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ACCOUNTING FOR THE ELASTIC TWIST WHEN PROCESSING THE TEST RESULTS FOR THE DRAINED WING MODEL OF HIGH ASPECT RATIO IN A WIND TUNNEL

Volumen 49, Ausgabe 5, 2018, pp. 569-580
DOI: 10.1615/TsAGISciJ.2018028758
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ABSTRAKT

Problems that take into account the deformations of a wing model during wind tunnel (WT) testing are considered. As examples, investigation results of a drained model of a long-range aircraft wing at Mach numbers 0.4 and 0.78 under different angles of attack are presented. The estimations of elastic twist angles in streamwise sections of the wing model are obtained. The differences in the results obtained at various values of the reference pressure in a WT with a closed test section are shown.

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