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TsAGI Science Journal

ISSN Druckformat: 1948-2590
ISSN Online: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2017024844
pages 363-375

EXPERIMENTAL INVESTIGATIONS OF WALL INTERFERENCE EFFECT ON MODEL TEST RESULTS AT TSAGI T-106 WIND TUNNEL

Petr Vladimirovich Savin
Central Aerohydrodynamic Institute (TsAGI), Zhukovsky str. 1, Zhukovsky, 140180, Russia

ABSTRAKT

This paper presents the results of an experimental investigation of the wall effect on model test results at the TsAGI T-106 transonic wind tunnel with a closed, circular-sectioned test section with perforated walls. The investigations were performed using a geometrically scaled model test approach. The results showed the existence of induced flow angularity, which changes with a change in the flow Mach number. It is shown that the direction of the wall-induced flow angularity corresponds to the open jet type of the flow borders, along with an insignificant change in the flow velocity axial component, depending on the model scale and angular position.


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