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JOURNALS // Prikladnaya Mekhanika i Tekhnicheskaya Fizika // Archive

Prikl. Mekh. Tekh. Fiz., 2005 Volume 46, Issue 4, Pages 47–54 (Mi pmtf2281)

Controlling the development of stationary longitudinal structures in the boundary layer on a flat plate using riblets

D. S. Lokhov, A. V. Boiko, D. S. Sboev

Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: This paper reports results of experiments on controlling longitudinal structures in the boundary layer on a at plate. The longitudinal structures were generated by a controlled vortical disturbance of the external flow by means of a distributed susceptibility mechanism. It is shown that riblets reduce the intensity of both stationary and traveling disturbances. The linear and weakly linear stages in the development of disturbances in the boundary layer are the most favorable for the use of riblets.

Keywords: boundary layer, distributed susceptibility, longitudinal structures, control, riblets.

UDC: 532.526

Received: 07.06.2004


 English version:
Journal of Applied Mechanics and Technical Physics, 2005, 46:4, 496–502

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