Turbulent Shear Flows I

The present book contains papers that have been selected from contributions to the First International Symposium on Turbulent Shear Flows which was held from the 18th to 20th April 1977 at The Pennsylvania State University, University Park, Pennsylvania, USA. Attend ees from close to 20 countries presented over 100 contributions at this meeting in which many aspects of the current activities in turbulence research were covered. Five topics received particular attention at the Symposium: Free Flows Wall Flows Recirculating Flows Developments in Reynolds Stress Closures New Directions in Modeling This is also reflected in the five chapters of this book with contributions from research workers from different countries. Each chapter covers the most valuable contributions of the conference to the particular chapter topic. Of course, there were many additional good con tributions to each subject at the meeting but the limitation imposed on the length of this volume required that a selection be made. The realization of the First International Symposium on Turbulent Shear Flows was p- sible by the general support of: U. S. Army Research Office U. S. Navy Research Office Continuing Education Center of The Pennsylvania State University The conference organization was carried out by the organizing committee consisting of: F. Durst, Universitat Karlsruhe, Karlsruhe, Fed. Rep. of Germany V. W. Goldschmidt, Purdue University, West Lafayette, Ind. , USA B. E. Launder, University of California, Davis, Calif. , USA F. W. Schmidt, Pennsylvania State University, University Park, Penna.

Inhalt
I Free Flows.- Introductory Remarks.- Intermittency in Free Turbulent Shear Flows.- Some Measurements of Spatial Correlations in an Axisymmetric Turbulent Jet.- Near Field Velocity Measurements in a Fully Pulsed Subsonic Air Jet.- Turbulent Temperature and Thermal Flux Characteristics in the Wake of a Cylinder.- The Calculation of Three-Dimensional Turbulent Free Jets.- II Wall Flows.- Introductory Remarks.- Experimental Investigation of the Structure of Near-Wall Turbulence and Viscous Sublayer.- Thermal Characteristics of a Turbulent Boundary Layer with an Inversion of Wall Heat Flux.- Measurements of Developing Turbulent Flow in a Square Duct.- Measurements in the Thick Axisymmetric Turbulent Boundary Layer and the Near Wake of a Low-Drag Body of Revolution.- Structure and Development of a Turbulent Boundary Layer in an Oscillatory External Flow.- III Recirculating Flows.- Introductory Remarks.- Perturbations of Turbulent Pipe Flow.- Measurements of Mean Velocity and Reynolds Stresses in Some Regions of Recirculating Flow.- Theoretical and Experimental Investigations of Turbulent Flows with Separation.- Numerical Difficulties in the Calculation of Complex Turbulent Flows.- The Calculation of Two-Dimensional Turbulent Recirculating Flows.- IV Developments in Reynolds Stress Closures.- Stress Transport Closures Into the Third Generation.- A Family of Turbulence Models for Three-Dimensional Boundary Layers.- Numerical Prediction of Axisymmetric Free Shear Flows with a Reynolds Stress Closure.- Buoyancy Effects in Entraining Turbulent Boundary Layers: a Second-Order Closure Study.- The Clipping Approximation and Inhomogeneous Turbulence Simulations.- The Temperature Skewness Budget in the Lower Atmosphere and Its Implications for Turbulence Modeling.- TheoreticalStudy of the Reynolds Stress Equations.- V New Directions in Modeling.- Subgrid Scale Modeling An Introduction and Overview.- Studies of Subgrid Modelling with Classical Closures and Burgers Equation.- Direct Numerical Simulation of Turbulent Velocity, Pressure, and Temperature Fields in Channel Flows.- Improved Methods for Large Eddy Simulations of Turbulence.- Numerical Simulation of Turbulent Mixing Layers via Vortex Dynamics.- Index of Contributors.