Kinesiology 2241A/B Lecture Notes - Lecture 23: Boundary Layer, Flow Velocity, Density Of Air
12 Jan 2016
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Document Summary
When there is no more lift and drag overwhelms the aircraft. Maximize lift force by creating an optimal angle of attack or shaping projectile like an airfoil. Minimize drag force with a moderate attack angle. Shape of the wing places a massive component in the lift force. Air density, if dense air you are able to have lots of lift. Greater area of pressure, greater size of wing, greater lift. As you go faster, lift increases exponentially. Not just linear correlation, it is exponential. Lift due to the spin on a spherical projectile. Projectile has a boundary layer of air that moves in the direction. Projectile"s boundary layer of air interfaces with oncoming air. High and low pressure zones develop due to difference in air of the spin flow flow velocities. Creates differences in pressures depending on how fast the object is moving on top and bottom.
