This is on-topic.
The infinity wing is very close to what you have. Adding a triangular end plate might be enough. It presents a concave curved surface, but that might not be important.
Basically it induces a vortex over the top third of the wheel's face, creating an air curtain without the external duct.
__________________
.
.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
________________
.
.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
|