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TsAGI Science Journal

ISSN Imprimir: 1948-2590
ISSN On-line: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2019030595
pages 115-132

EXPERIMENTAL INVESTIGATIONS OF EXTERNALLY BLOWN FLAP EFFICIENCY ON THE MODEL OF SHORT TAKEOFF AND LANDING TWIN-ENGINE TRANSPORT AIRCRAFT

Albert Vasilievich Petrov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region
Evgeny Alexandrovich Pigusov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation

RESUMO

The results of experimental investigations of a model of short takeoff and landing (MSTOL) of a twin-engine medium transport aircraft with externally blown flaps by jets of ejector simulators of ultra-high bypass engines (M ≈ 16–18) in the TsAGI T-102 low-speed wind tunnel are presented. The principal features of the jet effect on the aerodynamic characteristics of the model in takeoff, landing, and cruising configurations are considered. The possibilities of active control of the aircraft aerodynamic characteristics using an adaptive element of high-lift devices in the form of a deflected wing trailing edge are shown. A comparative estimation of the aerodynamic characteristics of the MSTOL with two and four engines is carried out.

Referências

  1. Egorov, Yu.A. and Novozhilov, G.V., Airplanes of Aviation Complex Named after S.V. Il’yushin, vol. 2, Moscow: Mashinostroenie-Polyot, 2018 (in Russian).

  2. Petrov, A.V., Aerodynamics of transport airplanes, in TSAGI—the Basic Stages of Scientific Research 1993–2003, pp. 104–116, Moscow: Fizmatlit, 2003 (in Russian).

  3. Petrov, A.V., Aerodynamics of Short Takeoff and Landing Transport Airplanes with Powered Lift Systems, Moscow: Innovatcionnoe Mashinostroenie, 2018, (in Russian).

  4. Pavlenko, O.V., Petrov, A.V., and Pigusov, E.A., Formation of concept medium short takeoff and landing twin-engine transport airplane, in Proc. of XXVIII Science-Technical Conference in Aerodynamics, p. 186, Moscow: TsAGI, 2017.

  5. Pavlenko, O.V., Petrov, A.V., and Pigusov, E.A., Computational-exp. investigations on formation a concept of short takeoff and landing twin-engine medium transport aircraft with powered lift system, in Proc. of XVII Int. School-Seminar on Models and Methods of Aerodynamics, Eupatoria Crimea, pp. 123-125.

  6. Pigusov, E.A., Exp. investigations of the influence of the ground proximity on aerodynamic characteristics of short takeoff and landing transport airplane with powered lift system on the wing, in Proc. of the XXIX Science Technical Conf. in Aerodynamics, p. 167, Moscow.

  7. Druzhinin, O.V., Pavlenko, O.V., Petrov, A.V., and Pigusov, E.A., Num. investigation of application of a combined powered lift system in the case of the engine failure on a twin-engine transport airplane of short take-off and landing, in Proc. of XXV All-Russian Seminar with Int. Participation on Jet.

  8. Pavlenko, O., Petrov, A., and Pigusov, E., Concept of medium twin-engine STOL transport airplane, in Proc. of 31th Congress of the ICAS, ICAS 2018-0104, Belo Horizonte, Brazil, September 9–14, 2018.

  9. Petrov, A.V. and Tretyakov, V.F., Influence of high-bypass-ratio turbofan jets on aerodynamic characteristics of high-lift wing, TsAGI Sci. J., 46(7):619–629, 2015.

  10. FAR 23.149, Federal Aviation Regulations (FAR), Part 23 Airworthiness Standards: Normal, Utility, Acrobatic and Commuter Airplanes.

  11. FAR 25.149, Federal Aviation Regulations (FAR), Part 25 Airworthiness Standards: Transport Category Airplanes.


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