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- W2334043275 abstract "The recently developed low dispersion finite volume schemes are applied in a numerical simulation of the aeroacoustic noise created by the shedding of vortices from a circular cylinder. This analysis, based on first principles, involves the numerical solution of the laminar, compressible NavierStokes equations in two dimensions. Around the cylinder, the flow and acoustic fields are coupled naturally through the governing equations. No secondary simulations or integral methods necessitating a foreknowledge of the flow field are required to generate the acoustic field. Aerodynamic and/or spectral results are presented to validate the flow/acoustic solver at Reynolds numbers 40 and 200. The agreement between the numerical solutions and the archival data is excellent. For aeroacoustic analysis, directivity profiles have been calculated for mean-squared perturbation pressure throughout the flow field. These profiles are presented, analyzed based on the physical characteristics of the noise source and then compared to classical results. Power spectral densities are presented for locations directly above the cylinder and in the cylinder wake. The numerical solution clearly portrays the correct physics for vortex shedding noise at Reynolds number 200." @default.
- W2334043275 created "2016-06-24" @default.
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- W2334043275 date "1998-01-12" @default.
- W2334043275 modified "2023-09-28" @default.
- W2334043275 title "Low dispersion finite volume schemes in the resolution of vortex shedding noise" @default.
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- W2334043275 doi "https://doi.org/10.2514/6.1998-366" @default.
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