Tong Liu | The University of New South Wales (original) (raw)
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A computational tool has been developed for predicting noise radiated from wind turbines. The mai... more A computational tool has been developed for predicting noise radiated from wind turbines. The main mechanisms of noise associated with wind turbines have been identified and assembled in the prediction model. Those mechanisms are: turbulent inflow noise and airfoil self-noise, both of them aerodynamic generated noise sources. Self-noise comprises Laminar Boundary Layer-Vortex Shedding, Turbulent Boundary Layer-Trailing Edge, Trailing Edge Bluntness-Vortex Shedding and Tip Vortex Formation noises. Aerodynamic load effects on wind turbine blades and the theory behind it (Blade Element Momentum method-BEM) is also introduced in this work. The developed program is based on a semi-empirical model. Noise sources for the inflow noise has been incorporated in the existent model, which allowed the comparison with the case of a real wind turbine.
A computational tool has been developed for predicting noise radiated from wind turbines. The mai... more A computational tool has been developed for predicting noise radiated from wind turbines. The main mechanisms of noise associated with wind turbines have been identified and assembled in the prediction model. Those mechanisms are: turbulent inflow noise and airfoil self-noise, both of them aerodynamic generated noise sources. Self-noise comprises Laminar Boundary Layer-Vortex Shedding, Turbulent Boundary Layer-Trailing Edge, Trailing Edge Bluntness-Vortex Shedding and Tip Vortex Formation noises. Aerodynamic load effects on wind turbine blades and the theory behind it (Blade Element Momentum method-BEM) is also introduced in this work. The developed program is based on a semi-empirical model. Noise sources for the inflow noise has been incorporated in the existent model, which allowed the comparison with the case of a real wind turbine.