Experimental study of aerofoil noise sources in the spatial and temporal domains Seminar

Event details

Sound generated by aerofoil is a widely encountered problem in many engineering applications and often poses a major challenge for aircraft and wind turbine manufacturers. The challenges arise from the highly complex nature of the aerofoil self-noise production mechanisms that are known to be governed by the regime of the boundary layer. Experimentally, it is still difficult and quite expensive to study simultaneously the spatial and time-resolved development of the convecting turbulence structures or boundary layer instabilities. This short presentation will discuss the use of a relatively low-cost flow diagnostic method that enables the spatio-temporal reconstruction of the ensemble-averaged flow field and wavelet analysis of the far field to study the trailing edge noise generation mechanisms.