Kemal Hanjalic, Brian Launder

Modelling Turbulence in Engineering and the Environment (eBook, PDF)

Rational Alternative Routes to Closure

• Format: PDF

Produktbeschreibung

Modelling transport and mixing by turbulence in complex flows are huge challenges for computational fluid dynamics (CFD). This highly readable book introduces readers to modelling levels that respect the physical complexity of turbulent flows. It examines the hierarchy of Reynolds-averaged Navier-Stokes (RANS) closures in various situations ranging from fundamental flows to three-dimensional industrial and environmental applications. The general second-moment closure is simplified to linear eddy-viscosity models, demonstrating how to assess the applicability of simpler schemes and the conditions under which they give satisfactory predictions. The principal changes for the second edition reflect the impact of computing power: a new chapter devoted to unsteady RANS and another on how large-eddy simulation, LES, and RANS strategies can be effectively combined for particular applications. This book will remain the standard for those in industry and academia seeking expert guidance on the modelling options available, and for graduate students in physics, applied mathematics and engineering entering the world of turbulent flow CFD.

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Produktdetails

• Verlag: Cambridge University Press
• Erscheinungstermin: 24. November 2022
• Englisch
• ISBN-13: 9781108883351
• Artikelnr.: 70911499

Autorenporträt

Kemal Hanjali¿ is Professor Emeritus at Delft University of Technology and an international fellow of the UK's Royal Academy of Engineering and the Russian Academy of Science. His innovative and sustained contributions to  turbulence-model development, including heat transfer and environmental flows have been recognised by the Max Planck and Nusselt-Reynolds Research Prizes.

Inhaltsangabe

Principal nomenclature
1. Introduction
2. The exact equations
3. Characterization of stress and flux dynamics: elements required for modelling
4. Approaches to closure
5. Modelling the scale-determining equations
6. Modelling in the immediate wall vicinity and at low Re_t
7. Simplified schemes
8. Wall functions
9. RANS modelling of unsteady flows (URANS)
10. Hybrid RANS-LES (HRL)^1 Alistair J. Revell
References
Index.