Stagnation point flows of non-Newtonian power law fluids

1968 ◽  
Vol 19 (1) ◽  
pp. 84-88 ◽  
Author(s):  
Sarweswar R. Koneru ◽  
Ram Manohar
Keyword(s):  
Stagnation Point ◽  
Power Law ◽  
Power Law Fluids

Lie Symmetry Analysis of Boundary Layer Stagnation-Point Flow and Heat Transfer of Non-Newtonian Power-Law Fluids Over a Nonlinearly Shrinking/Stretching Sheet with Thermal Radiation

2018 ◽  
Vol 19 (3-4) ◽  
pp. 415-426 ◽  
Author(s):  
G.C. Layek ◽  
Bidyut Mandal ◽  
Krishnendu Bhattacharyya ◽  
Astick Banerjee
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Thermal Radiation ◽  
Stagnation Point ◽  
Power Law ◽  
Stretching Sheet ◽  
Symmetry Analysis ◽  
Flow And Heat Transfer ◽  
Power Law Fluids ◽  
Self Similar

AbstractA symmetry analysis of steady two-dimensional boundary layer stagnation-point flow and heat transfer of viscous incompressible non-Newtonian power-law fluids over a nonlinearly shrinking/stretching sheet with thermal radiation effect is presented. Lie group of continuous symmetry transformations is employed to the boundary layer flow and heat transfer equations, that gives scaling laws and self-similar equations for a special type of shrinking/stretching velocity ($c{x^{1/3}}$) and free-stream straining velocity ($a{x^{1/3}}$) along the axial direction to the sheet. The self-similar equations are solved numerically using very efficient shooting method. For the above nonlinear velocities, the unique self-similar solution is obtained for straining velocity being always less than the shrinking/stretching velocity for Newtonian and non-Newtonian power-law fluids. The thickness of velocity boundary layer becomes thinner with power-law index for shrinking as well as stretching sheet cases. Also, the thermal boundary layer thickness decreases with increasing values the Prandtl number and the radiation parameter.

Free convection in power-law fluids near a three-dimensional stagnation point

1995 ◽  
Vol 16 (1) ◽  
pp. 62-68 ◽  
Author(s):  
Rama Subba Reddy Gorla ◽  
H.S. Takhar ◽  
A. Slaouti ◽  
Ioan Pop ◽  
Mahesh Kumari
Keyword(s):  
Free Convection ◽  
Stagnation Point ◽  
Power Law ◽  
Three Dimensional ◽  
Power Law Fluids
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