- laval velocity
- 拉瓦尔速度
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
laval velocity
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LAVAL — SWEDEN (see also List of Individuals) 8.5.1845 Blåsenborg/S 3.2.1913 Stockholm/S Gustaf de Laval graduated as a mechanical engineer from the University of Uppsala in 1863 and then joined an engineering company as a draftsman, but poor health… … Hydraulicians in Europe 1800-2000
de Laval nozzle — Diagram of a de Laval nozzle, showing approximate flow velocity (v), together with the effect on temperature (t) and pressure (p) A de Laval nozzle (or convergent divergent nozzle, CD nozzle or con di nozzle) is a tube that is pinched in the… … Wikipedia
De Laval nozzle — A de Laval nozzle (or convergent divergent nozzle, CD nozzle or con di nozzle) is a tube that is pinched in the middle, making an hourglass shape. It is used as a means of accelerating the flow of a gas passing through it to a supersonic speed.… … Wikipedia
de Laval turbine — Turbine Tur bine, n. [L. turbo, inis, that which spins or whirls round, whirl.] 1. A water wheel, commonly horizontal, variously constructed, but usually having a series of curved floats or buckets, against which the water acts by its impulse or… … The Collaborative International Dictionary of English
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turbine — /terr bin, buyn/, n. any of various machines having a rotor, usually with vanes or blades, driven by the pressure, momentum, or reactive thrust of a moving fluid, as steam, water, hot gases, or air, either occurring in the form of free jets or as … Universalium
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
Rocket engine nozzle — A rocket engine nozzle is a propelling nozzle usually of the de Laval type used in a rocket engine to expand and accelerate the combustion gases, from burning propellants, so that the exhaust gases exit the nozzle at hypersonic… … Wikipedia
Turbine — A turbine is a rotary engine that extracts energy from a fluid flow. Claude Burdin (1788 1873) coined the term from the Latin turbo , or vortex, during an 1828 engineering competition. Benoit Fourneyron (1802 1867), a student of Claude Burdin,… … Wikipedia
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Choked flow — is a compressible flow effect. The parameter that becomes choked or limited is the velocity or the mass flow rate. Choked flow is a fluid dynamic condition associated with the Venturi effect. When a flowing fluid at a given pressure and… … Wikipedia
