Reduction of friction drag by means of boundary layer laminarization using a dielectric barrier discharge |
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| Authors: | M N Kogan V M Litvinov A A Uspenskii M V Ustinov |
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| Institution: | (1) Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA;(2) Department of Naval Architecture and Marine Engineering, University of Michigan, Ann Arbor, MI 48109, USA |
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| Abstract: | The results of an experimental investigation of the possibility of skin friction drag reduction by delaying laminar-turbulent transition under the action of near-surface dielectric barrier discharge are presented. The measurements were carried out on the lower plane wall of the test section of a wind tunnel at the flow velocity of 10 m/s and the turbulence level of about 0.06%. It is shown that the use of a discharge excited at the beginning of the laminar-turbulent transition region makes it possible to obtain an appreciable (up to 20%) reduction in the friction drag. |
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