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E-book
Author Leschziner, Michael, author.

Title Statistical turbulence modelling for fluid dynamics, demystified : an introductory text for graduate engineering students / Michael Leschziner (Imperial College London, UK)
Published New Jersey : Imperial College Press, 2015

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Description 1 online resource
Contents 880-01 Foreword: What is this Book About, and for Whom?; 1. Statistical Viewpoint of Turbulence -- Motivation and Rationale; 2. What Makes Turbulence Tick?; 2.1 Eddies, vortices and their scales; 2.2 A semblance of order and organisation; 2.3 Forcing turbulence -- a first look; 2.4 Summary and lessons; 3. Reynolds-Averaging; 3.1 Decomposition and time-integration; 3.2 The Reynolds-averaged Navier-Stokes (RANS) equations for steady flow; 3.3 The Reynolds-averaged Navier-Stokes equations for unsteady flow(URANS); 3.4 Spatial averaging and statistical homogeneity; 3.5 Summary and lessons
880-01/(S 7.1 Conceptual foundation7.2 Quantification of the eddy viscosity -- a first attempt; 7.3 The turbulent-velocity scale; 7.4 The turbulent length scale; 7.5 Length-scale transport; 7.6 Summary and lessons; 8. One-Equation Eddy-Viscosity Models; 8.1 Introductory comments; 8.2 Turbulence-energy-based models; 8.2.1 The Wolfshtein (1969) model; 8.2.2 The Norris-Reynolds (1975) model; 8.3 Eddy-viscosity-transport models; 8.3.1 The Spalart-Allmaras (1992) model; 8.3.2 Models combining the k- and ε-equations; 8.4 Summary and lessons; 9. Two-Equation Models; 9.1 Options for length-scale surrogates
4. Fundamentals of Stress/Strain Interactions4.1 A rational framework for describing the Reynolds stresses; 4.2 The case of simple shear; 4.3 Manifestations of stress anisotropy; 4.4 Summary and lessons; 5. Fundamentals of Near-Wall Interaction; 5.1 Turbulence in the viscous sublayer; 5.2 Turbulence processes in the 'buffer layer'; 5.3 The velocity distribution in the near-wall region; 5.4 Summary and lessons; 6. Fundamentals of Scalar-Flux/Scalar-Gradient Interactions; 6.1 The exact equations for the turbulent fluxes; 6.2 Some key interactions; 6.3 Summary and lessons; 7. The Eddy Viscosity
880-02 10.3 Eddy-viscosity-based wall functions10.4 Numerical wall functions; 10.5 More general wall functions; 10.6 Wall functions for heat transfer; 10.7 Summary and lessons; 11. Defects of Linear Eddy-Viscosity Models, Their Sources and (Imperfect) Corrections; 11.1 The need for corrections; 11.2 Realisability; 11.3 Curvature; 11.4 Swirl; 11.5 Rotation; 11.6 Body forces -- buoyancy; 11.7 Length-scale corrections; 11.8 Summary and lessons; 12. Reynolds-Stress-Transport Modelling; 12.1 Rationale and motivation; 12.2 The exact Reynolds-stress equations; 12.3 Closure -- some basic rules
880-02/(S 9.2 The basic k -- ε model9.3 Low-Reynolds-number k -- ε- modelextensions; 9.3.1 The Lam-Bremhorst (1981), Chien (1982) and Launder-Sharma (1974) models; 9.3.2 The Lien-Leschziner model (1994, 1996); 9.4 Alternative k -- φ models; 9.4.1 The basic k -- ω model; 9.4.2 Low-Reynolds-number k -- ω-model extensions; 9.4.3 Hybrid k -- ω/k -- ε modelling -- the SST model; 9.5 Reductions of two-equation models to one-equation forms; 9.6 Summary and lessons; 10. Wall Functions for Linear Eddy-Viscosity Models; 10.1 The purpose of 'wall functions'; 10.2 Log-law-based wall functions
Bibliography Includes bibliographical references and index
Notes Print version record
Subject Turbulence -- Mathematical models
Unsteady flow (Fluid dynamics) -- Mathematical models
Fluid dynamics -- Mathematical models
Eddies.
TECHNOLOGY & ENGINEERING -- Hydraulics.
Eddies
Fluid dynamics -- Mathematical models
Turbulence -- Mathematical models
Unsteady flow (Fluid dynamics) -- Mathematical models
Form Electronic book
ISBN 9781783266623
1783266627
9781783266630
1783266635