Advances in Turbulence 3: Proceedings of the Third European Turbulence Conference Stockholm, July 3-6, 1990

ISBN-13: 9783642844010 / Angielski / Miękka / 2011 / 540 str.

Arne V. Johansson; P. Henrik Alfredsson

Opis

The book covers the following main topics: turbulence structure, transition, dynamical systems in relation to transition, turbulent combustion and mixing, turbulence affected by body forces, turbulence modeling, drag reduction, and novel experimental techniques.

Spis treści

I Turbulence Structure.- Structure and Statistics of Intermittency in Homogeneous Turbulent Shear Flow.- Vortex-Shedding and the Maintenance of Thick Turbulent Boundary Layers on Long Cylinders in Axial Flow.- Properties of Fine Scales in High Reynolds Number Turbulence.- Dynamics and Topology of Coherent Structures in a Plane Wake.- The Mechanisms of Formation and Breakdown of Soliton-like Coherent Structures in Boundary Layers.- Deformation and Splitting of Pseudo-elliptical Vortex Rings.- The Structure of Round Turbulent Jets in Counterflow: A Flow Visualization Study.- Waves in Turbulence.- The Evolution of Helical Waves on Axisymmetric Jets.- The Interaction Between Particles and Coherent Structures in a Plane Turbulent Jet.- Large Eddy Simulation of the Interaction Between Two Distinct Turbulent Velocity Scales.- Coherent Structures in Favourable and Adverse Pressure Gradient Boundary Layers.- II Transition and Dynamical Systems.- The Multifractal Nature of Turbulent Dispersion.- The Structure and Splitting of Puffs in Transitional Pipe Flow.- The Subharmonic Growth of a Wave-Packet in a Laminar Boundary Layer.- Large-Scale Structures in Helical Turbulence.- Experiments on the Effect of Mean Flow Unsteadiness on the Subharmonic Growth in a Plane Mixing Layer.- An Eigenfunction Expansion of Localized Disturbances.- The Role of Computation in Transition Research.- Experiments on the Evolution of a Point-like Disturbance in Plane Poiseuille Flow into a Turbulent Spot.- Direct Simulation of the Development of Turbulent Spots in Plane Couette Flow.- Transition from Order to Disorder in Elliptical Flow: A Direct Path to Shear Flow Turbulence.- Turbulent Spots in a Rotating Blasius Boundary Layer.- Structure and Statistics of Homogeneous Turbulence Obtained from a Direct Simulation.- On the Mechanism of “Side jet” Generation in Periodically Excited Axisymmetric Jets.- Jets of Air-Helium Mixtures in Air.- An Experimental Study of Transition in Plane Couette Flow.- Dynamical Theory and Mixing.- Algebraization of 2-D Ideal Fluid Hydrodynamical Systems and Their Finite-Mode Approximations.- III Turbulent Combustion and Mixing.- Reactive Mixing Layers and Turbulent Combustion.- Concentration Statistics in Shear-free Grid-Generated Turbulence with a Second-Order Rapid Reaction.- Turbulent Combustion Modelling — A Review.- Effects of Turbulence on the Mixing and Chemical Reaction for Cross Flow and Coflowing Jets.- Joint Statistics of Scalars and Their Gradients in Nearly Homogeneous Turbulence.- IV Turbulence Affected by Body Forces.- Transport of Passive Scalars in Neutrally and Stably Stratified Homogeneous Turbulent Shear Flows.- A Model for the Turbulent Breakdown of Internal Gravity Waves.- Turbulence and Gravitation.- Spectral Properties of Turbulence and the Structure of the Atmospheric Boundary Layer.- Self-similar Structures in 2-D Turbulence: Experimental and Theoretical Study of Vortex Multipoles.- Large Eddy Simulation of MHD Flows in Metallurgy.- V Turbulence Modelling.- The Modelling of Perturbed Turbulent Boundary Layers.- Towards an EDQNM-Closure for Inhomogeneous Turbulence.- Defining the Zonal Structure of Turbulence Using the Pressure and Invariants of the Deformation Tensor.- Modelling the Flow in Droplet-Driven Sprays.- Anisotropie Dissipation Rate — Implications for Reynolds Stress Models.- Kinematics of Small Scale Motions in Homogeneous Isotropic Turbulence.- Experimental and Theoretical Investigation of a Homogeneous Turbulent Shear Flow.- New Physics and Models for Compressible Turbulent Flows.- VI Drag Reduction and Turbulence Control.- Turbulence Control.- Near-Wall Turbulence Structure over Misaligned Riblets.- Direct Drag Measurements in a LEBU Manipulated Flat-Plate Boundary Layer.- VII Novel Experimental Techniques.- An Analysis of a Natural Turbulent Boundary Layer Through the Processing of Horizontal Hydrogen Bubble Lines.- Turbulence Measurements Using Double-Chip Silicon Sensors.- Active Turbulence Generation in a Laboratory Wind Tunnel.- Effects of Longitudinal Diffusion in the Fluid and of Heat Conduction to the Substrate on the Response of Wall flot-Film Gages.- Measuring Invariant (Frame Independent) Quantities Composed of Velocity Derivatives in Turbulent Flows.- The Use of Near-Wall Hot-Wire Probes for Time-Resolved Skin-Friction Measurements.- List of Participants.- Index of Contributors.