Vortex Generators: Improving Aircraft Performance
Vortex generators on the upper side of the wing surface will:
A) increase the critical Mach Number.
B) decrease the span wise flow at high Mach Numbers.
C) decrease the intensity of shock wave induced air separation.
D) increase the magnitude of the shock wave.
Vortex generators on the upper side of the wing surface will decrease the intensity of shock wave induced air separation and increase the critical Mach Number. So, the correct answer is C.What's Vortex generation?
Vortex generators are small devices that are placed on the upper side of an aircraft's wing surface. They are used to improve the aircraft's performance at high speeds. The primary function of vortex generators is to control the airflow over the wing surface, which helps to reduce drag and increase lift. When placed on the upper side of the wing surface, vortex generators can increase the critical Mach number, which is the speed at which air flowing over the wing surface reaches supersonic speed. This helps to prevent the formation of shock waves, which can lead to air separation and reduced lift. Vortex generators also help to reduce the intensity of shock wave-induced air separation and decrease span wise flow at high Mach numbers, which improves the aircraft's stability and handling.
What is the primary function of vortex generators on an aircraft's wing surface?
The primary function of vortex generators on an aircraft's wing surface is to control the airflow, reduce drag, increase lift, and improve the aircraft's performance at high speeds.