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- W2887385047 abstract "A turbulent round jet at the Reynolds number of 7,290 is simulated by direct numerical simulation to study jet noise source and its propagation. A large domain of 60 diameters in the axial direction, 30 diameters in the radial direction, and full 360 degrees is chosen to minimize the effect of boundary conditions. The spatial statistics of the simulated flow and the peak amplitude of acoustic radiation at 45-degree angle agree well with existing literature, confirming the quality of the data. Motivated by the Ffowcs-Williams and Hawkings equation, acoustic spectra at three representative locations of the potential core, the shear layer, and the ambient indicate that the fluctuation magnitudes are highest in the shear layer, followed by the potential core and the ambient. The turbulent characteristics are isotropic in the potential core and the shear layer, and the ambient exhibits an intermittent behaviour." @default.
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- W2887385047 date "2017-08-01" @default.
- W2887385047 modified "2023-09-23" @default.
- W2887385047 title "High Fidelity Simulation of Turbulent Jet and Identification of Acoustic Sources" @default.
- W2887385047 doi "https://doi.org/10.19416/j.cnki.1674-9804.2017.03.001" @default.
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