area of drag
21drag strip — a straight, paved area or course where drag races are held, as a section of road or airplane runway. Also, dragstrip, dragway /drag way /. [1950 55, Amer.] * * * …
22drag strip — noun Date: 1952 the site of a drag race; specifically a strip of pavement with a racing area at least 1/4 mile long …
23drag index — The profile drag at 100 ft/s divided by total wetted area …
24area rule — noun a process used in aerodynamics to reduce drag, typically by narrowing the fuselage at the wing roots …
25area rule — /ˈɛəriə rul/ (say airreeuh roohl) noun a method of design for obtaining minimum drag from the overall configuration of an aircraft …
26Zero-lift drag coefficient — In aerodynamics, the zero lift drag coefficient CD,0 is a dimensionless parameter which relates an aircraft s zero lift drag force to its size, speed, and flying altitude. Mathematically, zero lift drag coefficient is defined as CD,0 = CD − CD,i …
27skin friction/surface friction drag — Drag caused by the unevenness in the skin of a body. The layers of air near the surface are retarded, and the speed of the airflow increases as the distance from the skin increases. To reduce the skin friction, the surface should be smoothened to …
28Automobile drag coefficient — The drag coefficient is a common metric in automotive design, where designers strive to achieve a low coefficient. Minimizing drag is done to improve fuel efficiency at highway speeds, where aerodynamic effects represent a substantial fraction of …
29Lift-induced drag — In aerodynamics, lift induced drag, induced drag, vortex drag, or sometimes drag due to lift, is a drag force that occurs whenever a moving object redirects the airflow coming at it. This drag force occurs in airplanes due to wings or a lifting… …
30Parasitic drag — (also called parasite drag) is drag caused by moving a solid object through a fluid. Parasitic drag is made up of many components, the most prominent being form drag. Skin friction and interference drag are also major components of parasitic drag …
