Back فوهة دي لافال Arabic نۆزڵی دێ لاڤال CKB Lavalova dýza Czech Lavaldüse German Tobera#Tobera De Laval Spanish نازل همگرا-واگرا Persian Tuyère de Laval French זרימת דה לאוואל HE De Lavalova mlaznica Croatian Laval-fúvóka Hungarian
A de Laval nozzle (or convergent-divergent nozzle, CD nozzle or con-di nozzle) is a tube which is pinched in the middle, making a carefully balanced, asymmetric hourglass shape. It is used to accelerate a compressible fluid to supersonic speeds in the axial (thrust) direction, by converting the thermal energy of the flow into kinetic energy. De Laval nozzles are widely used in some types of steam turbines and rocket engine nozzles. It also sees use in supersonic jet engines.
Similar flow properties have been applied to jet streams within astrophysics.[1]
- ^ C.J. Clarke and B. Carswell (2007). Principles of Astrophysical Fluid Dynamics (1st ed.). Cambridge University Press. pp. 226. ISBN 978-0-521-85331-6.