- Prandtl theory
- теория Прандтля
English-russian dictionary of physics. 2013.
Prandtl theory
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Prandtl, Ludwig — born Feb. 4, 1875, Freising, Ger. died Aug. 15, 1953, Göttingen, W.Ger. German physicist, considered the father of aerodynamics. He taught at the University of Göttingen (1904–53). His 1904 discovery of the boundary layer at the surface of a body … Universalium
Prandtl–Glauert singularity — F/A 18 with vapor cone The Prandtl–Glauert singularity is the prediction by the Prandtl–Glauert transformation that infinite pressure conditions would be experienced by an aircraft as it approaches the speed of sound. Because it is invalid to… … Wikipedia
Ludwig Prandtl — Infobox Scientist name = Ludwig Prandtl |200px caption = Ludwig Prandtl birth date = birth date|1875|2|4|df=y birth place = Freising, Germany death date = death date and age|1953|8|15|1875|2|4|df=y death place = Göttingen, Germany residence =… … Wikipedia
Ludwig Prandtl — Portrait photographique de Ludwig Prandtl (1937). Naissance 4 février 1875 Freising ( … Wikipédia en Français
Dynamo theory — In geophysics, dynamo theory proposes a mechanism by which a celestial body such as the Earth or a star generates a magnetic field. The theory describes the process through which a rotating, convecting, and electrically conducting fluid can… … Wikipedia
Lifting-line theory — or Lanchester Prandtl wing theory was published by Ludwig Prandtl in 1918–1919 after working with Albert Betz and Max Munk on the problem of a useful mathematical tool for examining lift from real world wings. In this model, the vortex strength… … Wikipedia
Estimate of the Situation — The Estimate of the Situation [The term estimate of the situation is generic, often used in military intelligence to describe a type of early report on an important subject.] was a document supposedly written in 1948 by the personnel of United… … Wikipedia
Project Sign — was an official U.S. government study of unidentified flying objects (UFOs) undertaken by the United States Air Force in late 1947 and dissolved in late 1948. Formally, Project Sign came to no conclusion about UFOs [see Blum, Howard, Out There:… … Wikipedia
D'Alembert's paradox — In fluid dynamics, d Alembert s paradox (or the hydrodynamic paradox) is a contradiction reached in 1752 by French mathematician Jean le Rond d Alembert.[1] D Alembert proved that – for incompressible and inviscid potential flow – the drag force… … 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
Compressible flow — is the area of fluid mechanics that deals with fluids in which the fluid density varies significantly in response to a change in pressure. Compressibility effects are typically considered significant if the Mach number (the ratio of the flow… … Wikipedia
