linear motion aerodynamics (moving air ). fundamentals of physics
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Linear Motion
Aerodynamics
(Moving Air )
Fundamentals of Physics
Basic Quantities
Charge - Electro-magneticMatter - Mass
TimeSpace - Length
Combinations of Basics
Velocity =
Density =
Force =
LengthTime
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 =
LengthTime
Mass
Length 2
Mass Length
Time
3
Momentum =Time
Mass Length
Derived Quantities
Dimensionality
Energy =Time
Mass Length 2
2
Pressure =2
Mass
Length
ForceArea
=
Time
Mass Flow = MassTime
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
The “Static” Atmosphere 1976 Standard Day Model
Determine Pressure, Temperature and Density
Moving Through the Atmosphere (Dynamics)
Forces on an Aircraft
Air
Air
Aircraft
AircraftAir Moves Past the Aircraft
Aircraft Moves Through the Air
Measured Forces Have The Same Value
Equivalent
Terminology for this Workshop
