Engineering Turbulence Modelling and Experiments 6

ERCOFTAC International Symposium on Engineering Turbulence and Measurements - ETMM6

1st Edition - May 5, 2005
Editor: Wolfgang Rodi
Language: English
Hardback ISBN:
9 7 8 - 0 - 0 8 - 0 4 4 5 4 4 - 1
eBook ISBN:
9 7 8 - 0 - 0 8 - 0 5 3 0 9 5 - 6

Proceedings of the world renowned ERCOFTAC (International Symposium on Engineering Turbulence Modelling and Measurements).The proceedings include papers dealing with the following… Read more

Engineering Turbulence Modelling and Experiments 6

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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.

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

AUTHOR INDEX

Life Sciences

Physical Sciences & Engineering

Social Sciences & Humanities

Health

Engineering Turbulence Modelling and Experiments 6

ERCOFTAC International Symposium on Engineering Turbulence and Measurements - ETMM6

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Wolfgang Rodi