Shielding of rotor noise by plates and wings
Fluid Dynamics
2022-05-16 v2
Abstract
A method of noise reduction proposed for the next generation of aircraft is to shield noise from the propulsion system, by positioning the noise source over a wing or another surface. In this paper, an approximate analysis is developed for the acoustic field far from a circular source placed near the edge of a semi-infinite plate, a model problem for shielding of noise by a wing and for scattering by a trailing edge. The approximation is developed for a source of small radius and is found to be accurate when compared to full numerical evaluation of the field.
Keywords
Cite
@article{arxiv.2202.13936,
title = {Shielding of rotor noise by plates and wings},
author = {Michael Carley},
journal= {arXiv preprint arXiv:2202.13936},
year = {2022}
}