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Full Description
The workshop 'Direct and Large-Eddy Simulation-4' was held at the Uni versity ofTwente, July 18-20, 2001. DLES4is part of a series ofERCOFfAC workshops that originated at the University of Surrey in 1994. Over the years the DLES-series has grown into a major international venue focused on the development and application of direct and large-eddy simulation. Fundamental turbulence - and modeling issues but also elements from modem numerical analysis are at the heart of this field of interest, a fact which is clearly reflected by the contents of these proceedings. Modeling and simulation of complex flow phenomena forms a central ele ment in a large volume of scientific - and applied research. The problem of simulating turbulent flows and capturing their main dynamical features remains a highly motivating challenge. This three-day workshop focused on recent de velopments in numerical and physical modeling of complex flow phenomena concentrating on modem strategies in the field of direct and large-eddy simula tion. A major aim was to promote the exchange of ideas and problems from both industrial and academic background paying attention to physical, mathematical and engineering aspects.
Contents
Experimental measurements of subgrid passive scalar anisotropy and universality.- Simulation of the motion of particles in turbulent flow.- On the accuracy of symmetry-preserving discretization.- DNS of turbulent supersonic channel flow.- LES of wall-bounded turbulence based on a 6th-order compact scheme.- Large eddy simulations using the subgrid-scale estimation model and truncated Navier-Stokes dynamics.- Assessment of some models for LES without/with explicit filtering.- Alignment of eigenvectors for strain rate and subgrid-scale stress tensors.- A finite-mode spectral model of homogeneous and isotropic Navier-Stokes turbulence.- Analysing near-wall behaviour in a separating turbulent boundary layer by DNS.- A dynamic subgrid-scale model based on the turbulent kinetic energy.- A model using incremental scales applied to LES of turbulent channel flow.- Progress in direct simulations of 3D turbulent flames.- Direct numerical simulation of premixed turbulent combustion.- Partially-premixed combustion during autoignition of a turbulent nonpremixed flame.- DNS of turbulent H2/O2 premixed flames using compressible and low-mach number formulations.- Numerical simulation of turbulent reacting flow.- Transition in LES of bluff body flows and airfoils.- Large-eddy simulation of flow around a high lift airfoil.- An LES investigation of the separated flow past an airfoil at high angle of attack.- Direct numerical simulation of three-dimensional transition in the incompressible flow around a wing.- DNS of turbulent flows in a channel with roughness.- Dynamics of transitional noncircular buoyant reactive jets with side-wall effects.- Direct and large-eddy simulation of a transitional rectangular jet.- Coherent structures in excited spatially evolving round jets.- Direct and large-eddy simulations of compressible open cavity flows.- Diagonal Cartesian Method on staggered grids for a DNS in a tube bundle.- A new approach towards subgrid modeling in magnetohydrodynamic turbulence.- Numerical diffusion based on high-order derivatives in MUSCL schemes for LES on unstructured grids.- Large-eddy simulation of variable-density turbulent flows impinging on wall plates and cavity enclosures.- An adaptive wavelet method for fluid-structure interaction.- Development of coherent perturbations in a laminar boundary layer.- LES of supersonic boundary layers using the approximate deconvolution model.- Large-eddy simulation of a spatially growing thermal boundary layer in a turbulent square duct.- DNS of transition near the leading edge of an aerofoil.- DNS of turbulent channel flow in the presence of a thin liquid film.- Direct Simulation of transonic flow over a bump.- The role of deconvolution and numerical discretization in subgrid-scale modeling.- Differential rotation effects within a turbulent Batchelor vortex.- LES of flow around a circular cylinder at a high subcritical Reynolds number with cartesian grids.- Large-eddy simulation of turbulent flows over a cylinder of square cross-section.- Large-eddy simulation of turbulent flow past straight and tapered circular cylinders.- LES of a turbulent flow around a sharp trailing edge.- Partly compressible fluids for DNS/LES of free and bounded turbulent flows.- Large-eddy simulation of complex internal flows.- Large-eddy simulation of the flow around a low pressure turbine blade.- The turbulent reacting shear layer: DNS and LES.- DNS study of supersonic mixing layers.- 2D-LES of a free-surface mixing layer.- Large-eddy simulation of the flow over a wall-mounted fence.- Active control of turbulent separated flows using large-eddy simulation.- Large-eddy simulation of convective entrainment in linearly and discretely stratified fluids.- Direct numerical simulation of turbulence and interfacial dynamics in countercurrent air-water flows.- Direct and large-eddy simulation of particle-laden flows using the point-particle approach.- Large-eddy simulation of turbulent shear flows laden with bubbles.- Dynamics of coherent vortices in Large-Eddy Simulation.- Detached-eddy simulation of the separated flow around a forebody cross-section.- Turbulence modification in a stably-stratified channel flow.- The use and relevance of reacting LES in engineering design cycle.- Direct numerical simulations of multiphase flows.
