During my plane flights I passed the time rediscovering the equations of lift.
The physical intuition I’ve found, is for plane flight, the plane must move faster in the direction parallel to the ground than the time it takes for those air molecules under the plane to move away and deform around the wing at some average velocity. In this manner, the plane can push off those air molecules as they’re unable to move out of the way quick enough to escape the force. Similar behavior to skipping a stone on water. For lift, you apply torque on the wing by changing the angle of attack. This also leads to some interesting ideas on wind.
The physical intuition I’ve found, is for plane flight, the plane must move faster in the direction parallel to the ground than the time it takes for those air molecules under the plane to move away and deform around the wing at some average velocity. In this manner, the plane can push off those air molecules as they’re unable to move out of the way quick enough to escape the force. Similar behavior to skipping a stone on water. For lift, you apply torque on the wing by changing the angle of attack. This also leads to some interesting ideas on wind.