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Linear Motion
Aerodynamics
(Moving Air )
Fundamentals
of
Physics
Basic Quantities
Charge - Electro-magnetic
Matter - Mass
Time
Space - Length
Combinations of Basics
Velocity =
Density =
Force =
Length
Time
Mass
Length
2
Mass Length
Time
3
Momentum =
Time
Mass Length
Derived Quantities
Dimensionality
Energy =
Time
Mass Length 2
2
Laws of Physics
Observations of the Relations
between Derived Quantities
Fundamentals
of
Aerodynamics
(Fluid Dynamics)
Used in Aerodynamics
Velocity =
Density = Force =
Length
Time
Mass
Length 2
Mass Length
Time
3
Momentum =
Time
Mass Length
Derived Quantities
Dimensionality
Energy =
Time
Mass Length 2
2
Pressure =
2
Mass
Length
Force
Area
=
Time
Mass Flow = Mass
Time
Torque = 2
Mass Length
Time
2
Temperature – Basic or Derived ?
Density -> mass and volume
Pressure -> momentum (mass x velocity)
Temperature -> kinetic energy (mass x velocity )
2
Conservation Laws
Observations of the Relations
between Derived Quantities
For any fluid system:
1) Mass is neither created nor destroyed.
Conservation of Mass - Continuity
2) Momentum is neither created nor destroyed.
Conservation of Momentum (3 directions)
3) Energy is neither created nor destroyed.
Conservation of Energy
mass
mass
mass x velocity
mass x velocity
mass x velocity
mass x velocity
2
2
Mass Flow Rate
r
r
r
The “Static” Atmosphere
1976 Standard Day Model
Determine Pressure, Temperature
and Density
Moving Through
the
Atmosphere
(Dynamics)
Forces on an Aircraft
Air
Air
Aircraft
Aircraft
Air Moves Past the Aircraft
Aircraft Moves Through the Air
Measured Forces Have The Same Value
Equivalent
Terminology
for this
Workshop
Aerodynamics. flippatterncn5tm5ttnj6nmnynyppt
Aerodynamics. flippatterncn5tm5ttnj6nmnynyppt

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Aerodynamics. flippatterncn5tm5ttnj6nmnynyppt