Progress in Wall Turbulence: Understanding and Modeling: Proceedings of the WALLTURB International Workshop held in Lille, France, April 21-23, 2009 (ERCOFTAC Series Book 14)

This book brings together selected contributions from the WALLTURB workshop on ”Understanding and modelling of wall turbulence” held in Lille, France, on April 21st to 23rd 2009. This workshop was organized by the WALLTURB consortium, in order to present to the relevant scientific community the main results of the project and to stimulate scientific discussions around the subject of wall turbulence. The workshop reviewed the recent progress in theoretical, experimental and numerical approaches to wall turbulence. The problems of zero pressure gradient, adverse pressure gradient and separating turbulent boundary layers were addressed in detail with the three approaches, using the most advanced tools. This book is a milestone in the research field, thanks to the high level of the invited speakers and the involvement of the contributors and a testimony of the achievement of the WALLTURB project. Front Matter....Pages I-XXIII The WALLTURB Project....Pages 1-5 Front Matter....Pages 7-8 The Law of the Wall. Indications from DNS, and Opinion....Pages 9-20 A Web-Services Accessible Turbulence Database and Application to A-Priori Testing of a Matrix Exponential Subgrid Model....Pages 21-27 Modeling Multi-point Correlations in Wall-Bounded Turbulence....Pages 29-37 Theoretical Prediction of Turbulent Skin Friction on Geometrically Complex Surfaces....Pages 39-49 Scaling Turbulent Fluctuations in Wall Layers....Pages 51-62 Front Matter....Pages 63-64 The WALLTURB Joined Experiment to Assess the Large Scale Structures in a High Reynolds Number Turbulent Boundary Layer....Pages 65-73 Calibration of the WALLTURB Experiment Hot Wire Rake with Help of PIV....Pages 75-84 Spatial Correlation from the SPIV Database of the WALLTURB Experiment....Pages 85-93 Two-Point Correlations and POD Analysis of the WALLTURB Experiment Using the Hot-Wire Rake Database....Pages 95-102 Front Matter....Pages 103-104 Reynolds Number Dependence of the Amplitude Modulated Near-Wall Cycle....Pages 105-112 Tomographic Particle Image Velocimetry Measurements of a High Reynolds Number Turbulent Boundary Layer....Pages 113-120 Study of Vortical Structures in Turbulent Near-Wall Flows....Pages 121-131 Front Matter....Pages 133-134 Two-Point Near-Wall Measurements of Velocity and Wall Shear Stress Beneath a Separating Turbulent Boundary Layer....Pages 135-142 Experimental Analysis of Turbulent Boundary Layer with Adverse Pressure Gradient Corresponding to Turbomachinery Conditions....Pages 143-150 Near Wall Measurements in a Separating Turbulent Boundary Layer with and without Passive Flow Control....Pages 151-159 Front Matter....Pages 161-162 On the Relationship Between Vortex Tubes and Sheets in Wall-Bounded Flows....Pages 163-171 Spanwise Characteristics of Hairpin Packets in a Turbulent Boundary Layer Under a Strong Adverse Pressure Gradient....Pages 173-181 The Mesolayer and Reynolds Number Dependencies of Boundary Layer Turbulence....Pages 183-190 A New Wall Function for Near Wall Mixing Length Models Based on a Universal Representation of Near Wall Turbulence....Pages 191-199 Front Matter....Pages 201-202 Direct Numerical Simulations of Converging–Diverging Channel Flow....Pages 203-209 Corrections to Taylor’s Approximation from Computed Turbulent Convection Velocities....Pages 211-218 A Multi-scale & Dynamic Method for Spatially Evolving Flows....Pages 219-227 Statistics and Flow Structures in Couette–Poiseuille Flows....Pages 229-236 Front Matter....Pages 237-238 LES-Langevin Approach for Turbulent Channel Flow....Pages 239-248 A Scale-Entropy Diffusion Equation for Wall Turbulence....Pages 249-256 A Specific Behaviour of Adverse Pressure Gradient Near Wall Flows....Pages 257-265 Front Matter....Pages 267-268 A Nonlinear Eddy-Viscosity Model for Near-Wall Turbulence....Pages 269-276 ASBM-BSL: An Easy Access to the Structure Based Model Technology....Pages 277-285 Introduction of Wall Effects into Explicit Algebraic Stress Models Through Elliptic Blending....Pages 287-297 Front Matter....Pages 299-300 POD Based Reduced-Order Model for Prescribing Turbulent Near Wall Unsteady Boundary Condition....Pages 301-308 A POD-Based Model for the Turbulent Wall Layer....Pages 309-316 HR SPIV for Dynamical System Construction....Pages 317-326 The Stagnation Point Structure of Wall-Turbulence and the Law of the Wall in Turbulent Channel Flow....Pages 327-334 Front Matter....Pages 335-336 Wall Modelling for Implicit Large Eddy Simulation of Favourable and Adverse Pressure Gradient Flows....Pages 337-346 LES of Turbulent Channel Flow with Pressure Gradient Corresponding to Turbomachinery Conditions....Pages 347-354 LES Modeling of Converging Diverging Turbulent Channel Flow....Pages 355-363 Large-Scale Organized Motion in Turbulent Pipe Flow....Pages 365-373 Front Matter....Pages 375-376 Near-Wall Measurements and Wall Shear Stress....Pages 377-384 Measurements of Near Wall Velocity and Wall Stress in a Wall-Bounded Turbulent Flow Using Digital Holographic Microscopic PIV and Shear Stress Sensitive Film....Pages 385-392 Front Matter....Pages 375-376 Friction Measurement in Zero and Adverse Pressure Gradient Boundary Layer Using Oil Droplet Interferometric Method....Pages 393-402 Front Matter....Pages 403-404 Scaling of Turbulence Structures in Very-Rough-Wall Channel Flow....Pages 405-412 Characterizing a Boundary Layer Flow for Bubble Drag Reduction....Pages 413-420 Direct and Large Eddy Numerical Simulations of Turbulent Viscoelastic Drag Reduction....Pages 421-428 DNS of Supercritical Carbon Dioxide Turbulent Channel Flow....Pages 429-436 Front Matter....Pages 437-438 Evaluation of v 2 – f and ASBM Turbulence Models for Transonic Aerofoil RAE2822....Pages 439-450 Turbulence Modelling Applied to Aerodynamic Design....Pages 451-462