[Jorg]

Hy everyone,


I´ve been asked to do some design changes in a helical-bladed VAWT at the research group of my school. The issue is that i got a baseline in which the blade geometry was created just by performing a "section protrusion" with three horizontal airfoils with a phase shift of 30 deg between airfoils. Does anyone knows about any procedure or standard technique for the generation of such geometries?

Thanks for reading!