Effect of Viscous Dissipation and Internal Heat Generation/Absorption on Heat Transfer Flow Over a Moving Wedge With Convective Boundary Condition

2013 ◽  
Vol 42 (7) ◽  
pp. 589-602 ◽  
Author(s):  
Rashid Ahmad ◽  
Waqar Ahmed Khan
Keyword(s):  
Heat Transfer ◽  
Boundary Condition ◽  
Viscous Dissipation ◽  
Heat Generation ◽  
Internal Heat ◽  
Convective Boundary Condition ◽  
Internal Heat Generation ◽  
Convective Boundary ◽  
Moving Wedge ◽  
Transfer Flow

scholarly journals Non-similar solutions for natural convection from a moving vertical plate with a convective thermal boundary condition

2016 ◽  
Vol 20 (6) ◽  
pp. 1847-1853
Author(s):  
Asterios Pantokratoras
Keyword(s):  
Heat Transfer ◽  
Boundary Condition ◽  
Thermal Expansion ◽  
Heat Generation ◽  
Wall Temperature ◽  
Vertical Plate ◽  
Internal Heat ◽  
Thermal Boundary Condition ◽  
Internal Heat Generation ◽  
Wall Heat Transfer

In a recent paper by Makinde (Thermal Science, 2011, Vol. 15, Suppl. 1, pp. S137-S143.) the effect of thermal buoyancy along a moving vertical plate with internal heat generation was considered. The plate thermal boundary condition was a convective condition with a heat transfer coefficient proportional to x-1/2 . The fluid thermal expansion coefficient was proportional to 1-x and the internal heat generation was assumed to decay exponentially across the boundary layer and proportional to x-1 in order that the problem accepts a similarity solution. In the present work, the same problem without heat generation is considered, with constant heat transfer coefficient and constant thermal expansion coefficient which is more realistic and has much more practical applications. The present problem is non-similar and results are obtained with the direct numerical solution of the governing equations. The problem is governed by the Prandtl number, the non-dimensional distance along the plate and a convective Grashof number, which is introduced for the first time. It is found that the wall shear stress, the wall heat transfer and the wall temperature, all increase with increasing distance and the wall temperature tends to 1. The influence of the convective Grashof number is to increase the wall shear stress and the wall heat transfer and to reduce the wall temperature.

scholarly journals Effect of Internal Heat Generation/Absorption on Dusty Fluid Flow over an Exponentially Stretching Sheet with Viscous Dissipation

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
G. M. Pavithra ◽  
B. J. Gireesha
Keyword(s):  
Heat Transfer ◽  
Differential Equations ◽  
Viscous Dissipation ◽  
Heat Generation ◽  
Internal Heat ◽  
Internal Heat Generation ◽  
Heat Transfer Analysis ◽  
Dusty Fluid ◽  
Flow And Heat Transfer ◽  
Exponentially Stretching

A numerical analysis has been carried out to describe the boundary layer flow and heat transfer of a dusty fluid over an exponentially stretching surface in the presence of viscous dissipation and internal heat generation/absorption. The governing partial differential equations are reduced to nonlinear ordinary differential equations by a similarity transformation, before being solved numerically by Runge-Kutta-Fehlberg 45 method. The heat transfer analysis has been carried out for both PEST and PEHF cases. The numerical results are compared with the earlier study and found to be in excellent agreement. Some important features of the flow and heat transfer in terms of velocities and temperature distributions for different values of the governing parameters like fluid-particle interaction parameter, Prandtl number, Eckert number, Number density, heat source/sink parameter, and suction parameter which are of physical and engineering interests are analyzed, discussed, and presented through tables and graphs.

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