Turbulent Shear Flows 4: Selected Papers from the Fourth International Symposium on Turbulent Shear Flows, University of Karlsruhe, Karlsruhe,

ISBN-13: 9783642699986 / Angielski / Miękka / 2011 / 400 str.

L. J. S. Bradbury; F. Durst; B. E. Launder

Opis

The Fourth International Symposium on Turbulent Shear Flows took place at Karlsruhe University in Germany. The papers presented at this Symposium encompassed a similar range to that of the previous meetings, with greater emphasis placed on experimental work, and continued a trend towards the examination of complex flows. Once again, three dimensional, recirculating and reacting flows featured strongly in the programme and were complemented by consideration of two-phase flows and discussions of both numerical and experimental techniques. The Symposium brought together some 300 participants from all over the world, and it was evident that there is a need for Turbulent Shear Flows Symposia, in order to obtain and communicate new information useful to researchers in the field of turbulent flows and of interest to engineers who design flow equipment. This volume contains 27 papers selected from more than 100 presentations at the Symposium which have been reviewed and edited before publication. Together they provide an indication of the status of current knowledge on the subjects represented at the Sympo sium. They are grouped into four sections, namely: Fundamentals Free Flows Boundary Layers Reacting Flows As in previous volumes in this series, each section begins with an introductory article con sidering the papers which follow in the broader context of available literature and current research."

Spis treści

1 Fundamentals.- Fundamental Aspects of Turbulent Shear Flows — Introductory.- The Dimension and Intermittency of Atmospheric Dynamics.- Three-Dimensional Vortex Dynamics near a Wall.- Diffusion Behind a Line Source in Grid Turbulence.- Two-Point Closure Used for a Sub-Grid Scale Model in Large Eddy Simulations.- Reynolds-Stress Closure Model for Conditional Variables.- Parameterization of Turbulent Transport in Swirling Flows — I: Theoretical Considerations.- A Comparison of Triple-Moment Temperature-Velocity Correlations in the Asymmetric Heated Jet with Alternative Closure Models.- II Free Flows.- to Papers on Free Turbulent Flow.- Statistical Characteristics of the Turbulent Wake Behind an Intersecting Cruciform Circular Cylinder.- Effects of Streamline Curvature on Laminar and Turbulent Wakes.- Experimental Investigation of the Turbulent Structure of Vortex Wakes.- Numerical Study of the Phenomenon of Turbulence Suppression in a Plane Shear Layer.- Structural Features of the Near Region of an Asymmetric Turbulent Wake.- An Investigation of Reynolds Stress Structures in Plane Turbulent Wakes.- Turbulent Boundary Layer-Wake Interaction.- III Boundary Layers.- Boundary Layers.- Heat Transfer Mechanism and Associated Turbulence Structure in the Near-Wall Region of a Turbulent Boundary Layer.- The Behaviour of a Compressible Turbulent Boundary Layer Under Incipient Separation Conditions.- Secondary Currents in a Straight Channel Flow and the Relation to Its Aspect Ratio.- A Computational Preston Tube Method.- Measurements of the Wall Shear Stress in Boundary Layer Flows.- Hysteresis of Turbulent Stresses in Wall Flows Subjected to Periodic Disturbances.- Periodic Turbulent Shear Flows.- IV Reacting Flows.- Reacting Flows — Introductory.- Simultaneous Measurement of Velocity and Scalars in a Turbulent Non-premixed Flame by Combined-Laser Doppler Velocimetry and Laser Raman Scattering.- Assessment of Two Turbulence Models for Turbulent Round Diffusion Jets with Combustion.- Calculated Scalar Dissipation in Two-Dimensional Flows.- Nonequilibrium Chemistry in an Isothermal Turbulent Flow.- Lagrangian Models for Turbulent Combustion.- A Model for Flame Extinction in Turbulent Flow.- Index of Contributors.