# Computation and Comparison of Efficient Turbulence Models for Aeronautics — European Research Project ETMA

- Editors

Part of the Notes on Numerical Fluid Mechanics (NNFM) book series (NONUFM, volume 5)

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- Editors

Part of the Notes on Numerical Fluid Mechanics (NNFM) book series (NONUFM, volume 5)

The computation of complex turbulent flows by statistical modelling has already a long history. The most popular two-equation models today were introduced in the early sev enties. However these models have been generally tested in rather academic cases. The develope ment of computers has led to more and more acurate numerical methods. The interactions betwe~n numerical and modelling techniques are generally not well mastered. Moreover, computation of real life cases, including 3D effects, complex geometries and pressure gra dients based on two-equation models with low-Reynolds treatment at the proximity of walls are not really of common use. A large number of models has been proposed; this is perhaps the sign that none of them is really satisfactory, and then the assessment of their generality is not an easy task: it requires a lot of understanding of the physics and a lot of work for testing the large number of relevant cases in order to assess their limits of validity which is a condition for an improved confidence in engineering applications. This is probably why workshops and working groups are frequent and the ETMA consor tium has choosen to build a state of the art in theoretical and numerical statistical turbu lence modelling for real life computations by taking some marks with respect to previous workshops such as the Stanford meetings (1980,1981); some problems are kept or updated by new experiments, some problems are discarded, some new problems are introduced; the focus is kept on flows with 2D geometries.

Navier-Stokes equation Numerik Reynolds-averaged Navier-Stokes Strömung Strömungsmechanik aeronautics computer flow flows fluid mechanics mixing numerics shock wave turbulence turbulent flow

- DOI https://doi.org/10.1007/978-3-322-89859-3
- Copyright Information Vieweg+Teubner Verlag | Springer Fachmedien Wiesbaden GmbH, Wiesbaden 1998
- Publisher Name Vieweg+Teubner Verlag, Wiesbaden
- eBook Packages Springer Book Archive
- Print ISBN 978-3-322-89861-6
- Online ISBN 978-3-322-89859-3
- Series Print ISSN 0179-9614
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