Abstract
The possibility to control turbulent incompressible boundary layer using air blowing through a finely perforated wall presenting part of the streamlined flat-plate surface was examined. The control was exercised via an action on the state and characteristics of the near-wall flow exerted by controlled (through variation of external-pressure-flow velocity) blowing of air through an air intake installed on the idle side of the plate. A stable reduction of the local values of skin friction coefficient along the model, reaching 50 % at the end of the perforated area, has been demonstrated. The obtained experimental and calculated data are indicative of a possibility to model the process of turbulentboundary-layer control by air blowing due to external-flow resources.
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Kornilov, V.I., Boiko, A.V. & Kavun, I.N. Control of turbulent boundary layer through air blowing due to external-flow resources. Thermophys. Aeromech. 22, 413–426 (2015). https://doi.org/10.1134/S0869864315040022
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DOI: https://doi.org/10.1134/S0869864315040022