The effect of duct geometry and primary jet characteristics on the level of thrust augmentation of conventional rocket motor jets, with conical nozzles exhausting into a stationary atmosphere, has been investigated. For a range of straight, cylindrical ducts with bell-mouth inlets, it is found that the duct thrust is primarily a function of duct length and primary thrust. Chamber pressure and nozzle conditions have little effect other than their effect on primary thrust.
Static Thrust Augmentation of Rocket Motors by Air Entrainment
1983
36 pages
Report
No indication
English
Thrust augmentation of rocket motors at high altitudes
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