Aerofoil terminology Flashcards
What is an aerofoil
A structure designed to obtain lift
What is camber
The curvature of the aerofoil surface
What is the chord line
A straight line joining the centre of curvatureand the trailing edge of an aerofoil
What is the mean camber line
A line joining the leading and the trailing edges of an aerofoil equidistant from the upper and lower surface
What is relative airflow
The surrounding airflow that is not affected by the passage of the aircraft through it.
What is angle of attack
Is the angle between the aerofoils chord line and the relative airflow.
What is angle of incidence
The angle between the chord line and the Longitudinal Datum Line.
What is streamlines
The path traced by a particle in a steady fluid flow.
What is the thickness/chord ratio
The maximum thickness of an aerofoil section expressed as a percentage of the chord length.
What is the centre of pressure
The position on the chord of an aerofoil where the Total Reaction acts
What is total reaction
The resultant of all aerodynamic forces acting on an
aerofoil.
