Quote:
Originally Posted by Madact
Yeah, I don't think the 'wake-filling' approach is the way to go here at all...
It is interesting that the turning vanes are an improvement over the truncated wing though. Perhaps in the case of a wing, the plain truncated case can't set up a stable recirculation behind it as you find with a ground vehicle?
OTOH an increase in drag compared to an unmutilated wing but a decrease in drag compared to a truncated wing does sound promising if you aren't considering a full boat-tail  though if the figures are indicative, it sounds like a kammback would work better. Extrapolating numbers from an airfoil in a free stream to a bluff body in ground effect is a bit sketchy though... |
Yes,there exists a jet pumping action in free flight which doesn't occur in ground effect.The axi-assymetrical flow kills off the performance of many tricks which DO work up in free flow.
Kamm recommended the 'K-form' because it DID work in ground proximity.And its a mutilated half-body.
