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Abbreviations
- A :
-
Rotor area
- a :
-
Axial induction factor
- a′:
-
Tangential induction factor
- B :
-
Number of blades
- C d :
-
Drag coefficient
- C l :
-
Lift coefficient
- C p :
-
Power coefficient
- C T :
-
Thrust coefficient
- C θ :
-
Tangential velocity in far wake
- D :
-
Aerodynamic drag
- L :
-
Aerodynamic lift
- M R :
-
Rotor shaft torque
- M :
-
Bending moment, torque
- P :
-
Power
- p :
-
Load
- R :
-
Blade radius
- r :
-
Local radius on blade
- T :
-
Thrust
- u :
-
Axial velocity in the rotor plane
- u 1 :
-
Axial velocity in far wake
- V o :
-
Wind speed
- V rel :
-
Relative velocity to blade
- W:
-
Induced velocity
- α :
-
Angle of attack
- θ :
-
Local blade angle with rotor plane
- ρ :
-
Air density
- σ :
-
Solidity, material stress
- Ф:
-
Flow angle
- ω :
-
Angular velocity
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Hansen, M.O.L. (2013). Wind Power, Aerodynamics and Blade Technology 2. In: Kaltschmitt, M., Themelis, N.J., Bronicki, L.Y., Söder, L., Vega, L.A. (eds) Renewable Energy Systems. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-5820-3_79
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