expansion shock wave
11compression wave — A shock wave that forms on the surface of an airfoil moving through the air at supersonic speeds. The reverse phenomenon is an expansion wave. Also called bow wave. See also bow shock wave and expansion wave …
12Bow shock (aerodynamics) — For other uses, see Bow shock. A blunt body fired from a gun against a supersonic flow in a wind tunnel, producing a bow shock. A bow shock, also called a detached shock, is a curved, stationary shock wave that is found in supersonic flow past a… …
13Acoustic wave — An acoustic wave is a weak compression wave (meaning a small pressure change) that moves at the speed of sound. As opposed to a shock wave, the pressure change is continuous, and the wave is isentropic, meaning energy is conserved as it… …
14Lee wave — The wind flows towards a mountain and produces a first oscillation (A) followed by more waves. the following waves will have lower amplitude because of the natural damping. Lenticular clouds stuck on top of the flow (A) and (B) will appear… …
15compression wave — noun see compressional wave * * * a shock wave that compresses the medium through which it is transmitted. Also, compressional wave. Cf. expansion wave. [1885 90] * * * compression wave, Physics. a wave in which the particles of a substance move… …
16compression wave — a shock wave that compresses the medium through which it is transmitted. Also, compressional wave. Cf. expansion wave. [1885 90] * * * …
17Thermal shock — is the name given to cracking as a result of rapid temperature change. Glass and ceramic objects are particularly vulnerable to this form of failure, due to their low toughness, low thermal conductivity, and high thermal expansion coefficients.… …
18The Third Wave (book) — infobox Book | name = The Third Wave title orig = translator = image caption = author = Alvin Toffler illustrator = cover artist = country = United States language = English series = genre = Social Science, History, Futurology publisher = Bantam… …
19Components of jet engines — Diagram of a typical gas turbine jet engine. Air is compressed by the fan blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which… …
20cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
