Towards Identifying Contribution of Wake Turbulence to Inflow Noise from Wind Turbines

Bharat Raj Agrawal, Aaron Rosenberg, Anupam Sharma, Matthew J. Churchfield
2015 E3S Web of Conferences  
Downstream turbines in a wind farm often operate under the influence of wakes from upstream turbines. Aerodynamic losses and aeromechanical issues (stochastic loads) associated with such wake-turbine interactions have been investigated before. However, the role such interactions play in the generation of aerodynamic noise has not been looked into. This paper presents a two-step approach for predicting noise due to wake-turbine interaction. The first step involves aerodynamic simulation of a
more » ... simulation of a wind farm using the Simulator fOr Wind Farm Applications (SOWFA) software. Time accurate data and turbulence statistics in the turbine wakes are obtained from this simulation result just ahead of the downstream wind turbines. The second step uses the turbulence information with aeroacoustic models to predict radiated noise in the far field. Results from the solutions of two simplified model problems corresponding to these two steps are presented in this paper.
doi:10.1051/e3sconf/20150501002 fatcat:7guoxbsnajeq5al73jsu2ol2am