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This book covers the major problems of turbulence and turbulent processes including physical phenomena their modeling and their simulationAfter a general introduction in Chapter 1 illustrating many aspects dealing with turbulent flows averaged euations and kinetic energy budgets are provided in Chapter 2 The concept of turbulent viscosity as a closure of the Reynolds stress is also introduced Wall bounded flows are presented in Chapter 3 and aspects specific to boundary layers and channel or pipe flows are also pointed out Free shear flows namely free jets and wakes are considered in Chapter 4 Chapter 5 deals with vortex dynamics Homogeneous turbulence isotropy and dynamics of isotropic turbulence are presented in Chapters 6 and 7 Turbulence is then described both in the physical space and in the wave number space Time dependent numerical simulations are presented in Chapter 8 where an introduction to large eddy simulation is offered The last three chapters of the book summarize remarkable digital techniues current and experimental Many results are presented in a practical way based on both experiments and numerical simulationsThe book is written for a advanced engineering students as well as postgraduate engineers and researchers For students it contains the essential results as well as details and demonstrations whose oral transmission is often tedious At aadvanced level the text provides numerous references which allow readers to find uickly further study regarding their work and to acuire a deeper knowledge on topics of interestThis book covers the major problems of turbulence and turbulent processes including physical phenomena their modeling and their simulationAfter a general introduction in Chapter 1 illustrating many aspects dealing with turbulent flows averaged euations and kinetic energy budgets are provided in Chapter 2 The concept of turbulent viscosity as a closure of the Reynolds stress is also introduced Wall bounded flows are presented in Chapter 3 and aspects specific to boundary layers and channel or pipe flows are also pointed out Free shear flows namely free jets and wakes are considered in Chapter 4 Chapter 5 deals with vortex dynamics Homogeneous turbulence isotropy and dynamics of isotropic turbulence are presented in Chapters 6 and 7 Turbulence is then described both in the physical space and in the wave number space Time dependent numerical simulations are presented in Chapter 8 where an introduction to large eddy simulation is offered The last three chapters of the book summarize remarkable digital techniues current and experimental Many results are presented in a practical way based on both experiments and numerical simulationsThe book is written for a advanced engineering students as well as postgraduate engineers and researchers For students it contains the essential results as well as details and demonstrations whose oral transmission is often tedious At aadvanced level the text provides numerous references which allow readers to find uickly further study regarding their work and to acuire a deeper knowledge on topics of interestThis book covers the major problems of turbulence and turbulent processes including physical phenomena their modeling and their simulationAfter a general introduction in Chapter 1 illustrating many aspects dealing with turbulent flows averaged euations and kinetic energy budgets are provided in Chapter 2 The concept of turbulent viscosity as a closure of the Reynolds stress is also introduced Wall bounded flows are presented in Chapter 3 and aspects specific to boundary layers and channel or pipe flows are also pointed out Free shear flows namely free jets and wakes are considered in Chapter 4 Chapter 5 deals with vortex dynamics Homogeneous turbulence isotropy and dynamics of isotropic turbulence are presented in Chapters 6 and 7 Turbulence is then described both in the physical space and in the wave number space Time dependent numerical simulations are presented in Chapter 8 where an introduction to large eddy simulation is offered The last three chapters of the book summarize remarkable digital techniues current and experimental Many results are presented in a practical way based on both experiments and numerical simulationsThe book is written for a advanced engineering students as well as postgraduate engineers and researchers For students it contains the essential results as well as details and demonstrations whose oral transmission is often tedious At aadvanced level the text provides numerous references which allow readers to find uickly further study regarding their work and to acuire a deeper knowledge on topics of interest