convergent-divergent nozzle


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convergent-divergent nozzle

[kən¦vər·jənt də¦vər·jənt ′näz·əl]
(design engineering)
A nozzle in which supersonic velocities are attained; has a divergent portion downstream of the contracting section. Also known as supersonic nozzle.

convergent-divergent nozzle

convergent-divergent nozzle
Convergent-divergent nozzle.
An arrangement in which the forward portion of the nozzle is convergent, which increases the pressure of the exhaust gases, while the aft section is divergent to increase gas velocity to the supersonic speed and avoid losses from underexpansion. This arrangement is not very efficient below the design speed.
References in periodicals archive ?
The tunnel was configured with a convergent-divergent nozzle that resulted in a free-stream Mach number of 2.
Shock associated noise of supersonic jets from convergent-divergent nozzles, Journal of Sound and Vibration 81(3): 337-358.