Boundary layer measurements on a two-dimensional wing with flap and a comparison with calculations
Abstract
Measurements performed on a wing flap configuration which was so designed that flow separations occur nowhere apart from a small laminar separation bubble on the wing nose are presented and discussed. The measurements comprise surface pressure measurements, boundary layer and wake traverses at 16 stations, and flow visualization tests to establish the presence of separation bubbles and boundary layer transition regions. The data resolve the various flow phenomena sufficiently well to provide a significant test case for calculation methods for the flow around multielement airfoils. Comparison with such a calculation method showed satisfactory agreement in many respects. A need for improved modelling was found to exist in some regions, particularly for the wing wake above the flap.
- Publication:
-
In AGARD Turbulent Boundary Layers 14 p (SEE N80-27647 18-34
- Pub Date:
- January 1980
- Bibcode:
- 1980tbl..agarT....V
- Keywords:
-
- Boundary Layer Flow;
- Boundary Layers;
- Wing Flaps;
- Wings;
- Flow Equations;
- Flow Visualization;
- Inviscid Flow;
- Laminar Boundary Layer;
- Low Speed Wind Tunnels;
- Pressure Gradients;
- Shear Layers;
- Wing Loading;
- Fluid Mechanics and Heat Transfer