Book contents
- Frontmatter
- Contents
- Contributors
- Prologue
- Part I Paradigms and Tools
- Part II Challenges
- 9 Transition to Turbulence
- 10 Wall-Bounded Turbulence
- 11 Scale-by-Scale Nonequilibrium in Turbulent Flows
- 12 Coarse-Graining in Multiphase Flows: From Micro to Meso to Macroscale for Euler–Lagrange and Euler–Euler Simulations
- 13 Coarse Graining for Thermal Flows
- 14 High-Order Simulations of Supersonic Combustion
- 15 Coarse-Graining Supersonic Combustion
- 16 Transition and Multiphysics in Inertial Confinement Fusion Capsules
- 17 Firestorms, Fallout, and Atmospheric Turbulence Induced by a Nuclear Detonation
- Epilogue
- Abbreviations
- Index
- References
10 - Wall-Bounded Turbulence
from Part II - Challenges
Published online by Cambridge University Press: 31 January 2025
- Frontmatter
- Contents
- Contributors
- Prologue
- Part I Paradigms and Tools
- Part II Challenges
- 9 Transition to Turbulence
- 10 Wall-Bounded Turbulence
- 11 Scale-by-Scale Nonequilibrium in Turbulent Flows
- 12 Coarse-Graining in Multiphase Flows: From Micro to Meso to Macroscale for Euler–Lagrange and Euler–Euler Simulations
- 13 Coarse Graining for Thermal Flows
- 14 High-Order Simulations of Supersonic Combustion
- 15 Coarse-Graining Supersonic Combustion
- 16 Transition and Multiphysics in Inertial Confinement Fusion Capsules
- 17 Firestorms, Fallout, and Atmospheric Turbulence Induced by a Nuclear Detonation
- Epilogue
- Abbreviations
- Index
- References
Summary
We explore the treatment of near-wall turbulence in coarse-grained representations of wall-bounded turbulence. Such representations are complicated by the fact that at high Reynolds number the near-wall effects occur in an asymptotically thin layer. Because of this, many near-wall models are posed as effective boundary conditions, essentially eliminating the thin wall layer that is too thin to resolve. This is commonly referred to as wall-modeled large eddy simulation, and the viability of this approach is supported by the weakness of the interaction between the near-wall turbulence and that further away. Such models are generally informed by known characteristics of near-wall turbulence, such as the log-layer in the mean velocity and the so-called law-of-the-wall. In this chapter, we consider such coarse-grained near-wall models and the approximations implicit in their formulation from the perspective of thin-layer asymptotics.
- Type
- Chapter
- Information
- Coarse Graining TurbulenceModeling and Data-Driven Approaches and their Applications, pp. 306 - 332Publisher: Cambridge University PressPrint publication year: 2025