风能手册(英文版)内容多

一本英语的风能手册，很详细 目录如下 Acknowledgements xv List of symbols xvii 1 Introduction 1 1.1 Historical Development 1 1.2 Modern Wind Turbines 6 1.3 Scope of the Book 7 References 8 Bibliography 9 2 The Wind Resource 11 2.1 The Nature of the Wind 11 2.2 Geographical Variation in theWind Resource 12 2.3 Long-termWind-speed Variations 13 2.4 Annual and Seasonal Variations 14 2.5 Synoptic and Diurnal Variations 16 2.6 Turbulence 17 2.6.1 The nature of turbulence 17 2.6.2 The boundary layer 18 2.6.3 Turbulence intensity 21 2.6.4 Turbulence spectra 22 2.6.5 Length scales and other parameters 23 2.6.6 Cross-spectra and coherence functions 26 2.7 Gust Wind Speeds 29 2.8 Extreme Wind Speeds 30 2.8.1 Extreme winds in standards 31 2.9 Wind-speed Prediction and Forecasting 33 2.9.1 Statistical methods 33 2.9.2 Meteorological methods 34 2.10 Turbulence in Wakes and Wind Farms 35 2.11 Turbulence in Complex Terrain 37 References 38 3 Aerodynamics of Horizontal-axis Wind Turbines 41 3.1 Introduction 41 3.2 The Actuator Disc Concept 42 3.2.1 Momentum theory 43 3.2.2 Power coefficient 44 3.2.3 The Betz limit 45 3.2.4 The thrust coefficient 46 3.3 Rotor Disc Theory 46 3.3.1 Wake rotation 47 3.3.2 Angular momentum theory 47 3.3.3 Maximum power 49 3.3.4 Wake structure 50 3.4 Vortex Cylinder Model of the Actuator Disc 51 3.4.1 Introduction 51 3.4.2 Vortex cylinder theory 52 3.4.3 Relationship between bound circulation and the induced velocity 53 3.4.4 Root vortex 54 3.4.5 Torque and power 55 3.4.6 Axial flow field 56 3.4.7 Tangential flow field 57 3.4.8 Radial flow field 58 3.4.9 Conclusions 59 3.5 Rotor Blade Theory 59 3.5.1 Introduction 59 3.5.2 Blade element theory 60 3.5.3 The blade element – momentum (BEM) theory 61 3.5.4 Determination of rotor torque and power 64 3.6 Breakdown of the Momentum Theory 65 3.6.1 Free-stream/wake mixing 65 3.6.2 Modification of rotor thrust caused by flow separation 66 3.6.3 Empirical determination of thrust coefficient 67 3.7 Blade Geometry 68 3.7.1 Introduction