Unsteady boundary layer flow and heat transfer over an exponentially shrinking sheet with suction in a copper-water nanofluid

2015 ◽  
Vol 22 (12) ◽  
pp. 4856-4863 ◽  
Author(s):  
Aurang Zaib ◽  
Krishnendu Bhattacharyya ◽  
Sharidan Shafie
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Boundary Layer Flow ◽  
Shrinking Sheet ◽  
Unsteady Boundary Layer ◽  
Copper Water ◽  
Flow And Heat Transfer ◽  
Exponentially Shrinking Sheet ◽  
Layer Flow

Unsteady boundary layer flow of nanofluid past a permeable stretching/shrinking sheet with convective heat transfer

2013 ◽  
Vol 228 (7) ◽  
pp. 1175-1184 ◽  
Author(s):  
A Malvandi ◽  
F Hedayati ◽  
DD Ganji ◽  
Y Rostamiyan
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Boundary Condition ◽  
Boundary Layer Flow ◽  
Shrinking Sheet ◽  
Convective Heating ◽  
Unsteady Boundary Layer ◽  
Flow And Heat Transfer ◽  
Dimensional Boundary ◽  
Layer Flow

This paper deals with the unsteady two-dimensional boundary layer flow and heat transfer of a nanofluid over a permeable stretching/shrinking sheet in the presence of heat generation/absorption. A convective heating boundary condition instead of a conventional prescribed temperature at the surface was employed to probe the variations of heat and concentration rates for different parameters including unsteadiness parameter, Brownian motion parameter, thermophoresis parameter and suction/injection. Results indicate that a dual solution exists for both stretching and shrinking sheets and that the unsteadiness and suction parameters may widen the ranges of stretching/shrinking parameter where the solution exists. Another noteworthy result is that the variational trend of heat transfer rate with unsteadiness parameter is opposite to the same trend of the prescribed temperature, which states the sensitivity of thermal boundary condition.

Sign in / Sign up

Export Citation Format

Share Document