Abstract
We have experimentally investigated the characteristics of an incompressible turbulent boundary layer on a plane plate upon the passive blowing of air through a fine-perforated surface and flushing it by supplying an external pressure flow through a wind tunnel using an intake device equipped with an attachment for draining the boundary layer on the inactive side of the plate. A stable decrease in the local values of the surface coefficient of friction, which reaches 80% at the end of the perforated region, has been detected over the length of the plate. The possibility of controlling surface friction by changing the velocity of the external flow and selecting the meshes and filters at the inlet to the flow passage has been demonstrated.
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Original Russian Text © V.I. Kornilov, A.V. Boiko, 2016, published in Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 86, No. 10, pp. 38–46.
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Kornilov, V.I., Boiko, A.V. Experimental modeling of air blowing into a turbulent boundary layer using an external pressure flow. Tech. Phys. 61, 1480–1488 (2016). https://doi.org/10.1134/S1063784216100170
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DOI: https://doi.org/10.1134/S1063784216100170