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- W3161793829 abstract "A two-dimensional (2D) meshless model based on the vortex method is developed to predict the aerodynamic noise of a noncompact open cavity, which calculates the flow and sound field results simultaneously. The evolution of the shear layer over the cavity mouth is described through discrete vortices, and key parameters including strength, position, and velocity of the vortices are obtained. Meanwhile, the vortices are employed as the sound source to simulate the sound generation by using vortex sound theory, together with the time-domain boundary element method (TDBEM) to account for the sound scattering effect of the rigid wall. The predicted results coincide reasonably well with the previous experimental data, and the computational cost is remarkably reduced compared with pure numerical methods. Moreover, the influence of the vortex convection velocity in the streamwise direction on the oscillation frequency and the mode jump characteristics are discussed in detail, which helps to improve the basic understanding of cavity noise." @default.
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- W3161793829 date "2021-07-01" @default.
- W3161793829 modified "2023-09-27" @default.
- W3161793829 title "Simultaneous Solution for Vortex and Sound of Cavity Oscillation Based on a Meshless Model" @default.
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- W3161793829 doi "https://doi.org/10.1061/(asce)as.1943-5525.0001282" @default.
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