Momentum and heat transfer of an upper-convected Maxwell fluid over a moving surface with convective boundary conditions

2012 ◽  
Vol 252 ◽  
pp. 242-247 ◽  
Author(s):  
T. Hayat ◽  
Z. Iqbal ◽  
M. Mustafa ◽  
A. Alsaedi
Keyword(s):  
Heat Transfer ◽  
Boundary Conditions ◽  
Maxwell Fluid ◽  
Convective Boundary Conditions ◽  
Convective Boundary ◽  
Moving Surface ◽  
Momentum And Heat Transfer

Heat Transfer in a Couple Stress Fluid over a Continuous Moving Surface with Internal Heat Generation and Convective Boundary Conditions

2012 ◽  
Vol 67 (5) ◽  
pp. 217-224 ◽  
Author(s):  
Tasawar Hayat ◽  
Zahid Iqbal ◽  
Muhammad Qasim ◽  
Omar M. Aldossary
Keyword(s):  
Heat Transfer ◽  
Boundary Conditions ◽  
Heat Generation ◽  
Couple Stress ◽  
Couple Stress Fluid ◽  
Physical Parameters ◽  
Series Solutions ◽  
Convective Boundary Conditions ◽  
Convective Boundary ◽  
Moving Surface

This investigation reports the boundary layer flow and heat transfer characteristics in a couple stress fluid flow over a continuos moving surface with a parallel free stream. The effects of heat generation in the presence of convective boundary conditions are also investigated. Series solutions for the velocity and temperature distributions are obtained by the homotopy analysis method (HAM). Convergence of obtained series solutions are analyzed. The results are obtained and discussed through graphs for physical parameters of interest.

Steady Flow of Maxwell Fluid with Convective Boundary Conditions

2011 ◽  
Vol 66 (6-7) ◽  
pp. 417-422 ◽  
Author(s):  
Tasawar Hayat ◽  
Sabir Ali Shehzad ◽  
Muhammad Qasim ◽  
Saleem Obaidat
Keyword(s):  
Heat Transfer ◽  
Boundary Conditions ◽  
Maxwell Fluid ◽  
Surface Heat ◽  
Convective Boundary Conditions ◽  
Analysis Method ◽  
Stretching Surface ◽  
Convective Boundary ◽  
Homotopy Analysis

We performed a study for the flow of a Maxwell fluid induced by a stretching surface. Heat transfer is also addressed by using the convective boundary conditions. We solved the nonlinear problem by employing a homotopy analysis method (HAM).We computed the velocity, temperature, and Nusselt number. The role of embedded parameters on the velocity and temperature is particularly analyzed

Unsteady and porous media flow of reactive non-Newtonian fluids subjected to buoyancy and suction/injection

2015 ◽  
Vol 25 (7) ◽  
pp. 1682-1704 ◽  
Author(s):  
Tirivanhu Chinyoka ◽  
Daniel Oluwole Makinde
Keyword(s):  
Heat Transfer ◽  
Porous Media ◽  
Boundary Conditions ◽  
Flow Velocity ◽  
Flow System ◽  
Finite Difference Methods ◽  
Porous Media Flow ◽  
Convective Boundary Conditions ◽  
Convective Boundary ◽  
Content Type

Purpose – The purpose of this paper is to examine the unsteady pressure-driven flow of a reactive third-grade non-Newtonian fluid in a channel filled with a porous medium. The flow is subjected to buoyancy, suction/injection asymmetrical and convective boundary conditions. Design/methodology/approach – The authors assume that exothermic chemical reactions take place within the flow system and that the asymmetric convective heat exchange with the ambient at the surfaces follow Newton’s law of cooling. The authors also assume unidirectional suction injection flow of uniform strength across the channel. The flow system is modeled via coupled non-linear partial differential equations derived from conservation laws of physics. The flow velocity and temperature are obtained by solving the governing equations numerically using semi-implicit finite difference methods. Findings – The authors present the results graphically and draw qualitative and quantitative observations and conclusions with respect to various parameters embedded in the problem. In particular the authors make observations regarding the effects of bouyancy, convective boundary conditions, suction/injection, non-Newtonian character and reaction strength on the flow velocity, temperature, wall shear stress and wall heat transfer. Originality/value – The combined fluid dynamical, porous media and heat transfer effects investigated in this paper have to the authors’ knowledge not been studied. Such fluid dynamical problems find important application in petroleum recovery.

scholarly journals Sakiadis flow of Maxwell fluid considering magnetic field and convective boundary conditions

AIP Advances ◽  
2015 ◽  
Vol 5 (2) ◽  
pp. 027106 ◽  
Author(s):  
M. Mustafa ◽  
Junaid Ahmad Khan ◽  
T. Hayat ◽  
A. Alsaedi
Keyword(s):  
Magnetic Field ◽  
Boundary Conditions ◽  
Maxwell Fluid ◽  
Convective Boundary Conditions ◽  
Convective Boundary ◽  
Sakiadis Flow

Heat transfer in a porous saturated wavy channel with asymmetric convective boundary conditions

2015 ◽  
Vol 22 (1) ◽  
pp. 392-401 ◽  
Author(s):  
Q. Hussain ◽  
S. Asghar ◽  
T. Hayat ◽  
A. Alsaedi
Keyword(s):  
Heat Transfer ◽  
Boundary Conditions ◽  
Convective Boundary Conditions ◽  
Convective Boundary ◽  
Wavy Channel

Cooling of a Hot Torus

2015 ◽  
Vol 138 (4) ◽  
Author(s):  
Rajai S. Alassar ◽  
Mohammed A. Abushoshah
Keyword(s):  
Heat Transfer ◽  
Aspect Ratio ◽  
Boundary Conditions ◽  
Heat Transfer Rate ◽  
Governing Equation ◽  
Transfer Rate ◽  
Radial Direction ◽  
Convective Boundary Conditions ◽  
Convective Boundary ◽  
Toroidal Coordinates

The problem of a hot torus left to cool in a medium of known temperature is studied. We write the governing equation in toroidal coordinates and expand the temperature in terms of a series in the angular direction. The resulting modes in the radial direction are numerically obtained. We consider both isothermal and convective boundary conditions and study the effect of Biot number and aspect ratio on the heat transfer rate.

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