{ "id": "2202.13936", "version": "v1", "published": "2022-02-28T16:41:42.000Z", "updated": "2022-02-28T16:41:42.000Z", "title": "Sound from rotors near a trailing edge", "authors": [ "Michael Carley" ], "categories": [ "physics.flu-dyn" ], "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.", "revisions": [ { "version": "v1", "updated": "2022-02-28T16:41:42.000Z" } ], "analyses": { "keywords": [ "trailing edge", "acoustic field far", "propulsion system", "noise source", "full numerical evaluation" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }