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swieity
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I have to conduct wind tunnel test on a naca0015 symmetric airfoil at different angles of attack and I am in search of a suitable mechanism to change the angle of attack of the airfoil.Please help.
The angle of attack of an airfoil is the angle between the chord line of the airfoil (a line connecting the leading and trailing edges) and the incoming airflow. It is an important parameter in determining the lift and drag of an airfoil.
Changing the angle of attack of an airfoil allows for control of the lift and drag forces acting on the airfoil. This is essential for the maneuverability and stability of an aircraft.
There are various mechanisms that can be used to change the angle of attack of an airfoil, including flaps, slats, leading edge devices, and trailing edge devices.
Flaps are hinged surfaces on the trailing edge of an airfoil that can be extended or retracted. When extended, they increase the camber of the airfoil, allowing for a higher angle of attack and thus increasing lift at lower speeds.
Slats are movable surfaces on the leading edge of an airfoil that can be extended or retracted. When extended, they increase the curvature of the airfoil, allowing for a higher angle of attack and thus increasing lift at lower speeds.