Boundary layer development on a wedge impulsively set into motion
Abstract
The problem of impulsivelysetintomotion wedgetype (FalknerSkan) flows is formulated in a new set of scaled coordinates. The boundary layer development occurring in two stages is described. The solution for the impulsively started flat plate is obtained and compared with existing solutions to this special case in order to verify the method of solution. Flows involving an adverse pressure gradient are considered in detail to determine the information that can be gained from the present solution regarding downstreammoving unsteady boundary layer separation. Cases where separation does not occur are identified. It is shown that if separation occurs in the later phase of flow development, it must move with a velocity lower than the local speed at the edge of the boundary layer.
 Publication:

SIAM Journal of Applied Mathematics
 Pub Date:
 April 1980
 Bibcode:
 1980SJAM...38..215W
 Keywords:

 Boundary Layer Separation;
 Computational Fluid Dynamics;
 FalknerSkan Equation;
 Wedge Flow;
 Flat Plates;
 Flow Velocity;
 Pressure Gradients;
 Shear Flow;
 Fluid Mechanics and Heat Transfer