Combined Darrieus-Savonius Wind Turbine

[Matthias Maasch 21]

Hi folks,

 

it's been a a while since the last wind turbine was posted. So here we are, a fully parametric Darrieus-Savonius Wind Turbine.

 

 

This type of wind turbine combines two types of blades, the S-shaped Savonius-Vanes (viewed from above) and the curved arerofoil Darrieus-Blades (shape of an egg beater). Whereas the Savonius-Vanes are drag-driven, the Darrieus-Blades will experience a lifting force when wind is blowing across the turbine. Since a pure Darrieus Wind Turbine is (mostly) not able to start without an initial net rotational force, the Savonius-Vanes are added to make the turbine self-starting. This system is omnidirectional and does not need special yaw mechanisms to rotate itself towards the wind direction.This type of wind turbine is used in many different ways, as a small device in your privat garden, up to larger systems to generate electricity for higher demands, but most the time one would choose this system whenever low costs are much more important than effiency.

 

Darrieus_Savonius_Wind_Turbine.fdb

 

You can find parameters for the tower, the Savonius-Vanes and the Darrieus-Blades. The new Brep functionally is used to join all different parts in one final object, by using boolean operations. Moreover this new function allows to easily create fillets between all single parts. As the Brep can be exported to STL or STEP format, the final model is ready to be used by external CFD-codes.

 

 

Cheers

 

Matthias