Folie 14 von 21
Notizen:
The pressure distribution on the upper surface at an angle of attack of 16 degrees. (that is shortly before flow separation).
The leading edge, therefore the incoming flow, is on the bottom, and the sequence of the shading goes from black, for lowest pressure (meaning high lift generation) towards white, for areas of little lift generation.
In the upper diagram the aerofoil without flaps is shown, in the lower diagram that with flaps attached.
You can see in the upper diagram as well known, that close to the leading edge the area with the lowest pressure, is situated.
Along the borders of the aerofoil, the effect of the 'trailing vortices' can be observed. This is basically the same for the aerofoil with flaps attached, only that there are some minor disturbances due to the flaps.
