Fundamentals of Lift 1: How Lift is Generated

Intuitive explanation of how a wing generates lift that is consistent with the laws of physics. Most illustrations and numbers from Computational Fluid Dynamics simulations of a flat airfoil from a balsa glider and the NACA2412 airfoil from a Cessna 172. Note: There is nothing wrong with Bernoulli’s principle when used correctly. This is a massively updated version of a previous video. Fundamentals of Lift for pilots play list: https://www.youtube.com/playlist?list=PL3ea3YrO-K5iBBX-IWrHFQz-NWJZlt2kg CFD models – free to download and use: https://drive.google.com/drive/folders/1RCcCqI2kAcE7BhTyj1RKV44wR_2dYPBR?usp=drive_link Chapters 00:00 Introduction 1:32 First airfoil to simulate – balsa glider 2:30 Simulated “wind tunnel” 3:03 Pressure around flat airfoil 4:22 Simulated lift vs. glider weight 5:09 Streamlines and flow curvature – flat airfoil 6:02 Newton explains pressures 8:03 NACA Wind tunnel showing curvature 8:27 Air lifts foil up, foil pushes air down 9: 11 Something got missed 9:52 Vertical flows – simulation space too small 11:19 Air deflection downward = lift 11:58 Experiment, quadcopter flying in a box 13:42 Flow velocities around flat foil – speeds agree with Bernoulli 15:00 Cessna 172 airfoil – NACA 2412 expected lift coefficient 16:12 Pressure around NACA 2412 – simulated lift coefficient 17:39 Streamlines and flow curvature 18:12 Velocity around NACA 2412 18:59 Newton for the win. Air down force = lift up force 19:52 Sanity check – simulated vs real 172 weight 20:23 Why air flow follows top surface 22:08 Tools used for analysis 23:30 Summary: Newton rules, fairy tales drool. Note: I ain't no FAA instructor. Nothing in this video is intended to help you pass an FAA exam - written or oral.