Chapter 1

Introduction

Chapter Outline Head

11.1 Introductory Remarks

1.2 Turbulence – Miscellaneous Remarks

1.3 The Ubiquity of Turbulence

1.4 The Continuum Hypothesis

1.5 Measures of Turbulence – Intensity

1.6 Measures of Turbulence – Scale

1.7 Measures of Turbulence – The Energy Spectrum

1.8 Measures of Turbulence – Intermittency

1.9 The Diffusive Nature of Turbulence

1.10 Turbulence Simulation

Problems

References

1.1 Introductory Remarks

Turbulence in viscous flows is described by the Navier–Stokes equations, perfected by Stokes in 1845, and now soluble by Direct Numerical Simulation (DNS). However, computing capacity restricts solutions to simple boundary conditions and moderate Reynolds numbers and calculations for complex geometries are ...

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