
TRANSITION NOTES ON THE FLAP ELEMENT
1st
AIAA CFD High Lift Prediction Workshop
Click on the photos to see the lower (left) and upper
(right) surfaces of the flap.
Spanwise Pressure Taps
The spanwise pressure taps on the flap were situated toward the back of
the flap at x/c = 0.749 and x/c = 0.994. A surface plot of the pressures
at x/c = 0.749, seen here,
shows how the pressures change along the span with a change in angle
of attack. Note how there is a distinct change in the character of
the pressures as you approach zero degrees AOA, and again at higher angles
of attack. The decrease in the pressure coefficient at high angles
of attack (i.e., increased lift) occurs at the same angles at which the
slat is unloading, between 34.77 and 35.03 degrees. The same type of
plot at the x/c = 0.994 station, very close to the trailing edge, is seen
here
. At this station the spanwise distortion of the flow is more
apparent due to the smaller scale.
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Page Curator and NASA Official Responsible for Content
Li Wang
Last Updated
August 15, 2011
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