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- W2334310049 abstract "Stochastic modelling techniques are currently used to deal with various problems in turbulence. These methods are explored in this article with as objective the computation of the solution of aeroacoustic noise problems. The principle may be described as follows. The mean flow field is first deduced from a RANS calculation associated with a turbulence closure scheme like the k — e model. Next, a space-time turbulent field is synthetized stochastically, providing the local turbulent fluctuations and the associated noise sources. The radiated sound field is then calculated numerically. The present article is structured around the three following points. The aeroacoustic calculation is presented in the first part. The stochastic model of turbulence is described in the second part. The last section is devoted to computational methods and to numerical results related to noise generation by diaphragms placed in ducted flows. Three-dimensional numerical results are compared with experimental data in terms of acoustic levels. Results of calculations are in good agreement with predictions." @default.
- W2334310049 created "2016-06-24" @default.
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- W2334310049 date "1998-06-02" @default.
- W2334310049 modified "2023-09-27" @default.
- W2334310049 title "Computation of noise generation by turbulence in internal flows" @default.
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- W2334310049 doi "https://doi.org/10.2514/6.1998-2332" @default.
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