AirFlow Flashcards
Draw the Coanda Effect
(Dribble) high to low
Where is the stagnation point on an airfoil?
The leading edge
What does the venturi tube tell us? In terms of velocity?
V increases as A decreases
What does the venturi tube tell us? In terms of velocity?
V increases as A decreases
What is the mass flow equation?
Density x area x speed
What is the mass flow equation?
Density x area x speed
What happens to Ps and q according to Bernoulli?
Q increases as Ps decreases
What happens to Ps and q according to Bernoulli?
Q increases as Ps decreases
At the stagnation point what happens to the Ps and the q
Ps increases and q decreases
At the stagnation point what happens to the Ps and the q
Ps increases and q decreases
Draw and aerofoil including : mean camber, max camber, chord line and thickness
Where does the stagnation point move when the angle of attack increases?
Down
Where does the Centre of Pressure move as the angle of attack increases?
Towards the leading edge (up)
On a cambered wing, what is the angle of attack when the CL is zero?
-4
Whats the name of the angle of attack that causes an aircraft to stall?
Critical angle
On a symmetrical wing, what happens to the centre of pressure as the angle of attack increases?
Nothing
Consider a low subsonic flow through a stream tube. An increase in the temperature of the airflow will…
Not change.
Assuming constant IAS, when an aeroplane leaves ground effect: downwash blanks.
Increases
What type of stability is when the force needed by the pilot to change speed is the same as the force needed to counter the aircraft reaction to the speed change.
