Originally Posted by
NAROBS
Who would have guessed ?
Apparently, a spinning propeller causes air to be at a lower pressure in front of the propeller and higher pressure behind.
So lower pressure, compared with the surrounding air-stream, must represent a slight suction force whilst higher pressure is a propulsive force.
Its what stops all of us going backwards for Christmas !
N
True for a power driven propeller, but for a wind turbine driven by the wind?