compressibility drag

См. также в других словарях:

• compressibility drag rise Mach number — That Mach number (beyond critical Mach number) in which the coefficient of drag increases by 0.005. It is the limit of the normal economic operation of the aircraft. Drag coefficient behavior at high showing critical mach number and… …   Aviation dictionary

• compressibility drag — A parasite drag caused by the extraordinary compression of air ahead of an aircraft at high speeds. An aircraft not designed for sonic flights is especially prone to encounter this phenomenon as it approaches the speed of flight. The effects are… …   Aviation dictionary

• Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% …   Wikipedia

• Compressibility — This article is about thermodynamics and fluid mechanics. For other uses, see Compression (disambiguation). Incompressibility redirects here. For the property of vector fields, see Solenoidal vector field. Thermodynamics …   Wikipedia

• compressibility — A general term covering the effects resulting from the fact that the density of air, and gases in general, varies with pressure and hence with wind speed. The effects become apparent in the changes in the values of lift and drag coefficients of a …   Aviation dictionary

• compressibility effect — The sudden increase in the total drag of an airfoil in transonic flight caused by formation of a shock wave on the surface …   Aviation dictionary

• critical drag rise Mach number — The free stream Mach number at which because of shock wave, the coefficient of drag for a given angle of attack increases rapidly. This increase in drag value should be at least 0.005. Also called a compressibility drag rise Mach number …   Aviation dictionary

• Model aircraft — A die cast Boeing 747 400 model. Model aircraft are flying or non flying models of existing or imaginary aircraft using a variety of materials including plastic, diecast metal, polystyrene, balsa wood, foam and fibreglass. Flying designs range… …   Wikipedia

• Lockheed P-38 Lightning — P 38 redirects here. For other uses, see P 38 (disambiguation). P 38 Lightning P 38H 5 LO, AAF Ser. No. 4 …   Wikipedia

• fluid mechanics — an applied science dealing with the basic principles of gaseous and liquid matter. Cf. fluid dynamics. [1940 45] * * * Study of the effects of forces and energy on liquids and gases. One branch of the field, hydrostatics, deals with fluids at… …   Universalium

• P-38 Lightning — infobox Aircraft name =P 38 Lightning type =Heavy fighter manufacturer =Lockheed caption = designer =Kelly Johnson first flight =27 January 1939 introduction = 1941 retired = 1949 primary user = United States Army Air Force more users = produced …   Wikipedia