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TsAGI Science Journal

ISSN Imprimer: 1948-2590
ISSN En ligne: 1948-2604

TsAGI Science Journal

DOI: 10.1615/TsAGISciJ.2017019835
pages 665-683

PASSIVE CONTROL OF OBLIQUE-SHOCK INTERACTION WITH THE TURBULENT BOUNDARY LAYER

Volf Ya. Borovoy
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, Moscow Region, 140180 Russian Federation
Ivan Vladimirovich Egorov
Central Aerohydrodynamic Institute (TsAGI), 1, Zhukovsky Str., Zhukovsky, Moscow Region, 140180, Russian Federation
Evgenii Gennadievich Zaitsev
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky 140180, Russia
Arkadii Sergeyevich Skuratov
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia
Evgeniy Pavlovich Stolyarov
Central Aerohydrodynamic Institute (TsAGI), 1 Zhukovsky Str., Zhukovsky, 140180, Moscow Region, Russia
Irina Vladimirovna Struminskaya
Central Aerohydrodynamic Institute (TsAGI) 1, Zhukovsky str., Zhukovsky, 140180, Moscow region, Russia

RÉSUMÉ

Control of the interaction between an oblique shock and the turbulent boundary layer on a plate surface is investigated at Mach number M = 4 and Reynolds number Re∞L = 1.6 × 107. The shock is generated by a sharp 15° wedge. Gas compressed by the incident and reflected shocks is sucked out at the rear wall and then injected in front of the interaction region through flat or axisymmetric nozzles. The following measurements are taken: pressure distribution over the test plate; stagnation pressure profiles at the end of the channel formed between the shock generator and the test plate; and pressure fluctuations in front of the interaction region, inside this region, and behind it. Although the separation is not eliminated, the passive control has a great influence on the flow in the interaction region. This results in an increase in the stagnation pressure in the near-wall flow zone, a more uniform pressure distribution over the plate surface, and a decrease in the maximum pressure and pressure fluctuation levels at the end of the interaction region.


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