THE BOUNDARY LAYER FLOW OF A NON-NEWTONIAN FLUID NEAR A SPINNING CONE

1962 ◽  
Author(s):  
Subhendu K. Datta
Keyword(s):  
Boundary Layer ◽  
Newtonian Fluid ◽  
Boundary Layer Flow ◽  
Layer Flow

scholarly journals Unsteady boundary layer flow of a casson fluid past an oscillating vertical plate with constant wall temperature

2015 ◽  
Vol 11 (1) ◽  
Author(s):  
Asma Khalid ◽  
Ilyas Khan ◽  
Sharidan Shafie
Keyword(s):  
Boundary Layer ◽  
Newtonian Fluid ◽  
Wall Temperature ◽  
Boundary Layer Flow ◽  
Vertical Plate ◽  
Casson Fluid ◽  
Unsteady Boundary Layer ◽  
Constant Wall Temperature ◽  
Casson Fluid Model ◽  
Layer Flow

The unsteady boundary layer flow is presented for non-Newtonian fluid flow past an oscillating vertical plate with constant wall temperature. The Casson fluid model is used to distinguish the non-Newtonian fluid behavior. The governing partial differential equations corresponding to the momentum and energy equations are transformed into dimensionless forms, by using suitable transformations. Laplace transform method is used to find the exact solutions of these equations. The expressions for shear stress in terms of skin friction and the rate of heat transfer in terms of Nusselt number are also obtained. Numerical results of velocity and temperature profiles with various values of embedded flow parameters are shown graphically and their effects are discussed in detail. 

scholarly journals Unsteady Boundary-Layer Flow over Jerked Plate Moving in a Free Stream of Viscoelastic Fluid

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Sufian Munawar ◽  
Ahmer Mehmood ◽  
Asif Ali ◽  
Najma Saleem
Keyword(s):  
Boundary Layer ◽  
Newtonian Fluid ◽  
Viscoelastic Fluid ◽  
Boundary Layer Flow ◽  
Analytic Solution ◽  
Flat Surface ◽  
Dimensionless Time ◽  
Unsteady Boundary Layer ◽  
Flow Properties ◽  
Layer Flow

This study aims to investigate the unsteady boundary-layer flow of a viscoelastic non-Newtonian fluid over a flat surface. The plate is suddenly jerked to move with uniform velocity in a uniform stream of non-Newtonian fluid. Purely analytic solution to governing nonlinear equation is obtained. The solution is highly accurate and valid for all values of the dimensionless time0≤τ<∞. Flow properties of the viscoelastic fluid are discussed through graphs.

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