What Is AERO DYNAMICS Flashcards
•Is the study of motion of
any object in the air and all
the forces acting on it
AERO DYNAMICS
•It is known as the applied
aerodynamics
•It speaks about the operations
related to the application of aircraft
AERONAUTICS
Atmosphere
Constituents -Layers-Parameters
Atmopheric constituents
Oxygen Gas 28.99% nitrogen gas.78.08%.insert gas.Argon.0.94%.hydrogen.0.01%.helium.0.04%.Carbon Dioxide.0.04%
Atmospheric layers
Exosphere -ionosphere-stratosphere-troposphere
Atmospheric parameters
Pressure-temperature-density
Four forces acting on an aircraft
lift-weight-trust-drag
An aeroplane like all bodies has masswith the aircraft stationary on ground
Weight
The force of gravity acts on all bodies near the surface of the earth
Lift
The physisyof lift
Bernoulli’s princile
Newton’s third law of motion
Coanda effect
A swiss scientist of the eighteenth century discovered that as fluid (air)
Bernoulli’s princple
Refers to pressure exerted by a mass of stationary air
Static pressure
It is the pressure associated with moving air
Dynamic pressure
Equal transit thory
Leading Edge wing Chord Trailing edge
Defined to be the angle of the wing relative to the airflow
Angle of attack
Is defined to be the angle between the chord linr and the longitudinal axis
Angle of incidence
Sir isaac newton explains lift generation through the 3rd Law of motion which is the
Law of inter action
The angle throug which an airstream is defleced by any lifting surface
Dawnwash angle
It is the tendency of jet of fluid (gas/liquid) to curve towards a surface
Coanda effect
Is defined to be the force which moves an aircraft through the air
Thrust
The impact of the air against the surface of the airplane applies force
Drag
Types of drag
Parasite drag induced drag
All drag that is not associated with the production lift
Parasite drag
A drag which result from lift generation also known as vortex drag
Induced drag
It is the drag which results to tha sums both parasitic and induced drag
Total drag
Types of parasite drag
Skin friction drag form or pressure drug interference drag
Main parts of an airplane
Powerplant landing gear wings empennage fuselage
Central body of an airplane
Fuselage
Attached to each side of the fuse lage and are the main lifting surface
Wings
Include the entire tail group/section and consist of fixed surface
Empennage
Principle support of the airplane when parked taxiing taking off or landing
Landing gear
Usually include both engines ang the propeller the primary function
Powerplant
Primary flight control system
Aileron rudder elevator
Control roll about the longitudinal axis
Ailerons
Movement of the aircraft about its vertical axis this motion called yaw
Rudder
Is the natural and undesirable tendency for an aircraft to yaw
Adverse Yaw
Control pitch about the lateral axis
Elevator
Axes of an aircraft
Longitudinal axis-Vertical axis-Lateral Axis-
Secondary flight control
Flaps-trimtabs balance tabs anti servo tabs ground adjustable tabs spoiler slots slats
In board trailing edge of the wings
Flaps
The plain tabs is one of the most common types of tabs used in small single engine aircraft
Trim tabs
Trailing edge of the primar control surface
Balance tabs
Are similar to balance tabs they move in the opposite direction
Anti servo tabs
Only adjustable on the ground
Ground adjustable tabs
Upper trailing edge of the wing
Spoiler
Outer leading edge of the wing forward of ailerons
SLats/slots
