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aerodynamic sound

См. также в других словарях:

  • sound barrier — 1. Also called sonic barrier, transonic barrier. (not in technical use) a hypothetical barrier to flight beyond the speed of sound, so postulated because aircraft undergo an abruptly increasing drag force induced by compression of the surrounding …   Universalium

  • Sound barrier — In aerodynamics, the sound barrier usually refers to the point at which an aircraft moves from transonic to supersonic speed. The term came into use during World War II when a number of aircraft started to encounter the effects of compressibility …   Wikipedia

  • Aerodynamic Park — The Aerodynamic Park (Aerodynamischer Park) of the Humboldt University in Berlin Adlershof was once part of the German Johannisthal Air Field. Laboratories, motor test beds, wind tunnels and hangars, erected in the 20s and 30s, are historical… …   Wikipedia

  • sound barrier — noun the increase in aerodynamic drag as an airplane approaches the speed of sound • Syn: ↑sonic barrier • Hypernyms: ↑drag, ↑retarding force * * * noun the sound barrier : the large increase in air resistance that occurs as an aircraft nears the …   Useful english dictionary

  • sound barrier — noun Date: 1939 a sudden large increase in aerodynamic drag that occurs as the speed of an aircraft approaches the speed of sound …   New Collegiate Dictionary

  • Computational Aeroacoustics — While the discipline of Aeroacoustics is definitely dated back to the first publication of Sir James Lighthill[1][2] in the early 1950s, the origin of Computational Aeroacoustics can only very likely be dated back to the middle of the 1980s.… …   Wikipedia

  • Acoustic analogy — Acoustic analogies are applied mostly in numerical aeroacoustics to reduce aeroacoustic sound sources to simple emitter types. They are therefore often also referred to as aeroacoustic analogies.In general, aeroacoustic analogies are derived from …   Wikipedia

  • Aerodynamics — is a branch of dynamics concerned with studying the motion of air, particularly when it interacts with a moving object. Aerodynamics is closely related to fluid dynamics and gas dynamics, with much theory shared between them. Aerodynamics is… …   Wikipedia

  • Air Movement and Control Association — The Air Movement and Control Association International, Inc. (AMCA; pronounced Am Cah ) is a nonprofit organization that creates standards for, tests, and rates Heating, Ventilating, and Air Conditioning (HVAC) equipment. It is best known for its …   Wikipedia

  • Aircraft noise — is defined as sound produced by any aircraft or its components, during various phases of a flight, on the ground while parked such as auxiliary power units, while taxiing, on run up from propeller and jet exhaust, during take off, underneath and… …   Wikipedia

  • Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …   Wikipedia

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