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Vorozhbit, E. E.; Petrov, A. V.; Soudakov, V. G.
Fluid dynamics, 12/2022, Letnik: 57, Številka: 6Journal Article
The results of experimental investigations of jet blowing for reducing or suppressing local flow separations from the upper surface of a model of the high-lift wing of civil aircraft at high angles of attack in the T-104 TsAGI subsonic wind tunnel are given with the aim to improve the aerodynamic characteristics in the landing regime. The low-intensity jets are blown from slot nozzles on the leading wing edges in the regions of its junction with the fuselage or the engine nacelle pylon. The results obtained for the baseline configuration of the aircraft model without jet blowing and for configurations with jet blowing at various angles to the upper wing surface are compared. It is shown that in all investigated variants increase in the jet blowing intensity leads to almost monotonic increase in the lifting properties of the model over the entire range of angles of attack. For the identical momentum coefficients, jet blowing in the zone of the wing-fuselage junction is most efficient.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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