Investigation of Distributed Roughness Element System Based on Dielectric Barrier Discharge for the Suppression of Stationary Cross-Flow Vortices on the Swept Wing

Baranov, S. A.; Moralev, I. A.; Sboev, D. S.; Tolkachev, Stepan; Ustinov, M. V.

doi:10.1007/978-3-030-67902-6_12

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“…As to the 3D boundary layers, recent applications of plasma actuators were focused on the cross-flow instability, governing the transition on a swept wing at cruise condition [4][5][6][7][8][9][10][11]. Among the other strategies, direct damping of the cross-flow vortices in the boundary layer was theoretically studied in [6].…”

Section: Introductionmentioning

confidence: 99%

Damping of the longitudinal streak in the boundary layer by ‘plasma panel’ actuator

Moralev¹,

Selivonin²,

Tatarenkova³

et al. 2019

J. Phys. D: Appl. Phys.

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The group of microdischarges in surface DBD can be used as a virtual roughness element. Localization of the discharge along the electrode span can be performed on the ‘plasma panel’ principle by sectioning the buried electrode and individually controlling sections potential. The paper describes the study of the details of such actuator operation. Data presented include the flowfield induced by discharge and the analysis of the controllability of the created disturbances in a subsonic boundary layer. In the final part of the paper, the control of the low-velocity streak, an object widely present in transitionary and turbulent flows, by an adaptive plasma actuator, is demonstrated.

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