IUTAM Symposium on Flow Control and MEMS

by Morrison, J. F.; Birch, D. M.; Lavoie, P.

• ISBN13: 9781402068577
• ISBN10: 1402068573
• Edition: 1st
• Format: Hardcover
• Copyright: 2008-02-06
• Publisher: Springer Verlag

Summary

The Symposium brought together many of the world's experts in fluid mechanics, microfabrication and control theory to discover the synergy that can lead to real advances and perhaps find ways in which collaborative projects may proceed. The high profile meeting was attended by keynote speakers who are leaders in their fields. A key driver was the improvement in flow efficiency to reduce drag, and thereby emissions arising from transport. About 65 papers were presented.

Table of Contents

Introduction	p. xi
Acknowledgements	p. xv
Mems Devices
High Power Density MEMS: Materials and Structures Requirements	p. 3
MEMS for Flow Control: Technological Facilities and MMMS Alternatives	p. 15
MEMS-Based Electrodynamic Synthetic Jet Actuators for Flow Control Applications	p. 25
Suction and Oscillatory Blowing Actuator	p. 33
Numerical Investigation of a Micro-Valve Pulsed-Jet Actuator	p. 45
Characterization of MEMS Pulsed Micro-Jets with Large Nozzles	p. 53
Magnetically Actuated Microvalves for Active Flow Control	p. 59
Micromachined Shear Stress Sensors for Flow Control Applications	p. 67
Synthetic Jets
Synthetic Jets and Their Applications for Fluid/Thermal Systems	p. 77
Is Helmholtz Resonance a Problem for Micro-Jet Actuators?	p. 95
Passive Scalar Mixing Downstream of a Synthetic Jet in Crossflow Jet	p. 103
Towards a Practical Synthetic Jet Actuator for Industrial Scale Flow Control Applications	p. 111
Measurements of Synthetic Jets in a Boundary Layer	p. 119
Large-Eddy Simulation of Synthetic Jets in Stagnant Surroundings and Turbulent Cross-Flow	p. 127
Characteristics of Small-Scale Synthetic Jets - Numerical Investigation	p. 135
Large Eddy Simulations of Transitional and Turbulent Flows in Synthetic Jet Actuators	p. 141
Separation Control
Model Reduction and Control of a Cavity-Driven Separated Boundary Layer	p. 147
Collaborative Studies on Flow Separation Control	p. 157
High Resolution PIV Study of Zero-Net-Mass-Flow Lift Enhancement of NACA 0015 Airfoil at High Angles of Attack	p. 167
Separation Control along a NACA0015 Airfoil Using a Dielectric Barrier Discharge Actuator	p. 175
Dynamic Surface Pressure Based Estimation for Flow Control	p. 183
The Control of Laminar Separation Bubbles Using High- and Low-Amplitude Forcing	p. 191
Control of Subsonic Flows with High Voltage Discharges	p. 199
Control of Flow Separation on a Wing Profile Using PIV Measurements and POD Analysis	p. 203
Control of the Shear-Layer in the Wake of an Axisymmetric Airfoil Using a DBD Plasma Actuator	p. 209
Drag Reduction and Mixing
Models for Adaptive Feedforward Control of Turbulence	p. 219
Minimum Sustainable Drag for Constant Volume-Flux Pipe Flows	p. 229
Enhancement of Suboptimal Controllability in Wall Turbulence	p. 237
An Improvement of Opposition Control at High Reynolds Numbers	p. 243
Direct Numerical Simulation of Alternated Spanwise Lorentz Forcing	p. 251
Boundary Layer Control for Drag Reduction by Lorentz Forcing	p. 259
Multi-Scale Flow Control for Efficient Mixing: Laboratory Generation of Unsteady Multi-Scale Flows Controlled by Multi-Scale Electromagnetic Forces	p. 267
Multi-Scale Flow Control for Efficient Mixing: Simulation of Electromagnetically Forced Turbulent-Like Laminar Flows	p. 273
Closed-Loop Control
Active Control of Laminar Boundary Layers Disturbances	p. 281
Low-Dimensional Tools for Closed-Loop Flow Control in High Reynolds Number Turbulent Flows	p. 293
Evolutionary Optimization of Feedback Controllers for Thermoacoustic Instabilities	p. 311
Active Cancellation of Tollmien-Schlichting Instabilities in Compressible Flows Using Closed-Loop Control	p. 319
Optimal Boundary Flow Control: Equivalence of Adjoint and Co-State Formulations and Solutions	p. 333
Optimal Growth of Linear Perturbations in Low Pressure Turbine Flows	p. 339
Simulations of Feedback Control of Early Transition in Poiseuille Flow	p. 345
A Switched Reduced-Order Dynamical System for Fluid Flows under Time-Varying Flow Conditions	p. 349
Strategies for Optimal Control of Global Modes	p. 353
Applications
Modeling and Development of Synthetic Jet Actuators in Flow Separation Control Application	p. 361
Feedback Control Using Extremum Seeking Method for Drag Reduction of a 3D Bluff Body	p. 365
Flow Control in Turbomachinery Using Microjets	p. 373
ONERA/IEMN Contribution within the ADVACT Program: Actuators Evaluation	p. 381
Control of Flow-Induced Vibration of Two Side-by-Side Cylinders Using Micro Actuators	p. 387
Improvement of the Jet-Vectoring through the Suppression of a Global Instability	p. 393
Passive Control
Experimental Optimization of Bionic Dimpled Surfaces on Axisymmetric Bluff Bodies for Drag Reduction	p. 399
Flow Regularisation and Drag Reduction around Blunt Bodies Using Porous Devices	p. 405
The Effects of Aspect Ratio and End Condition on the Control of Free Shear Layers Development and Force Coefficients for Flow Past Four Cylinders in the In-Line Square Configuration	p. 409
Numerical Simulation on the Control of Drag Force and Vortex Formation by Different Way (Varicose) Cylinders	p. 415
Passive Multiscale Flow Control by Fractal Grids	p. 421
Hydraulic Model of the Skin Friction Reduction with Surface Grooves	p. 427
Vortex Shedding behind a Tapered Cylinder and Its Control	p. 433
Control of a Separated Flow over a Smoothly Contoured Ramp Using Vortex Generators	p. 437
Biomimetic Flight and Flow Control: Learning from the Birds	p. 443
Author Index	p. 449
Subject Index	p. 451
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