Direct and Large-Eddy Simulation VI: Proceedings of the Sixth International ERCOFTAC Workshop on Direct and Large-Eddy Simulation, held at the ... September 12-14, 2005 (ERCOFTAC Series, 10)

The sixth ERCOFTAC Workshop on Direct and Large-Eddy Simulation (DLES-6) was held at the University of Poitiers from September 12-14, 2005. Following the tradition of previous workshops in the DLES-series, this edition has reflected the state of the art of numerical simulation of transitional and turbulent flows and provided an active forum for discussion of recent developments in simulation techniques and understanding of flow physics. At a fundamental level this workshop addressed numerous theoretical and physical aspects of transitional and turbulent flows. At an applied level it contributed to the solution of problems related to energy production, transportation and the environment. Since the prediction and analysis of fluid turbulence and transition continues to challenge engineers, mathematicians and physicists, DLES-6 covered a large range of topics, from the more technical ones like numerical methods, initial and inflow conditions, the coupling of RANS and LES zones, subgrid and wall modelling to topics with a stronger focus on flow physics such as aero-acoustics, compressible and geophysical flows, flow control, multiphase flow and turbulent combustion, to quote only a few. The present proceedings contain the written versions of 7 invited lectures and 82 selected and reviewed contributions which are organized in 16 parts entitled Turbulent Mixing and Combustion; Subgrid Modelling; Flows involving Curvature, Rotation and Swirl; Free Turbulent Flows; Multiphase Flows; Wall Models for LES; Complex Geometries and Boundary Conditions; Flow Control; Heat Transfer; Aeroacoustics; Variable Density Flows; Inflow/Initial conditions; Separated/Reattached Flows; Hybrid RANS-LES Approach; Compressible Flows; and Numerical Techniques and POD. Contents......Page 13 Part I: Invited Lectures......Page 22 Direct Numerical Simulation of Turbulence and Scalar Exchange at Gas-Liquid Interfaces......Page 23 Large Eddy Simulation of Premixed Turbulent Combustion: FSD-PDF modeling......Page 37 Industrial LES with Unstructured Finite Volumes......Page 47 Current understanding of jet noise-generation mechanisms from compressible large-eddy-simulations......Page 59 Stable stratified, wall bounded, turbulent flows......Page 69 Physics and Control of Wall Turbulence......Page 79 The physics of turbulent mixing and clustering......Page 89 Part II: Turbulent Mixing and Combustion......Page 95 LES of Premixed Flame Longitudinal Wave Interactions......Page 96 Direct Numerical Simulation of Reacting Turbulent Multi-Species Channel Flow......Page 104 DNS/MILES of Reacting Air/H[sub(2)] Diffusion Jets......Page 112 Direct Numerical Simulation of turbulent reacting flows involving dilute particles......Page 120 Dissipation of Active Scalars in Turbulent Temporally Evolving Shear Layers with Density Gradients Caused by Multiple Species......Page 128 Part III: Subgrid Modelling......Page 136 Symmetry invariant subgrid models......Page 137 Formal properties of the additive RANS/DNS filter......Page 145 Analysis of the SGS energy budget for deconvolution- and relaxation-based models in channel flow......Page 153 Symmetry-preserving regularization of turbulent channel flow......Page 161 Large-eddy simulations of channel flows with variable filter-width-to-grid-size ratios......Page 169 LES of Transition to Turbulence in the Taylor Green Vortex......Page 177 Stochastic SGS modelling in homogeneous shear flow with passive scalars......Page 185 Towards Lagrangian dynamic SGS model for SCALES of isotropic turbulence......Page 193 The sampling-based dynamic procedure for LES: investigations using finite differences......Page 201 On the Evolution of the Subgrid-Scale Energy and Scalar Variance: Effect of the Reynolds and Schmidt numbers......Page 209 Part IV: Flows involving Curvature, Rotation and Swirl......Page 217 Large Eddy Simulation of Flow Instabilities in Co-Annular Swirling Jets......Page 218 Large Eddy Simulations of the turbulent flow in curved ducts: influence of the curvature radius......Page 226 Large Eddy Simulation of Transitional Rotor-Stator Flows using a Spectral Vanishing Viscosity Technique......Page 234 DNS of Rotating Homogeneous Shear Flow and Scalar Mixing......Page 242 Direct Numerical Simulation of Turbulent Rotating Rayleigh–Bénard Convection......Page 250 DNS of a Turbulent Channel Flow with Streamwise Rotation - Investigation on the Cross Flow Phenomena......Page 258 Dynamic structuring and mixing efficiency in rotating shear layers......Page 266 DNS of turbulent heat transfer in pipe flow with respect to rotation rate and Prandtl number effects......Page 274 DNS of the turbulent Ekman layer at Re=2000......Page 284 Part V: Free Turbulent Flows......Page 292 Large-Eddy Simulation of Coaxial Jets: Coherent Structures and Mixing Properties......Page 293 Computation of the Self-Similarity Region of a Turbulent Round Jet Using Large-Eddy Simulation......Page 301 The dependence on the energy ratio of the shear-free interaction between two isotropic turbulences......Page 309 Part VI: Multiphase Flows......Page 317 Orientation of elongated particles within turbulent flow......Page 318 On the closure of particle motion equations in large-eddy simulation......Page 326 Dispersion of Circular, Non-Circular, and Swirling Spray Jets in Crossflow......Page 334 Direct Numerical Simulation of Droplet Impact on a Liquid-Liquid Interface Using a Level-Set/Volume-Of-Fluid Method with Multiple Interface Marker Functions......Page 344 Direct numerical simulation of particle statistics and turbulence modification in vertical turbulent channel flow......Page 354 Large-eddy simulation of particle-laden channel flow......Page 362 High Resolution Simulations of Particle-Driven Gravity Currents......Page 370 Implicitly-coupled finite difference schemes for fictitious domain simulation of solid-liquid flow; marker, volumetric, and hybrid forcing......Page 378 Part VII: Wall Models for LES......Page 386 Development of Wall Models for LES of Separated Flows......Page 387 Anisothermal Wall Functions for RANS and LES of Turbulent Flows With Strong Heat Transfer......Page 395 Wall Layer Investigations of Channel Flow with Periodic Hill Constrictions......Page 403 A Multi-Scale, Multi-Domain Approach for LES of High Reynolds Number Wall-Bounded Turbulent Flows......Page 411 Part VIII: Complex Geometries and Boundary Conditions......Page 419 Modeling turbulence in complex domains using explicit multi-scale forcing......Page 420 Direct and Large-Eddy Simulations of a Turbulent Flow with Effusion......Page 428 Nasal Airflow in a Realistic Anatomic Geometry......Page 436 Large-eddy simulation of a purely oscillating turbulent boundary layer......Page 444 Large Eddy Simulation of a Turbulent Channel Flow With Roughness......Page 452 Part IX: Flow Control......Page 460 Bimodal control of three-dimensional wakes......Page 461 DNS/LES of Active Separation Control......Page 471 Direct Numerical Simulation of a Spatially Evolving Flow from an Asymmetric Wake to a Mixing Layer......Page 479 Part X: Heat Transfer......Page 487 LES of Flow and Heat Transfer in a Round Impinging Jet......Page 488 Direct Simulations of a Transitional Unsteady Impinging Hot Jet......Page 498 Part XI: Aeroacoustics......Page 506 Basic Sound Radiation from Low Speed Coaxial Jets......Page 507 Use of surface integral methods in the computation of the acoustic far field of a turbulent jet.......Page 515 Helmholtz decomposition of velocity field of a mixing layer: Application to the analysis of acoustic sources......Page 523 Large-Eddy Simulation of acoustic propagation in a turbulent channel flow......Page 531 Numerical Methodology for the Computation of the Sound Generated by a Non-Isothermal Mixing Layer at Low Mach Number......Page 539 A Hybrid LES-Acoustic Analogy Method for Computational Aeroacoustics......Page 547 Numerical simulation of wind turbine noise generation and propagation......Page 555 Large Eddy Simulation for Computation of Aeroacoustic Sources in 2D-Expansion Chambers......Page 565 Part XII: Variable Density Flows......Page 575 High resolution simulation of particle-driven lock-exchange flow for non-Boussinesq conditions......Page 576 LES of the jet in low Mach variable density conditions......Page 584 LES of Spatially-developing Stably Stratified Turbulent Boundary Layers......Page 592 Numerical Investigation on the Formation of Streamwise Vortices in a Stably Stratified Temporal Mixing Layer......Page 600 Part XIII: Inflow/Initial conditions......Page 608 Interfacing Stereoscopic PIV measurements to Large Eddy Simulations via Low Order Dynamical Systems......Page 609 LES of background fluctuations interacting with periodically incoming wakes in a turbine cascade......Page 617 Large Eddy Simulations Of Spatially Developing Flows Using Inlet Conditions......Page 625 Impact of Initial Flow Parameters on a Temporal Mixing Layer Evolution......Page 633 Part XIV: Separated/Reattached Flows......Page 641 A Comparative Study of the Turbulent Flow Over a Periodic Arrangement of Smoothly Contoured Hills......Page 642 Large-Eddy Simulation of a Subsonic Cavity Flow Including Asymmetric Three-Dimensional Effects......Page 650 Numerical Simulation of the Flow Around a Sphere Using the Immersed Boundary Method for Low Reynolds Numbers......Page 658 LES studies on the correspondence between the interaction of shear layers in post-reattachment recovery and in a plane turbulent wall jet......Page 666 Three Dimensional Wake Structure of Free Planar Shear Flow Around Horizontal Cylinder......Page 676 Part XV: Hybrid RANS-LES Approach......Page 684 Coupling from LES to RANS using eddy-viscosity models......Page 685 SAS Turbulence Modelling of Technical Flows......Page 693 Zonal LES/RANS modelling of separated flow around a three-dimensional hill......Page 701 Progress In Subgrid-Scale Transport Modeling Using Partial Integration Method For LES Of Developing Turbulent Flows......Page 709 Part XVI: Compressible Flows......Page 717 Towards Large Eddy Simulations of Scramjet Flows......Page 718 DNS and LES of compressible turbulent pipe flow with isothermal wall......Page 726 Large-eddy simulation of separated flow along a compression ramp at high Reynolds number......Page 734 DNS of Transitional Transonic Flow about a Supercritical BAC3-11 Airfoil using High-Order Shock Capturing Schemes......Page 742 Part XVII: Numerical Techniques and POD......Page 750 A Preconditioned LES Method for Nearly Incompressible Flows......Page 751 Particle dispersion in turbulent flows by POD low order model using LES snapshots......Page 759 On the influence of domain size on POD modes in turbulent plane Couette flow......Page 767 Implicit Time Integration Method for LES of Complex Flows......Page 775