Abstract
In this
experiment we studied the effect of a flaps and a slat on a chambered wing on
the lift, drag and moment coefficients. Also we studied their effect on flight
performance and the effect of other high lift devices and their working
principle. We calculated the coefficients of lift, drag and moment for
different angles of attack and different flaps angle.
Introduction
High-lift
device is a component or mechanism which increase lift beyond that obtainable
from the main aircraft components. The device may be a fixed component or a
movable mechanism which is deployed when required. Common high lift devices
include wing flaps and slats. Leading edge root extensions and boundary layer
control systems are less commonly used.
Discussion
The higher the
angle of the flaps the more lift we get for large angles of attack and the drag
and moment coefficients increases
Also, the
higher angle of the flaps with the slot is open the more lift we get for higher
angles of attack and the drag and moment coefficients increases
For the same
angle of the flaps the values of lift coefficients were higher when the slat is
opened for higher angles of attack only
Conclusion
The flaps are
used to increase the lift for high angles of attack
The slats and
slots are used to increase the stall angle
LERX are used
in advanced jet fighter to produce more lift
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