onsdag 19 december 2012
Tornados and New Theory of Flight
The New Theory of Flight identifies rotational separation at the trailing edge as the physical mechanism allowing a wing to generate large lift at the price of small drag. Rotational separation is illustrated above left in the case of flow of air past a circular cylinder.
The swirling flow is similar to the swirling flow of a tornado generated by rising hot air sucking air
towards a low pressure center in a spiraling motion, illustrated above right.
NBCNEWS reports today on Man-made tornadoes could power the future: