Vertical axis wind turbine models
H rotor VAWT model
This is a larger model with a lower solidity compared to the previous models. The blades were made with a wooden leading edge and a cardboard trailing edge to give an approximately symmetrical aerofoil section.
Radius |
200mm |
|
Number blades |
2 |
|
Blade chord |
93mm |
|
Blade thickness |
15mm |
|
Blade thickness (%) |
16% |
|
Blade length |
580mm |
|
Frontal area |
232000mm2 |
|
Density |
0.47 |
Blade area / frontal area |
This was very reluctant to self start or even turn in low winds. I nearly gave up on it, but tried it on a windy day and it took off.
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