Engineering Turbulence Modelling and Experiments 6

Engineering Turbulence Modelling and Experiments 6

ERCOFTAC International Symposium on Engineering Turbulence and Measurements - ETMM6

1st Edition - May 5, 2005

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  • Editor: Wolfgang Rodi
  • Hardcover ISBN: 9780080445441
  • eBook ISBN: 9780080530956

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Proceedings of the world renowned ERCOFTAC (International Symposium on Engineering Turbulence Modelling and Measurements).The proceedings include papers dealing with the following areas of turbulence:·Eddy-viscosity and second-order RANS models ·Direct and large-eddy simulations and deductions for conventional modelling ·Measurement and visualization techniques, experimental studies ·Turbulence control ·Transition and effects of curvature, rotation and buoyancy on turbulence ·Aero-acoustics ·Heat and mass transfer and chemically reacting flows ·Compressible flows, shock phenomena ·Two-phase flows ·Applications in aerospace engineering, turbomachinery and reciprocating engines, industrial aerodynamics and wind engineering, and selected chemical engineering problems Turbulence remains one of the key issues in tackling engineering flow problems. These problems are solved more and more by CFD analysis, the reliability of which depends strongly on the performance of the turbulence models employed. Successful simulation of turbulence requires the understanding of the complex physical phenomena involved and suitable models for describing the turbulent momentum, heat and mass transfer. For the understanding of turbulence phenomena, experiments are indispensable, but they are equally important for providing data for the development and testing of turbulence models and hence for CFD software validation. As in other fields of Science, in the rapidly developing discipline of turbulence, swift progress can be achieved only by keeping up to date with recent advances all over the world and by exchanging ideas with colleagues active in related fields.

Table of Contents

  • 1. Invited Lectures

    • Rapid techniques for measuring and modeling turbulent flows in complex geometries

    • Large-Eddy-Simulation of complex flows using the immersed boundary method

    • Transition modelling for general purpose CFD codes

    • Possibilities and limitations of computer simulations of industrial turbulent multiphase flows

    2. Turbulence Modelling

    • Turbulence Model and its application to forced and natural convection

    • Calibrating the length scale equation with an explicit algebraic Reynolds stress constitutive relation

    • Near-wall modification of an explicit algebraic Reynolds stress model using elliptic blending

    • Assessment of turbulence models for predicting the interaction region in a wall jet by reference to LES solution and budgets

    • Eddy collision models for turbulence

    • A stress-strain lag eddy viscosity model for unsteady mean flow

    • Turbulence modelling of statistically periodic flows: the case of the synthetic jet

    • Behaviour of turbulence models near a turbulent / non-turbulent interface revisited

    • Behaviour of nonlinear two-equation turbulence models at the free-stream edges of turbulent flows

    • Extending an analytical wall-function for turbulent flows over rough walls

    • Bifurcation of second moment closures in rotating stratified flow

    • Turbulence Model for wall-bounded flow with arbitrary rotating axes

    • Application of a new algebraic structure-based model to rotating turbulent flows

    • k-å modeling of turbulence in porous media based on a two-scale analysis

    3. Direct and Large-Eddy Simulations

    • Effect of a 2-D rough wall on the anisotropy of a turbulent channel flow

    • Direct numerical simulation of rotating turbulent flows through concentric annuli

    • Numerical simulation of compressible mixing layers

    • LES in a U-bend pipe meshed by polyhedral cells

    • Large eddy simulation of impinging jets in a confined flow

    • LES study of turbulent boundary layer over a smooth and a rough 2D hill model

    • Flow features in a fully developed ribbed duct flow as a result of LES

    • Coherent structures and mass exchange processes in channel flow with spanwise obstructions

    • Large Eddy Simulation of natural convection boundary layer on a vertical cylinder

    • Development of the subgrid-scale models in large eddy simulation for the finite different schemes

    • Assessment of the digital filter approach for generating large eddy simulation inlet conditions

    4. Hybrid LES/RANS Simulations

    • Hybrid LES-RANS : Computation of the flow around a three-dimensional hill

    • Applications of a renormalization group based hybrid RANS/LES model

    • Application of zonal LES/ILES approaches to an unsteady complex geometry flow

    • Interface conditions for hybrid RANS/LES calculations

    • Approximate near-wall treatments based on zonal and hybrid RANS-LES methods for LES at high Reynolds numbers

    • LES, T-RANS and hybrid simulations of thermal convection at high RA numbers

    5. Application of Turbulence Models

    • Industrial practice in turbulence modelling: An evaluation of QNET-CFD

    • Three-dimensional flow computation with Reynolds stress and algebraic stress models

    • Comparison of turbulence models in case of jet in crossflow using commercial CFD code

    6. Experimental Techniques and Studies

    • Time resolved PIV measurements for validating LES of the turbulent flow within a PCB enclosure model

    • Skin friction measurements in complex turbulent flows using direct methods

    • Reynolds number dependence of elementary vortices in turbulence

    • Near-wake turbulence properties in the high Reynolds incompressible flow around a circular cylinder by 2C and 3C PIV

    • Single- and two-point LDA measurements in the turbulent near wake of a circular cylinder

    • Aerodynamics of a half-cylinder in ground effect

    • Turbulent wall jet interaction with a backward facing step

    • The role of pressure-velocity correlation in oscillatory flow between a pair of bluff bodies

    • Turbulent structures in a supersonic jet-mixing layer interaction

    • Turbulent properties of twin circular free jets with various nozzle spacing

    • LDA-masurements of the turbulence in and around a venturi

    7. Transition

    • Modelling of unsteady transition with a dynamic intermittency equation

    • Transition to turbulence and control in the incompressible flow around a NACA0012 wing

    8. Turbulence Control

    • Some observations of the Coanda effect

    • Active control of turbulent separated flows by means of large scale vortex excitation

    • Large-eddy simulation of a controlled flow cavity

    • Parametric study of surfactant-induced drag-reduction by DNS

    • Effect of non-affine viscoelasticity on turbulence generation

    • Experimental and numerical investigation of flow control on bluff bodies by passive ventilation

    9. Aerodynamic Flows

    • Application of Reynolds stress models to high-lift aerodynamics applications

    • Turbulence modelling in application to the vortex shedding of stalled airfoils

    • The computational modelling of wing-tip vortices and their near-field decay

    • URANS computations of shock induced oscillations over 2D rigid airfoil: Influence of test section geometry

    • Zonal multi-domain RANS/LES simulation of airflow over the Ahmed body

    • Numerical simulation and experimental investigation of the side loading on a high speed train

    • Large-scale instabilities in a STOVL upwash fountain

    10. Aero-Acoustics

    • Direct numerical simulation of large-eddy-break-up devices in a boundary layer

    • Blade tip flow and noise prediction by large-eddy simulation in horizontal axis wind turbines

    • A zonal RANS/LES approach for noise sources prediction

    • Aerodynamics and acoustic sources of the exhaust jet in a car air-conditioning system

    • Characterization of a separated turbulent boundary layer by time-frequency analyses of wall pressure fluctuations

    11. Turbomachinery Flows

    • Study of flow and mixing in a generic GT combustor using LES

    • An evaluation of turbulence models for the isothermal flow in a gas turbine combustion system

    • Large Eddy Simulations of heat and mass transfers in case of non isothermal blowing

    • Turbulence modelling and measurements in a rotor-stator system with throughflow

    12. Heat and Mass Transfer

    • Impinging jet cooling of wall mounted cubes

    • Numerical and experimental study of turbulent processes and mixing in jet mixers

    • Effects of adverse pressure gradient on heat transfer mechanism in thermal boundary layer

    • Stochastic modelling of conjugate heat transfer in near-wall turbulence

    • Study of the effect of flow pulsation on the flow field and heat transfer over an inline cylinder array using LES

    • Large eddy simulation of scalar mixing

    13. Combustion Systems

    • Experimental characterization and modelling of inflow conditions for a gas turbine swirl combustor

    • On the sensitivity of a free annular swirling jet to the level of swirl and a pilot jet

    • Prediction of pressure oscillations in a premixed swirl combustor flow and comparison to measurements

    • Interaction between thermoacoustic oscillations and spray combustion

    • Dynamics of lean premixed systems: Measurements for large eddy simulation

    • White in time scalar advection model as a tool for solving joint composition PDF equations: Derivation and application

    • The effects of micromixing on combustion extinction limits for microcombustor applications

    • Joint RANS/LES approach to premixd flames modelling in the context of the TFC combustion model

    • Optical observation and discrete vortex analysis of vortex-flame interaction in a plane premixed shear flow

    14. Two-Phase Flows

    • Simulation of mass-loading effects in gas-solid cyclone separators

    • On Euler/ Euler Modeling of turbulent particle diffusion in dispersed two-phase flows

    • Influence of the gravity field on the turbulence seen by heavy discrete particles in an inhomogeneous flow

    • Modelling turbulent collision rates of inertial particles

    • Large eddy simulation of the dispersion of solid particles and droplets in a turbulent boundary layer flow

    • Dynamic self-organization in particle-laden turbulent channel flow


Product details

  • No. of pages: 1012
  • Language: English
  • Copyright: © Elsevier Science 2005
  • Published: May 5, 2005
  • Imprint: Elsevier Science
  • Hardcover ISBN: 9780080445441
  • eBook ISBN: 9780080530956

About the Editor

Wolfgang Rodi

Affiliations and Expertise

Institute for Hydromechanics, University of Karlsruhe, Germany.

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