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TsAGI Science Journal

ISSN Печать: 1948-2590
ISSN Онлайн: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.v40.i6.30
pages 657-667

INVESTIGATION OF THE BPR ENGINE NOZZLE WITH CONTROLLABLE CHEVRONS

Gennadii Nikolaevich Lavrukhin
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
A. A. Aleksentsev
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
D. B. Bekurin
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
E. V. Vlasov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
A. A. Inozemtsev
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
A. P. Paduchev
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
O. A. Umpeleva
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia

Краткое описание

Results of 3D aerodynamic calculations concerning the influence of the turbojet nozzle chevron deflection angle into the flow on engine thrust characteristics are presented. The optimum deflection angle, at which the chevrons exert the minimum influence on the thrust losses, is chosen. The scheme of the deflection angle control by the ring, made of the shape-memory material nitinol is proposed. The investigation results of the aerogasdynamic and acoustic characteristics of the nozzle with the chevrons are given.


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