameters considered which are Prandtl number, Lewis number, Eckert number, Brownian motion parameter, thermophoresis parameter, mixed convection parameter, concentration mixed convection parameter and plate velocity parameter are analyzed and discussed. In conclusion, there exist dual solutions in opposing flow for moving parameter range 0.18 0.48.    Further, the increase of mixed convection parameter in assisting flow results to the increase in the Nusselt number and skin friction coefficient.

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Section: Introductionmentioning

confidence: 99%

Effects of Viscous Dissipation on Mixed Convection Boundary Layer Flow Past a Vertical Moving Plate in a Nanofluid

Mohamed¹,

Salleh²,

Ishak³

2020

ARFMTS

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“…The system of Equations (‐) subject to the boundary conditions (11), are solved by using Primitive Variable Formulation for Finite Difference Method numerically using Lahr Fortran‐95. The discretization process of governing equations are similar to one used Ashraf et al…”

Section: Methods Of Solutionmentioning

confidence: 99%

Natural convection boundary layer flow of nanofluids around different stations of the sphere and into the plume above the sphere

Ashraf

Khan

Gorla

2019

Heat Trans. Asian Res.

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The main intent of the present study is to investigate the natural convection boundary layer flow of nanofluids around different stations of the sphere and eruption of the fluid from the boundary layer in to the plume above the sphere. It is pertinent to point out that in this study heated sphere is treated as point source. The system of t r . It is also observed that nanoparticles concentration is maximum at station x = 0.1 and minimum at station x = 0.2. We also established the result that with the increase of Nb skin friction is

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“…Under the conditions given in (14), by dropping bars the aforementioned system of equations having the following:…”

Section: Mathematical Formulation Of the Flow Modelmentioning

confidence: 99%

“…It was found that viscous dissipation parameter, N, and amplitude-to-length ratio of wavy surface α accelerated the fluid velocity and temperature that slowed down the rate of heat transfer. Ashraf et al [14] numerically investigated the periodic momentum and thermal boundary-layer mixed convection flow and oscillating convection flow [15] at various angles of a sphere in the presence of viscous dissipation. Authors [16][17][18][19][20][21], have studied the different cases of heat and mass transfer by using some new trends of solution.…”

Section: Introductionmentioning

confidence: 99%

Modeling and analysis of the impact of exothermic catalytic chemical reaction and viscous dissipation on natural convection flow driven along a curved surface

et al. 2020

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The impact of exothermic catalytic chemical reaction and viscous dissipation on natural-convection heat transfer along the curved shape is investigated. In this study, the trend of exothermic catalytic chemical reaction has been introduced in the energy and mass concentration equation. Furthermore, the tangential compo?nent of acceleration due to gravity, gx, as buoyancy force has coupled in momentum equation describe the curved shape. The flow model of the problem is formulated in terms of coupled non-linear PDE together with suitable boundary conditions. From the numerical solutions of the governing equations, it is found that velocity field, temperature distribution and the mass concentration is associated with the dimensionless parameters involved in the flow model. The novelty of the current study is that the characteristics of heat and fluid-flow mechanism are specifically associated with the different values of index parameter n.

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Periodic momentum and thermal boundary layer mixed convection flow around the surface of a sphere in the presence of viscous dissipation

Cited by 28 publications

References 25 publications

Effects of Viscous Dissipation on Mixed Convection Boundary Layer Flow Past a Vertical Moving Plate in a Nanofluid

Effects of Viscous Dissipation on Mixed Convection Boundary Layer Flow Past a Vertical Moving Plate in a Nanofluid

Natural convection boundary layer flow of nanofluids around different stations of the sphere and into the plume above the sphere

Modeling and analysis of the impact of exothermic catalytic chemical reaction and viscous dissipation on natural convection flow driven along a curved surface

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