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- W2053621923 abstract "A numerical simulation method on noise prediction, which incorporates aerodynamics and sound wave equations based on acoustic analogy, is presented in the paper. Near-field unsteady aerodynamic characteristic can be obtain by large eddy simulation (LES), and far-field propagation of sound waves and spatial sound-field can be obtain by solving the time-domain integral equations of Ffowcs Williams and Hawings (FW-H). Based on the method, a numerical simulation was done on a two-dimension cylinder and a three-dimension flat plate with blunt leading edge. The agreement of numerical results with experiment data validated the Feasibility of the method. The results also indicate that LES can describe vortex generation and shedding in the flow-fields, and FW-H formulation, which has taken time-lag between sound emission and reception times into account, can simulate time-effect of sound propagation toward far-fields." @default.
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- W2053621923 date "2013-10-01" @default.
- W2053621923 modified "2023-09-27" @default.
- W2053621923 title "An Investigation on Numerical Simulation Method for Aero-Acoustics Based on Acoustics Analogy" @default.
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- W2053621923 doi "https://doi.org/10.4028/www.scientific.net/amm.444-445.462" @default.
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