Wind & Wet

Vertical axis wind turbine models

3 blade rotor

This was very similar to the 2 blade rotor with a NACA0018 symmetrical section aerofoil with the chord line curved to match the radius using the aerofoil plotter page.
Radius
220mm
Number blades
3
Blade chord
100mm
Blade thickness
18mm
Blade thickness (%)
18%
Blade length
190mm
Frontal area
83600mm2
Density
0.68
Blade area / frontal area
Compared to the 2 blade rotors this starts well and runs smoothly.
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