The practical importance of turbulence led the U.K. Royal Academy of Engineering to launch an Initiative on Turbulence, the most important outcome of which was the definition and agreement of the 1999 Newton Institute Research Programme on Turbulence. The main aim of the- month programme, held at the institute in Cambridge, was to bring together the mathematics and engineering communities involved in the turbulence area to address the many problems and to map out future strategy. As a part of the Research Programme, a Symposium on Direct and Large-Eddy Simulation was jointly organised with ERCOFfAC through their Large-Eddy Simulation Interest Group and took place in May 1999. Two previous ERCOFf AC Workshops had already taken place on these closely related varieties of turbulence simulation, at The University of Surrey in 1994 and at Universite Joseph Fourier, Grenoble in 1996. The Symposium at Cambridge was therefore the third in the ERCOFTAC series, enhanced by the presence of leading figures in the field from Europe and the USA who were resident at INI for that period of the Research Programme. Professors M. Germano, A. Leonard, J. Jimenez, R. Kerr and S. Sarkar gave the invited lectures, text versions of which will be found in this volume. As occurred at the previous two ERCOFT AC workshops, there were almost one hundred participants mostly from Europe but including some from Japan and the USA, including on this occasion resident scientists of the INI Research Programme.

Zusammenfassung
Proceedings of the Isaac Newton Institute Symposium/ERCOFTAC Workshop held in Cambridge, UK, 12-14 May, 1999

Inhalt
Balancing Errors in LES.- Large Eddy Simulation of a Square Duct with a Heat Flux.- Large Eddy Simulations of Stratified Flows.- Large-Eddy Simulation of Spatially Developing Isothermal and Buoyant Jets.- LES of Heat Transfer in Turbulent Flow over a Wall-Mounted Matrix of Cubes.- Comparison of Two One-Equation Subgrid Models in Recirculating Flows.- On Eddy-Viscosity Sub-Grid Models.- Large-Eddy Simulation of a Three-Dimensional Shear-Driven Turbulent Boundary Layer.- Large Eddy Simulation of a Spatially Growing Boundary Layer using a Dynamic Mixed Model.- LES of Shock Induced Separation.- Large-eddy Simulation of Shock/Homogeneous Turbulence Interaction.- Applications of a Lagrangian Mixed SGS Model in Generalized Coordinates.- A Tensor-Diffusivity Subgrid Model for Large-Eddy Simulation.- The Approximate Deconvolution Model Applied to LES of Turbulent Channel Flow.- Compressible Subgrid Models for Large Eddy Simulations of Cold and Hot Mixing Layers.- Assessment of Non-Fickian Subgrid-Scale Models.- Deconvolution of Subgrid-Scales for the Simulation of Shock-Turbulence Interaction.- Exact Expansions for Filtered-Scales Modelling with a Wide Class of LES Filters.- From RANS to DNS: Towards a Bridging Model.- A Scale-Residual Model for Large-Eddy Simulation.- A-priori Tests of SGS Models in Fully Developed Pipe Flow and a New Local Formulation.- Analysis of Mesh-Independent Subfilter-Scale Models for Turbulent Flows.- Incremental Unknowns: a Tool for Large Eddy Simulations?.- Dynamic Estimation Tests of Decaying Isotropic Turbulence.- Particle Dispersion in Supersonic Shear Layer by Direct Numerical Simulation.- Mixing of Weakly and Strongly Diffusive Passive Scalars in Isotropic Turbulence.- Investigation of Turbulent Non-Premixed Flames using DNS with Detailed Chemistry.- Turbulent Flow in Coiled Pipes (DNS).- 3D Vortex Dynamics and Natural Vortex Dislocations in the Wake of a Circular Cylinder by Direct Numerical Simulation.- Three-Dimensional Transition Features in the Transonic Viscous Flow around a Wing by Direct Simulation.- Contributions of DNS to the Investigation of Compressible Turbulent Shear Flows.- Statistical Analysis of the Turbulent Mixing Layer.- Direct Numerical Simulation of Flow over a Swept Rearward-Facing Step.- DNS of Turbulent Flow in a Channel with Longitudinally Ridge Walls.- High-Order Skew-Symmetric Jameson Schemes for Unsteady Compressible Flows.- Towards DNS of Separated Turbulent Boundary Layers.