Prediction of boundary-layer characteristics of an oscillating airfoil
Abstract
The evolution of unsteady boundary layers on oscillating airfoils is investigated by solving the governing equations by the Characteristic Box scheme. The difficulties associated with computing the first profile on a given time line, and the velocity profiles with partial flow reversal are solved. A sample calculation is performed for an external velocity distribution typical of those found near the leading edge of thin airfoils. The viability of the calculation procedure is demonstrated.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- July 1981
- Bibcode:
- 1981STIN...8128391C
- Keywords:
-
- Boundary Layer Flow;
- Laminar Boundary Layer;
- Oscillating Flow;
- Unsteady Flow;
- Velocity Distribution;
- Airfoils;
- Boundary Layers;
- Leading Edges;
- Pressure Gradients;
- Fluid Mechanics and Heat Transfer