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de Laval nozzle


de Laval nozzle
A device, designed by Gustav de Laval, for efficiently converting the energy of a hot gas to kinetic energy (energy of motion). Originally used in some steam turbines, it is now used as the nozzle design in practically all rockets. By constricting the outflow of the gas until it reaches the velocity of sound and then letting it expand again, an extremely fast jet is produced.


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   • ROCKETRY TERMINOLOGY


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