Instability and Control of Massively Separated Flows : Proceedings of the International Conference on Instability and Control of Massively Separated Flows, Held in Prato, Italy, From 4-6 September 2013

This book contains the outcome of the international meeting on instability, control and noise generated by massive flow separation that was organized at the Monash Center, in Prato, Italy, September 4-6, 2013. The meeting served as the final review of the EU-FP7 Instability and Control of Massively Separated Flows Marie Curie travel grant and was supported by the European Office of Aerospace Research and Development. Fifty leading specialists from twelve countries reviewed the progress made since the 50s of the last century and discussed modern analysis techniques, advanced experimental flow diagnostics and recent developments in active flow control techniques from the incompressible to the hypersonic regime. Applications involving massive flow separation and associated instability and noise generation mechanisms of interest to the aeronautical, naval and automotive industries have been addressed from a theoretical, numerical or experimental point of view, making this book a unique source containing the state-of-the-art in separated flow instability and its control. Front Matter....Pages i-xxxix Prologue to the International Conference on Massively Separated Flows and Their Control....Pages 1-3 Front Matter....Pages 5-5 Investigations of Stability and Transition of a Jet in Crossflow Using DNS....Pages 7-18 Some Challenging Studies on Shock Wave Boundary Layer Interactions Using Advanced Flow Diagnostics....Pages 19-30 Front Matter....Pages 31-31 Investigation of Coherent Structures and Dynamics Using POD and DMD of a Separated Airfoil Subjected to ZNMF Jet Forcing....Pages 33-38 Recovery of the Koopman Modes of a Leading-Edge Separated Aerofoil Flow via a Proper Orthogonal Decomposition Rank Reduction....Pages 39-44 Effect of the Trailing Edge Geometry on the Unsteadiness of the Flow Around a Stalled NACA 0015 Airfoil....Pages 45-50 The Role of Laminar Separation Bubbles on the FX 63-137 Airfoil....Pages 51-56 Front Matter....Pages 57-57 Evaluation Criteria and Performance Comparison of Actuators....Pages 59-64 Flow Control on Gö 387 Airfoil by Using Nanosecond Pulse Plasma Actuator....Pages 65-70 Progress Toward Closed Loop Control of a Flow Around an Airfoil with Coanda Blowing....Pages 71-76 Distributed Closed-Loop Lift Control for Performance Recovery of a Thick Turbulent Airfoil....Pages 77-82 Front Matter....Pages 83-83 Proper Orthogonal Decomposition and Dynamic Mode Decomposition of Under-Expanded Free-Jets with Varying Nozzle Pressure Ratios....Pages 85-90 Instability Study of the Wake Behind a Discrete Roughness Element in a Hypersonic Boundary-Layer....Pages 91-96 Global Instability in Shock Wave Laminar Boundary-Layer Interaction....Pages 97-102 Front Matter....Pages 103-103 The Role of Spanwise Forcing on Vortex Shedding Suppression in a Flow Past a Cylinder....Pages 105-110 Three-Dimensional Transition of the Flow Past a Cylinder Fitted with Helical Strakes....Pages 111-116 Comparison Between the Koopman Modes for the Flow Around Circular Cylinder and Circular Cylinder Fitted with Helical Strakes....Pages 117-122 Influence of the Shape on the Roughness-Induced Transition....Pages 123-128 Front Matter....Pages 129-129 Tomo-PIV Measurements of Flow Around A Slender Body at High Angles of Attack....Pages 131-136 Open-Loop Control of a Turbulent Axisymmetric Wake....Pages 137-142 Front Matter....Pages 129-129 Stability and Coherent Structures in the Wake of Axisymmetric Bluff Bodies....Pages 143-148 Front Matter....Pages 149-149 Stability and Control on a Low Aspect Ratio Cantilevered Circular Cylinder....Pages 151-156 Suction and Oscillatory Blowing Applied to the Rounded Front Edges of a Square Prism....Pages 157-162 Suppression of Vortex-Induced Vibration of a Cylinder Fitted with Free-to-Rotate Parallel and Oblique Plates....Pages 163-168 Numerical Study of the Flow Around a Circular Cylinder with Dual Parallel Splitter Plates....Pages 169-174 Front Matter....Pages 175-175 Laminar Separation Bubbles in Two-Dimensional Straight-Diverging-Straight Channel Flows....Pages 177-182 Characterisation of the Transient Dynamics of a Controlled Separated Flow Using Phase Averaged PIV....Pages 183-188 Active Control by Surface Dielectric Barrier Discharge Actuator of a Reattached Shear Layer....Pages 189-194 Front Matter....Pages 195-195 Numerical Simulation of a Synthetic Jet with OpenFOAM....Pages 197-202 Three-Dimensional Analysis of Incompressible Flow Over an Open Cavity Using Direct Numerical Simulation: From Linear to Saturated Regime....Pages 203-208 Three-Dimensional Waves Inside an Open Cavity and Interactions with the Impinging Shear Layer....Pages 209-214 Front Matter....Pages 215-215 Minimal Gain Time Marching Schemes for the Construction of Accurate Steady-States....Pages 217-222 Molecular Dynamics Simulations of Couette Flow....Pages 223-228 Vortex Filament and Global Instability Analysis of the Crow Mode....Pages 229-234 Front Matter....Pages 235-235 Proper Orthogonal Decomposition Analysis of Noise Generation Mechanisms in the Slat Cove....Pages 237-242 Noise Predictions of the Advanced Noise Control Fan Using a Lattice Boltzmann Method and Ffowcs Williams–Hawkings Analogy....Pages 243-248 Acoustic Resonances in Open and Closed 3D Cavities....Pages 249-254