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DESider – A European Effort on Hybrid RANS-LES Modelling

Results of the European-Union Funded Project, 2004 - 2007

  • Conference proceedings
  • © 2009

Overview

Authors:
  1. Werner Haase

    1. Höhenkirchener Str. 19D, D-85662 Hohenbrunn , Germany

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  2. Marianna Braza

    1. Institut de Mécanique des Fluides de Toulouse, UMR CNRS/INPT No 5502 , Toulouse, France

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  3. Alistair Revell

    1. School of Mechanical Aerospace and Civil Engineering, The University of Manchester , Manchester, UK

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  • Presents the most up-to-date research on Hybrid RANS-LES modelling in aeronautics

Part of the book series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design (NNFM, volume 103)

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Table of contents (6 papers)

  1. Front Matter

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  2. I The DESider Project

    • Werner Haase, Marianna Braza, Alistair Revell
    Pages 1-18

  3. II Presentation of Modelling Approaches

    • Werner Haase, Marianna Braza, Alistair Revell
    Pages 19-67

  4. III DESider Measurements

    • Werner Haase, Marianna Braza, Alistair Revell
    Pages 69-103

  5. IV Applications - Test Cases

    • Werner Haase, Marianna Braza, Alistair Revell
    Pages 105-308

  6. V Technical, Partner-Related Reports – Methods, Models and Applications Performed

    • Werner Haase, Marianna Braza, Alistair Revell
    Pages 309-431

  7. VI Summary of Experience with Hybrid RANS-LES Methods and a Look Ahead

    • Werner Haase, Marianna Braza, Alistair Revell
    Pages 433-436

  8. Back Matter

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Keywords

About this book

Preface “In aircraft design, efficiency is determined by the ability to accurately and rel- bly predict the occurrence of, and to model the development of, turbulent flows. Hence, the main objective in industrial computational fluid dynamics (CFD) is to increase the capabilities for an improved predictive accuracy for both complex flows and complex geometries”. This text part taken from Haase et al (2006), - scribing the results of the DESider predecessor project “FLOMANIA” is still - and will be in future valid. With an ever-increasing demand for faster, more reliable and cleaner aircraft, flight envelopes are necessarily shifted into areas of the flow regimes exhibiting highly unsteady and, for military aircraft, unstable flow behaviour. This undou- edly poses major new challenges in CFD; generally stated as an increased pred- tive accuracy whist retaining “affordable” computation times. Together with highly resolved meshes employing millions of nodes, numerical methods must have the inherent capability to predict unsteady flows. Although at present, (U)RANS methods are likely to remain as the workhorses in industry, the DESider project focussed on the development and combination of these approaches with LES methods in order to “bridge” the gap between the much more expensive (due to high Reynolds numbers in flight), but more accurate (full) LES.

Authors and Affiliations

  • Höhenkirchener Str. 19D, D-85662 Hohenbrunn , Germany

    Werner Haase

  • Institut de Mécanique des Fluides de Toulouse, UMR CNRS/INPT No 5502 , Toulouse, France

    Marianna Braza

  • School of Mechanical Aerospace and Civil Engineering, The University of Manchester , Manchester, UK

    Alistair Revell

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