Few Important Definition On Aerodynamics :
- Angle Of Attack (AOA) : Generally , AOA is the angle between airfoil chord line (line of a body) & relative airflow which acts oppositely. The AOA is so important in fluid dynamics, becuse Aircraft take off, land & gain altitude always depends on that angle.
- Angle Of Incidence (AOI) : Longitudinal axis is making angle with aircraft (airfoil) wing is called Angle Of Incidence (AOI). It is also known as Manufacture angle.
- Laminar Airflow : In which the streamlines are smooth & fluid elements move regularly along a streamline.
- Turbulent Airflow : In which the streamlines are break up & fluid elements move in a random & irregularly.
- Shock Stall : Shock stall is the separation of boundary layer & making disturbance. It is occurred, when the airflow is near by critical mach number (0.8-0.9).
- Sonic Bang : When the aircraft (airfoil) move fast & faster at subsonic range, then toward to the sonic & supersonic range. when the airflow is passed sonic range or sonic range area is called sonic Bang.
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| Angle Of Attack with relative airflow |
