Engineering Turbulence Modelling and Experiments 6

Engineering Turbulence Modelling and Experiments 6

Turbulence Modelling -- 3. Direct and Large-Eddy Simulations -- 4. Hybrid LES/RANS Simulations -- 5. Application of Turbulence Models -- 6. Experimental Techniques and Studies -- 7. Transition -- 8. Turbulence Control -- 9.

Author: Wolfgang Rodi

Publisher: Elsevier Science

ISBN: 0080445446

Category: Technology & Engineering

Page: 990

View: 138

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.
Categories: Technology & Engineering

Engineering Turbulence Modelling and Experiments 6

Engineering Turbulence Modelling and Experiments 6

Engineering Turbulence Modelling and Experiments 6 137 W. Rodi (Editor) © 2005 Elsevier Ltd. All rights reserved. BEHAVIOUR OF TURBULENCE MODELS NEAR A TURBULENT/NON-TURBULENT INTERFACE REVISITED P. Ferrey" and B. Aupoix" *ONERA/DMAE ...

Author: Wolfgang Rodi

Publisher: Elsevier

ISBN: 0080530958

Category: Science

Page: 1012

View: 275

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.
Categories: Science

Engineering Turbulence Modelling and Experiments 5

Engineering Turbulence Modelling and Experiments 5

This series of symposia provides a forum for presenting and discussing new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems.

Author: W. Rodi

Publisher: Elsevier Science

ISBN: 0080441149

Category: Science

Page: 1028

View: 234

Turbulence is one of the key issues in tackling engineering flow problems. As powerful computers and accurate numerical methods are now available for solving the flow equations, and since engineering applications nearly always involve turbulence effects, the reliability of CFD analysis depends increasingly on the performance of the turbulence models. This series of symposia provides a forum for presenting and discussing new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. The papers in this set of proceedings were presented at the 5th International Symposium on Engineering Turbulence Modelling and Measurements in September 2002. They look at a variety of areas, including: Turbulence modelling; Direct and large-eddy simulations; Applications of turbulence models; Experimental studies; Transition; Turbulence control; Aerodynamic flow; Aero-acoustics; Turbomachinery flows; Heat transfer; Combustion systems; Two-phase flows. These papers are preceded by a section containing 6 invited papers covering various aspects of turbulence modelling and simulation as well as their practical application, combustion modelling and particle-image velocimetry.
Categories: Science

Engineering Turbulence Modelling and Experiments 2

Engineering Turbulence Modelling and Experiments   2

Proceedings of the Second International Symposium on Engineering Turbulence Modelling and Measurements, Florence, Italy, ... 6. REFERENCES I.V.Derevich and L.I.Zaichik, Fluid Dynamics, 5 (1988) 96. L.I.Zaichik and A.A.Vinberg, Proc.

Author: F. Martelli

Publisher: Elsevier

ISBN: 9781483298559

Category: Science

Page: 1001

View: 926

Today understanding turbulence is one of the key issues in tackling flow problems in engineering. Powerful computers and numerical methods are now available for solving flow equations, but the simulation of turbulence effects, which are nearly always important in practice, are still at an early stage of development. Successful simulation of turbulence requires the understanding of the complex physical phenomena involved and suitable models for describing the turbulence momentum, heat and mass transfer. The 89 papers, including 5 invited papers, in this volume present and discuss new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. The high standard of the contributions on the developing and testing of turbulent models attests to the world-wide interest this domain is currently attracting from researchers.
Categories: Science

Engineering Turbulence Modelling and Experiments 3

Engineering Turbulence Modelling and Experiments   3

The measured time-averaged axial velocity component at six stations (z/R = 0.414 to 2.081) are shown in Figure 3 along with the predictions of both the high-Reynolds number turbulence model of launder and Spalding [6] and low-Reynolds ...

Author: G. Bergeles

Publisher: Newnes

ISBN: 9780444600134

Category: Technology & Engineering

Page: 942

View: 843

This book presents and discussses new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. At present, turbulence is one of the key issues in tackling engineering flow problems. Powerful computers and numerical methods are now available for solving the flow equations, but the simulation of turbulence effects which are nearly always important in practice, is still in an unsatisfactory state and introduces considerable uncertainities in the accuracy of CFD calculations. These and other aspects of turbulence modelling and measurements are dealt with in detail by experts in the field. The resulting book is an up-to-date review of the most recent research in this exciting area.
Categories: Technology & Engineering

Engineering Turbulence Modelling and Experiments 4

Engineering Turbulence Modelling and Experiments   4

When compared to the results of a classical (k - 6) model (fig. 5) it immediately appears that the turbulent kinetic energy level is higher with the spectral model, especially in the valve jet region. Figure 6 presents the turbulent ...

Author: D. Laurence

Publisher: Elsevier

ISBN: 0080530982

Category: Science

Page: 972

View: 854

These proceedings contain the papers presented at the 4th International Symposium on Engineering Turbulence Modelling and Measurements held at Ajaccio, Corsica, France from 24-26 May 1999. It follows three previous conferences on the topic of engineering turbulence modelling and measurements. The purpose of this series of symposia is to provide a forum for presenting and discussing new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. Turbulence is still one of the key issues in tackling engineering flow problems. As powerful computers and accurate numerical methods are now available for solving the flow equations, and since engineering applications nearly always involve turbulence effects, the reliability of CFD analysis depends more and more on the performance of the turbulence models. 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.
Categories: Science

Engineering Turbulence Modelling and Experiments 5

Engineering Turbulence Modelling and Experiments 5

shear-layer thickness (R/6) or the core of the vortex ring (R/6) becomes important factor to determine the instability mode for azimuthal direction of the round jet. Batchelor and Gill (1962) predicted from the linear stability theory ...

Author: W. Rodi

Publisher: Elsevier

ISBN: 9780080530949

Category: Science

Page: 1028

View: 948

Turbulence is one of the key issues in tackling engineering flow problems. As powerful computers and accurate numerical methods are now available for solving the flow equations, and since engineering applications nearly always involve turbulence effects, the reliability of CFD analysis depends increasingly on the performance of the turbulence models. This series of symposia provides a forum for presenting and discussing new developments in the area of turbulence modelling and measurements, with particular emphasis on engineering-related problems. The papers in this set of proceedings were presented at the 5th International Symposium on Engineering Turbulence Modelling and Measurements in September 2002. They look at a variety of areas, including: Turbulence modelling; Direct and large-eddy simulations; Applications of turbulence models; Experimental studies; Transition; Turbulence control; Aerodynamic flow; Aero-acoustics; Turbomachinery flows; Heat transfer; Combustion systems; Two-phase flows. These papers are preceded by a section containing 6 invited papers covering various aspects of turbulence modelling and simulation as well as their practical application, combustion modelling and particle-image velocimetry.
Categories: Science

IUTAM Symposium on Unsteady Separated Flows and their Control

IUTAM Symposium on Unsteady Separated Flows and their Control

Prediction of the spreading mechanisms of 3D turbulent wall jets with explicit Reynolds-stress closures. In W. Rodi and N. Fueyo, editors, Engineering Turbulence Modelling and Experiments 5, pages 127–145. Elsevier, Amsterdam, 2002. 6.

Author: Marianna Braza

Publisher: Springer Science & Business Media

ISBN: 1402098987

Category: Science

Page: 586

View: 258

This Volume is the Proceedings of the IUTAM Symposium on Unsteady Separated Flows and Their Control held in Corfu, Greece, 18–22 June 2007. This was the second IUTAM Symposium on this subject, following the symposium in Toulouse, in April 2002. The Symposium consisted of single plenary sessions with invited lectures, - lected oral presentations, discussions on special topics and posters. The complete set of papers was provided to all participants at the meeting. The thematic sessions of this Symposium are presented in the following: Experimental techniques for the unsteady ow separation Theoretical aspects and analytical approaches of ow separation Instability and transition Compressibility effects related to unsteady separation Statistical and hybrid turbulence modelling for unsteady separated ows Direct and Large-Eddy Simulation of unsteady separated ows Theoretical/industrial aspects of unsteady separated ow control This IUTAM Symposium concerned an important domain of Theoretical and Applied Mechanics nowadays. It focused on the problem of ow separation and of its control. It achieved a uni ed approach regrouping the knowledge provided from theoretical, experimental, numerical simulation and modelling aspects for unsteady separated ows (incompressible and compressible regimes) and included ef cient control devices to achieve attenuation or suppression of separation. The subject - eas covered important themes in the domain of fundamental research as well as in the domain of applications.
Categories: Science

Engineering Turbulence Modelling and Experiments

Engineering Turbulence Modelling and Experiments

Proceedings of the International Symposium on Engineering Turbulence Modelling and Measurements, Held September 24-28, ... With the exception of the 6° diffuser, where separation has not yet started, experiments (Figure 4a) as well as ...

Author: Wolfgang Rodi

Publisher: Elsevier Publishing Company

ISBN: UOM:39015019476616

Category: Fluid dynamic measurements

Page: 958

View: 747

This book brings together the experience of specialists on the modelling and measurements of turbulent flow. This multidisciplinary meeting was held to bring together workers in a wide range of engineering activities, who employ common analytical and experimental methods in their estimation of structural response to turbulence. The results of the meeting are of world-wide interest, and will help to stimulate future research and analysis in this field.
Categories: Fluid dynamic measurements

Modeling and Simulation of Turbulent Flows

Modeling and Simulation of Turbulent Flows

[KEN 05] KENJERES S., HANJALIC K., “LES, T-RANS and Hybrid simulations of thermal convection at high Ra numbers”, Engineering Turbulence Modeling and Experiments 6, Proc. ERCOFTAC Int. Symp. on Engineering Turbulence Modeling and ...

Author: Roland Schiestel

Publisher: John Wiley & Sons

ISBN: 9780470393468

Category: Science

Page: 768

View: 192

This title provides the fundamental bases for developing turbulence models on rational grounds. The main different methods of approach are considered, ranging from statistical modelling at various degrees of complexity to numerical simulations of turbulence. Each of these various methods has its own specific performances and limitations, which appear to be complementary rather than competitive. After a discussion of the basic concepts, mathematical tools and methods for closure, the book considers second order closure models. Emphasis is placed upon this approach because it embodies potentials for clarifying numerous problems in turbulent shear flows. Simpler, generally older models are then presented as simplified versions of the more general second order models. The influence of extra physical parameters is also considered. Finally, the book concludes by examining large Eddy numerical simulations methods. Given the book’s comprehensive coverage, those involved in the theoretical or practical study of turbulence problems in fluids will find this a useful and informative read.
Categories: Science