Aeroacoustics of obstructions in turbulent boundary layers
Last updated on April 6, 2022
The aerodynamic noise generated by a two-dimensional large obstacle in a turbulent boundary layer. The obstacles have different shape and height emerged in the turbulent boundary layer of the flat plate. The spectra of turbulence and sound in a wide velocity range of 20-50m/s was tested. Scaling laws of the turbulence and acoustic results are conducted, and the noise generation mechanisms are analysed.
Reference
Shivam Sundeep, et al., An experimental study of aerodynamic noise from large obstructions in turbulent boundary layer flows, Physics of Fluids, vol. 34, 025121, 2022.