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Quality and Reliability of Large-Eddy Simulations

Ercoftac Series Band 12

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  • Quality and Reliability of Large-Eddy Simulations

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Beschreibung

Computational resources have developed to the level that, for the first time, it is becoming possible to apply large-eddy simulation (LES) to turbulent flow problems of realistic complexity. Many examples can be found in technology and in a variety of natural flows. This puts issues related to assessing, assuring, and predicting the quality of LES into the spotlight. Several LES studies have been published in the past, demonstrating a high level of accuracy with which turbulent flow predictions can be attained, without having to resort to the excessive requirements on computational resources imposed by direct numerical simulations. However, the setup and use of turbulent flow simulations requires a profound knowledge of fluid mechanics, numerical techniques, and the application under consideration. The susceptibility of large-eddy simulations to errors in modelling, in numerics, and in the treatment of boundary conditions, can be quite large due to nonlinear accumulation of different contributions over time, leading to an intricate and unpredictable situation. A full understanding of the interacting error dynamics in large-eddy simulations is still lacking. To ensure the reliability of large-eddy simulations for a wide range of industrial users, the development of clear standards for the evaluation, prediction, and control of simulation errors in LES is summoned. The workshop on Quality and Reliability of Large-Eddy Simulations, held October 22-24, 2007 in Leuven, Belgium (QLES2007), provided one of the first platforms specifically addressing these aspects of LES. TOC:From the contents
Part I Numerical and mathematical analysis of subgrid-scale-model and discretization errors. Part II Computational error-assessment. Part III Modelling and error-assessment of near-wall flows. Part IV Error assessment in complex applications.

Produktdetails

Format PDF i
Herausgeber Johan Meyers, Bernard Geurts, Pierre Sagaut
Kopierschutz Ja i
Family Sharing Nein i
Text-to-Speech Ja i
Erscheinungsdatum 26.06.2008
Sprache Englisch
EAN 9781402085789
Verlag Springer
Dateigröße 19725 KB

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