Hi awblain...
I may be pedantic, but I think it is important. The aircraft hasn't an "effect" on airflow, the air is still prior to the entry of the airplane. It is the energy of the a/c that develops airflow. The visible effects are the results of energy being imparted to the airmass. Some may think it unimportant whether the air is magically flowing, or is instead disturbed by, the mass driving through it. Strictly speaking, it is the wing that is "flowing" (moving) not the air. The streamlines move downward (wash) long after the wing is gone. It is this transition in angle of streamline that is sensitive to rate of development of pressure, or, velocity of the wing relative to the airmass. How quickly it turns (quantity of lift) is related to velocity and angle of attack.
Dynamic pressure is just compression expressed as a result of motion. To deny there is compression of the airmass as the wing quickly enters is not correct, imho. Mass moves as a result of collision, Third Law? The Air Mass resists motion, First Law, viscosity. Streamline curves, reluctantly, First Law? It retains its shape, Second Law?
There is no wing tip in the standard model drawing, don't know what that's about. Not sure what vortices have to do with lift. Like waterspouts, they are interesting.
Regards
Last edited by Lyman; 14th Nov 2012 at 23:24.