title: Broadband trailing edge noise from a sharp-edged strut.
abstract: This paper presents experimental data concerning the flow and noise generated by a sharp-edged flat plate at low-to-moderate Reynolds number (Reynolds number based on chord of 2.0 × 10(5) to 5.0 × 10(5)). The data are used to evaluate a variety of semi-empirical trailing edge noise prediction methods. All were found to under-predict noise at lower frequencies. Examination of the velocity spectra in the near wake reveals that there are energetic velocity fluctuations at low frequency about the trailing edge. A semi-empirical model of the surface pressure spectrum is derived for predicting the trailing edge noise at low-to-moderate Reynolds number.
authors.affiliation: School of Mechanical Engineering, The University of Adelaide, Adelaide, South Australia 5005, Australia. danielle.moreau@adelaide.edu.au
authors.forename: Danielle J
authors.initials: DJ
authors.lastname: Moreau
authors.forename: Laura A
authors.initials: LA
authors.lastname: Brooks
authors.forename: Con J
authors.initials: CJ
authors.lastname: Doolan
mesh_terms: D000401:Aircraft; D004867:Equipment Design; D008962:Models, Theoretical; D009622:Noise; D009624:Noise, Transportation; D013018:Sound Spectrography; D014919:Wind