Some characteristics of unsteady two and three-dimensional 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 two-dimensional 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 three-dimensional studies show an entirely different behavior than the two-dimensional 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