Synopses & Reviews
Turbulence remains an unsolved problem even though we now know how to produce directly, with the help of modern supercomputers, accurate approximations to the equations that govern turbulent flows. The fact that we can predict some turbulence in this limited sense is nevertheless an enormous step towards the goal of full understanding. Direct numerical simulations and large-eddy simulations are these numerical solutions of turbulence, which reproduce with remarkable fidelity the statistical, structural and dynamical properties of physical turbulent and transitional flows. This volume contains selected papers from the First ERCOFTAC Workshop on Direct and Large-Eddy Simulation, which was held at the University of Surrey, Guildford, U.K. from 28--30 March 1994. The variety of flows now accessible to simulation is evident throughout the volume. Not only are many types of internal and external flow represented, including some complex geometries of engineering or geophysical importance, but the dynamically distinct regimes of incompressible and compressible flow, stratified, buoyant and other thermal flows, and chemically reacting flow are all simulated successfully. This book reveals the current state of direct numerical simulation and large-eddy simulation of transitional and turbulent flows, and will be an invaluable reference for all those with an active interest in these techniques.
Synopsis
This volume contains papers from the First ERCOFTAC Workshop on Direct and Large-Eddy Simulation. The variety of flows are examined. Types of internal and external flow are represented, including some complex geometries of engineering or geophysical importance.
Table of Contents
Preface. Structures from Simulations. Large-Scale Structures in the Turbulent Flow near a Right-Angled Corner; S. Gavrilakis. Very-Large-Scale Structures in DNS; K.H. Bech, H.I. Andersson. Eddy Structures in a Simulated Plane Turbulent Jet Educed by Pattern Recognition Analysis; S.H. Lo. Subgrid-Scale Modelling. Experimental Study of Similarity Subgrid-Scale Models of Turbulence in the Far-Field of a Jet; S. Liu, C. Meneveau, J. Katz. Direct and Large Eddy Simulations of Round Jets; M. Fatica, P. Orlandi, R. Verzicco. Subgrid-Scale Models Based upon the Second-Order Structure-Function of Velocity; P. Comte, O. Métais, E. David, F. Ducros, M.A. Gonze, M. Lesieur. Significant Terms in Dynamic SGS-Modeling; M. Olsson, L. Fuchs. Assessment of the Generalised Normal Stress and the Bardina Reynolds Stress Subgrid-Scale Models in Large Eddy Simulation; K. Horiuti. Subgrid-Scale Modelling in the Near-Wall Region of Turbulent Wall-Bounded Flows; C. Härtel, L. Kleiser. Two-Dimensional Simulations with Subgrid Scale Models for Separated Flow; P. Sagaut, B. Troff, T.H. Lê, T.P. Loc. A priori Test of a Subgrid Scale Stress Tensor Model Including Anisotropy and Backscatter Effects; T. Goutorbe, D. Laurence, V. Maupu. Subgrid-Modelling in LES of Compressible Flow; A.W. Vreman, B.J. Geurts, J.G.M. Kuerten. Stratified and Atmospheric Flows. Sheared and Stably Stratified Homogeneous Turbulence: Comparison of DNS and LES; T. Gerz, J.M.L. Palma. Direct Numerical Simulation of a Stably Stratified Turbulent Boundary Layer; I.R.Cowan, R.E. Britter. A Neutral Stratified Boundary Layer: a Comparison of Four Large-Eddy Simulation Computer Codes; A. Andrén, A. Brown, P.J. Mason, J. Graf, U. Schumann, C.-H. Moeng, F.T.M. Nieuwstadt. The Large-Eddy Simulation of Dispersion of Passive and Chemically Reactive Pollutants in a Convective Atmospheric Boundary Layer; J.P. Meeder, I. Boumans, F.T.M. Nieuwstadt. Numerical Simulation of Breaking Gravity Waves below a Critical Level; A. Dörnbrack, U. Schumann. Transition. Stability of the Natural Convection Flow in Differentially Heated Rectangular Enclosures with Adiabatic Horizontal Walls; R.J.A. Janssen, R.A.W.M. Henkes. Direct Simulation of Breakdown to Turbulence following Oblique Instability Waves in a Supersonic Boundary Layer; N.D. Sandham, N.A. Adams, L. Kleiser. Mechanisms and Models of Boundary Layer Receptivity Deduced from Large-Eddy Simulation of By-Pass Transition; Z. Yang, P.R. Voke, A.M. Savill. Receptivity by Direct Numerical Simulation; G. Casalis, B. Cantaloube. Direct Num erical Simulation of Transition in a Spatially Growing Compressible Boundary Layer Using a New Fourier Method; Y. Guo, N.A. Adams, L. Kleiser. Complex Geometries. Large Eddy Simulation of Flow and heat Transfer in Compact Heat Exchangers; M. Ciofalo, G. Lombardo, M.W. Collins. Large Eddy Simulation of Turbulent Flow through a Straight Square Duct and a 180° Bend; M. Breuer, W. Rodi. Numerical Simulation of Turbulent Flow over a Wavy Boundary; C. Maass, U. Schumann. Large Eddy Simulation of Turbulent Boundary Layer Flow over a Hemisphere; M. Manhart, H. Wengle. Large Eddy Simulation of Compound Channel Flow with One Floodplain at Re ≈ 42000; T.g. Thomas, J.J.R. Williams. Large Eddy Simulation Applied to an Electromagnetic Flowmeter; B.J. Boersma, J.G.M. Eggels, M.J.B.M. Pourquié, F.T.M. Nieuwstadt. Compressible, Reacting and Thermal Flows. On the Formation of Small Scales in a Compressible Mixing Layer; K.H. Luo, N.D. Sandham. Direct Simulation of Turbulence Phenomena in Compressible Boundary Layers; E. Laurien, J. Delfs. DNS of a M = 2 Shock Interacting with Isotropic Turbulence; R. Hannappel, R. Friedrich. Direct and Large Eddy Simulations of Chemically Reacting Flows; J.P. Chollet, M. Si Ameur, M.R. Vallcorba. Flow Mechanisms and Heat Transfer in Rayleigh--Bénard Convection at Small Prandtl Numbers; G. Grötzbach, M. Wörner. Direct and Large Eddy Simulation of Transient Buoyant Plumes: a Comparison with an Experiment; R.J.M. Bastiaans, C.C.M. Rindt, A.A. van Steenhoven, F.T.M. Nieuwstadt. Numerical Investigation of Turbulent Structures in Thermical Impinging Jets; S. Gao. Numerical Simulations of 2-D Turbulent Natural Convection in Differentially Heated Cavities of Aspect Ratios 1 and 4; S. Xin, P. le Quéré.