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Wind Turbine Noise
Over the last five years an enormous number of wind turbines have been installed in Europe, bringing wind energy into public awareness. However, its...
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Self-organizing Maps for Pareto Optimization of Airfoils
This work introduces a new recombination and a new mutation operator for an accelerated evolutionary algorithm in the context of Pareto optimization....
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Noise Propagation
Chapters 4 and 5 describe noise generation of wind turbines and its prediction, and Chapter 7 deals with noise and flow measurement. This chapter...
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Noise Mechanisms of Wind Turbines
This chapter describes the principal noise mechanisms related to wind turbines. After a general discussion of all wind turbine noise sources —...
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Introduction to Aeroacoustics
One aim of this book is to give suggestions how aerodynamic noise from wind turbines can be reduced in order to increase the public’s acceptance of...
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Introduction
In 1991, the world-wide electricity production amounted to 12030·109 kWh, being 20450·109 kWh in 2010 as projected by the IEA [180]. The resources of...
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Future Work
This chapter contains a summary of ideas and recommendations for future work in the field of wind turbine noise. It is neither complete nor meant as...
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Noise Prediction
This chapter deals with the prediction of the noise produced by a given turbine under prescribed operating conditions. Beginning with simple rules of...
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Noise Reduction
Chapter 5 has described the approaches for predicting the noise emission due to the different noise mechanisms introduced in Chapter 4. It became...
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Noise and its Effects
Sound can be generated by a multitude of mechanisms. The sound emitted by a vibrating surface, e.g. a bell or a loudspeaker, is well-known to most...
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Measurement of Noise and Flow Field
Only recently, wind tunnels have been accepted as facilities for investigating wind turbine noise, although many American airframe noise studies...