Aerodynamics of Wind Turbines"Aerodynamics of Wind Turbines is the established essential text for the fundamental solutions to efficient wind turbine design. Now in its second edition it has been entirely updated and substantially extended to reflect advances in technology research into rotor aerodynamics and the structural response of the wind turbine structure. Topics covered include increasing mass flow through the turbine performance at low and high wind speeds assessment of the extreme conditions under which the turbine will perform and the theory for calculating the lifetime of the turbine. The classical Blade Element Momentum method is also covered as are eigenmodes and the dynamic behaviour of a turbine. The new material includes a description of the effects of the dynamics and how this can be modelled in an 'aeroelastic code' which is widely used in the design and verification of modern wind turbines. Further the description of how to calculate the vibration of the whole construction as well as the time varying loads has been substantially updated."--Publisher's website. |
Contents
Chapter 1 General Introduction to Wind Turbines | 1 |
Chapter 2 2D Aerodynamics | 7 |
Chapter 3 3D Aerodynamics | 18 |
Chapter 4 1D Momentum Theory for an Ideal Wind Turbine | 27 |
Chapter 5 Shrouded Rotors | 41 |
Chapter 6 The Classical Blade Element Momentum Method | 45 |
Chapter 7 ControlRegulation and Safety Systems | 63 |
Chapter 8 Optimization | 78 |
Chapter 10 Introduction to Loads and Structures | 103 |
Chapter 11 Beam Theory for the Wind Turbine Blade | 107 |
Chapter 12 Dynamic Structural Model of a Wind Turbine | 125 |
Chapter 13 Sources of Loads on a Wind Turbine | 139 |
Chapter 14 Wind Simulation | 147 |
Chapter 15 Fatigue | 157 |
Chapter 16 Final Remarks | 162 |
Appendices | 167 |
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Common terms and phrases
acceleration adverse pressure gradient aeroelastic aerofoil data airfoil angle of attack annual energy production axial induction factor axial velocity beam bending moment bending moments Betz limit boundary layer C₁ calculated computed constant control volume coordinate system damping denotes drag coefficients dynamic stall edgewise equation example flapwise eigenmode frequency high wind speed induced velocity inertia leading edge lift coefficient loads computed method momentum theory normal number of blades optimum pitch angle pitch regulated wind power coefficient power curve power output Prandtl's tip loss pressure gradient principal axis radius regulated wind turbine relative velocity rotational speed rotor plane S-N curve shear shown in Figure stall regulated wind stiffness streamlines structural tangential thrust coefficient tip loss factor tip speed ratio torque tower trailing edge turbulent vector vortex system vortices Vrel wake Wind Energy wind speed wind turbine blade wind turbine construction wing zero