Quote:
Originally Posted by freebeard
Boxed cavity?
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Yes, I guess so, a box cavity has the ground plane to play off of, and this has it's pick-up truck like rear deck.
We my have touched on this once before in discussion of the Prius roof, Viper coupe roof and others. We determined then that it was for ease of entry headroom and not much else.
This would not be the case of the "Rush".
Another double bubble sports car roof below.
New Supra?
https://jalopnik.com/are-the-toyota-...new-1789423366
If I were to label the Rush roof, it would be "
separation point containment".
Where the side vanes contain an air pressure pocket that the air farther above moves over. More akin to the half cover on a pick-up truck.
https://www.google.com/url?sa=i&rct=...43591515610942
https://www.google.com/url?sa=i&rct=...43591515610942
Contain the air pocket, and you prevent it from spilling over the sides and creating a vortex via the differing air pressures of air flowing past the car's body.
You still have detachment of roof air and the drag or resistance between the two bodies of air so I do not see this as superior to maintaining attachment, it is just not as terrible as it looks at first.
It is a side canopy box cavity (buttress/vane) open to the top "separation point containment" indentation.
"Spoon Roof".