Characterization of noise amplifiers with global singular modes: the case of the leading-edge flat-plate boundary layer

• Published in: Theoretical and computational fluid dynamics Vol. 27; no. 5; pp. 617 - 635
• Main Authors: Sipp, Denis, Marquet, Olivier
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.09.2013; Springer; Springer Nature B.V
• Subjects: Amplification; Amplifiers; Amplifiers (Electronics); Boundaries; Boundary layer; Boundary layers; Classical and Continuum Physics; Computational fluid dynamics; Computational Science and Engineering; Engineering; Engineering Fluid Dynamics; Fluid dynamics; Instability; Kinetic energy; Kinetics; Navier-Stokes equations; Noise; Optimization; Original Article; Properties; Reynolds number; France; Noise amplifier; Stability; Boundary layer

This article deals with the linear dynamics of a transitional boundary layer subject to two-dimensional Tollmien–Schlichting instabilities. We consider a flat plate including the leading edge, characterized by a Reynolds number based on the length of the plate equal to Re  = 6 × 10 5 , inducing a di...