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- W1639446743 abstract "Abstract : An experimental investigation of two-dimensional confined jet thrust vector control nozzles was performed. Thrust vector control was accomplished by using secondary flow injection in the diverging section of the nozzle. Schlieren photographs and video tapes were used to study flow separation and internal shock structures. Nozzle performance parameters were determined for nozzle flow with and without secondary flows. These parameters included nozzles forces, vector angles, thrust efficiencies, and flow switching response times. Vector angles as great as 18 degrees with thrust efficiencies of 0.79 were measured. Several confined jet nozzles with variations in secondary flow port design were tested and results were compared to each other. Converging-diverging nozzles of similar design to the confined jet nozzles were also tested and results were compared to the confined jet nozzle results. Existing prediction models for nozzle side to axial force ratio were evaluated. A model for nozzle total forces based on shock losses that predicted values very close to actual results was developed. Keywords: Two dimensional flow; Flow visualization; Control jets; Rocket nozzles; Nozzle gas flow; Reconvergent nozzles. Theses." @default.
- W1639446743 created "2016-06-24" @default.
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- W1639446743 date "1989-03-01" @default.
- W1639446743 modified "2023-09-24" @default.
- W1639446743 title "Two-Dimensional Confined Jet Thrust Vector Control: Operating Mechanisms and Performance" @default.
- W1639446743 hasPublicationYear "1989" @default.
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