Book Description
This volume contains a well balanced combination of theoretical and experimental state-of-the-art results of Active Flow Control. It combines new developments in actuator technology, sensing, robust and optimal open- and closed-loop control and model reduction for control. Numerical and experimental applications are considered from aeronautics, turbo-machinery and combustors. The contributions to this book were presented at the conference Active Flow Control 2006, held September 27-29, 2006, at the Technische Universität Berlin, Germany. The conference was organized by the Collaborative Research Center SFB 557 Control of complex turbulent shear flows, which is funded by the DFG (German Research Foundation).

Table of Contents:

The taming of the shrew : why is it so difficult to control turbulence?

Electromagnetic control of separated flows using periodic excitation with different wave forms

Pulsed plasma actuators for active flow control at MAV Reynolds numbers

Experimental and numerical investigations of boundary-layer influence using plasma-actuators

Designing actuators for active separation control experiments on high-lift configurations

Closed-loop active flow control systems : actuators

State estimation of transient flow fields using double proper orthogonal decomposition (DPOD)

A unified feature extraction architecture

Control of wing vortices

Towards active control of leading edge stall by means of pneumatic actuators

Computational investigation of separation control for high-lift airfoil flows

Steady and oscillatory flow control tests for tilt rotor aircraft

Reduced-order model-based feedback control of subsonic cavity flows - an experimental approach

Supersonic cavity response to open-loop forcing

Active drag control for a generic car model

Continuous mode interpolation for control-oriented models of fluid flow

Active management of entrainment and streamwise vortices in an incompressible jet

Active control to improve the aerodynamic performance and reduce the tip clearance noise of axial turbomachines with steady air injection into the tip clearance gap

Drag minimization of the cylinder wake by trust-region proper orthogonal decomposition

Flow control on the basis of a FEATFLOW-MATLAB coupling

On the choice of the cost functional for optimal vortex reduction for instationary flows

Flow control with regularized state constraints

Feedback control applied to the bluff body wake

Active blade tone control in axial turbomachines by flow induced secondary sources in the blade tip regime

Phase-shift control of combustion instability using (combined) secondary fuel injection and acoustic forcing

Vortex models for feedback stabilization of wake flows