Some characteristics of unsteady two and threedimensional reversed boundary layer flows
Abstract
In this numerical study, a coordinate transformation was obtained to remove leading edge and impulsive singularities which occur in problems involving unsteady reversed boundary layers. The twodimensional flow exhibited a regular growth of the boundary layer for early times but then developed an excessive amount of growth at the flow reversal point as time increased. The threedimensional studies show an entirely different behavior than the twodimensional flow; at the point of flow reversal the boundary layer showed very little growth and attained a steady state and remained that way.
 Publication:

12th Fluid and Plasma Dynamics Conference
 Pub Date:
 July 1979
 Bibcode:
 1979fpdy.conf.....D
 Keywords:

 Boundary Layer Flow;
 Flow Characteristics;
 Rotary Wings;
 Three Dimensional Flow;
 Two Dimensional Flow;
 Unsteady Flow;
 Boundary Layer Equations;
 Flow Velocity;
 Leading Edges;
 Separated Flow;
 Singularity (Mathematics);
 Transformations (Mathematics);
 Velocity Distribution;
 Wall Flow;
 Fluid Mechanics and Heat Transfer