MHD mixed convective radiative flow of Eyring‐Powell fluid over an oscillatory stretching sheet using bivariate spectral method on overlapping grids

Heat Transfer ◽  
2020 ◽  
Vol 50 (1) ◽  
pp. 655-687
Author(s):  
Musawenkhosi P. Mkhatshwa ◽  
Sandile S. Motsa ◽  
Precious Sibanda
Keyword(s):  
Spectral Method ◽  
Stretching Sheet ◽  
Overlapping Grids ◽  
Oscillatory Stretching Sheet

scholarly journals Theoretical study of unsteady oblique stagnation point based Jeffrey nanofluid flow over an oscillatory stretching sheet

2020 ◽  
Vol 12 (11) ◽  
pp. 168781402097188
Author(s):  
Aziz Ullah Awan ◽  
Sana Abid ◽  
Nadeem Abbas
Keyword(s):  
Differential Equations ◽  
Stagnation Point ◽  
Stretching Sheet ◽  
Fluid Model ◽  
Skin Friction Coefficient ◽  
Jeffrey Fluid ◽  
Fluid Parameter ◽  
Jeffrey Nanofluid ◽  
Physical Quantities ◽  
Oscillatory Stretching Sheet

The numerical analysis for two-dimensional oblique stagnation point flow with the magnetohydrodynamic effects of an incompressible unsteady Jeffrey fluid model caused by an oscillatory and stretching sheet has been presented in this article. The Brownian motion and thermophoresis impacts are taken into consideration. The similarity transformation technique is implemented on the governing partial differential equations of the Jeffrey fluid model to obtain a set of nonlinear coupled ordinary differential equations and then these resulting equations are numerically computed with the help of BVP-Maple programming. The variation in the behavior of velocity, temperature, and concentration profile influenced by the governing parameters, has been explicitly explored and displayed through graphs. The numerical results are highlighted in tabular form and through these outcomes, the skin friction coefficient, Nusselt number, and Sherwood number have been investigated. These physical quantities rise for gradually increasing the Hartmann number and ratio of relaxation to retardation time. However, these reduce for gradually growing Jeffrey fluid parameter.

Unsteady Flow of Third Grade Fluid over an Oscillatory Stretching Sheet with Thermal Radiation and Heat Source/Sink

2015 ◽  
Vol 4 (4) ◽  
Author(s):  
Nasir Ali ◽  
Sami Ullah Khan ◽  
Zaheer Abbas
Keyword(s):  
Heat Source ◽  
Thermal Radiation ◽  
Stretching Sheet ◽  
Third Grade ◽  
Third Grade Fluid ◽  
The Third ◽  
Fluid Parameter ◽  
Grade Fluid ◽  
Source Sink ◽  
Oscillatory Stretching Sheet

AbstractThe aim of this article is to investigate the unsteady boundary layer flow and heat transfer analysis in a third grade fluid over an oscillatory stretching sheet under the influences of thermal radiation and heat source/sink. The convective boundary condition at the sheet is imposed to determine the temperature distribution. Homotopy analysis method (HAM) is used to solve dimensionless nonlinear partial differential equations. The effects of involved parameters on both velocity and temperature fields are illustrated in detail through various plots. It is found that the amplitude of velocity decreases by increasing the ratio of the oscillation frequency of the sheet to its stretching rate and Hartmann number while it increases by increasing the third grade fluid parameter. On contrary, the temperature field is found to be a decreasing function of the third grade fluid parameter.

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