Less pressurized-bernoullis principle states that as fluids move faster, they decrease in pressure. thus, the faster moving air between buildings would be of lesser pressure.
lift on an airplane follows this principal because the wing is shaped such that the upper side has a curve while the lower side is flat. this causes air on top of the wing to move faster than the air moving the wing. the lower pressure on top of the wing causes airplanes to move upward as the higher pressure below the wing pushes up on the plane.
