Adaptive flow control laws: A simulation based comparison with low order models

4 Adaptive control law structures 6 4.1 Static gain controller with delayed measurement . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.2 Adaptation of the gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.2.1 Gradient descent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.2.2 Local grid optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.3 Delay controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.4 Dynamic controller in rational form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.5 Dynamic controller in lattice form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

[1]  M. Provansal,et al.  Bénard-von Kármán instability: transient and forced regimes , 1987, Journal of Fluid Mechanics.

[2]  R. King,et al.  Extensions of adaptive slope-seeking for active flow control , 2008 .

[3]  Louis N. Cattafesta,et al.  Adaptive Control of Separated Flow , 2006 .

[4]  W. Neise,et al.  Adaptive flow control using slope seeking , 2006, 2006 14th Mediterranean Conference on Control and Automation.

[5]  Uwe Ehrenstein,et al.  Instability of streaks in wall turbulence with adverse pressure gradient , 2011, Journal of Fluid Mechanics.

[6]  Hebertt Sira-Ramírez,et al.  Closed-loop parametric identification for continuous-time linear systems via new algebraic techniques , 2007 .

[7]  Gerhard Kreisselmeier,et al.  An approach to stable indirect adaptive control , 1985, Autom..

[8]  M. Garwon,et al.  Adaptive control of separated flows , 2003, 2003 European Control Conference (ECC).

[9]  I. Akhtar,et al.  Modeling the Aerodynamic Lift Produced by Oscillating Airfoils at Low Reynolds Number , 2014, 1502.06431.

[10]  Marianna Braza,et al.  Dynamics of a hybrid morphing wing with active open loop vibrating trailing edge by Time-Resolved PIV and force measures , 2017 .

[11]  Anthony D. Fagan,et al.  Gradient-Adaptive Algorithms for Minimum Phase-All Pass Decomposition of an FIR System , 2009 .

[12]  Phillip A. Regalia,et al.  An improved lattice-based adaptive IIR notch filter , 1991, IEEE Trans. Signal Process..

[13]  Bernard Widrow,et al.  Adaptive Signal Processing , 1985 .

[14]  Michael S. Triantafyllou,et al.  A Combined Smart-Materials Approach for Next-Generation Airfoils , 2016 .

[15]  John C. Lin,et al.  Review of research on low-profile vortex generators to control boundary-layer separation , 2002 .