As the angle of attack is increased on a high-performance airfoil, a small amount of separation occurs near the leading edge. This separation causes the boundary layer to transition from laminar to ...

In this historical photo from the U.S. space agency, taken on March 15, 1929, a quartet of NACA staff — from left to right: Eastman Jacobs, Shorty Defoe, Malvern Powell, and Harold Turner — conduct ...

You know how it is. You’re working on a project that needs to move air or water, or move through air or water, but your 3D design chops and/or your aerodynamics knowledge hold you back from doing the ...

Journal of Urban and Environmental Engineering, Vol. 5, No. 1 (January to June, 2011), pp. 15-23 (9 pages) Abstract: Wind energy is a very popular renewable energy resource. In order to increase the ...

Fifty years ago, an aircraft hangar at Ohio's Lewis Research Center (now Glenn) changed markings, from NACA to NASA. But aeronautical research continues at NASA centers to this day. NASA Glenn ...

In this historic photo from the U.S. space agency, this mid-1950s photograph shows the Douglas D-558-2 and the North American F-86 Sabre chase aircraft in flight. Both aircraft display early examples ...

Illustration of the airflow along an airfoil that exhibits leading-edge stall behavior. Notice the formation of a “short bubble” at a critical point along the leading edge. When the AOA is increased ...