Open AccessStochastic forcing of the 2D boundary layer by DBD plasma actuator
Author(s) -
I. A. Moralev,
I. M. Popov,
И. В. Селивонин,
M. V. Ustinov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2100/1/012001
Subject(s) - streak , boundary layer , plasma actuator , mechanics , boundary (topology) , parametric statistics , physics , actuator , plasma , broadband , control theory (sociology) , optics , mathematics , computer science , mathematical analysis , dielectric barrier discharge , statistics , quantum mechanics , control (management) , artificial intelligence
The paper describes the results of the parametric study of the broadband velocity pulsations, induced by DBD plasma actuator in 2D subsonic boundary layer. The presented data include the analysis of the disturbance growth at various pressure gradients. It is assumed that the broadband pulsations are composed of the elementary disturbances, induced by an individual microdischarges, wandering along the electrode edge. These disturbances have a streak-like structure in a near field, and evolve into a fan of packets of Tollmien-Schliechting waves as one moves downstream. The streamwise length, needed for transition to modal behavior, depends on the stability properties of the boundary layer.