The Gasdynamics of Self-Regulation of a Supersonic Plug Nozzle
AIR FORCE SYSTEMS COMMAND WRIGHT-PATTERSON AFB OH FOREIGN TECHNOLOGY DIVISION
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Experimental studies are presented of supersonic plug nozzles. The purpose of the study was to determine the nozzle performance at characteristic pressure ratios and to formulate a gasdynamic theory for variable nozzles. Cold air at 6 kgcm superscript 2 and 345 degrees K was used as the working medium. The static pressure was measured along the nozzle, the plug, and the nozzle inlet. In addition, the shadow method was used to visually examine the exhaust jet. Changes in the pressure ratio in the nozzle were determined from pressure variations at the inlet cross-section of the nozzle. The study included plug nozzles with single and multiple combustion chambers. In addition to rocket application, plug nozzles have potential application in turbojet and ramjet engines.
- Fluid Mechanics
- Rocket Engines