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- W4304958862 abstract "Fourier neural operator (FNO) model is developed for large eddy simulation (LES) of three-dimensional (3D) turbulence. Velocity fields of isotropic turbulence generated by direct numerical simulation (DNS) are used for training the FNO model to predict the filtered velocity field at a given time. The input of the FNO model is the filtered velocity fields at the previous several time-nodes with large time lag. In the a posteriori study of LES, the FNO model performs better than the dynamic Smagorinsky model (DSM) and the dynamic mixed model (DMM) in the prediction of the velocity spectrum, probability density functions (PDFs) of vorticity and velocity increments, and the instantaneous flow structures. Moreover, the proposed model can significantly reduce the computational cost, and can be well generalized to LES of turbulence at higher Taylor-Reynolds numbers." @default.
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- W4304958862 date "2022-11-01" @default.
- W4304958862 modified "2023-10-01" @default.
- W4304958862 title "Fourier neural operator approach to large eddy simulation of three-dimensional turbulence" @default.
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- W4304958862 doi "https://doi.org/10.1016/j.taml.2022.100389" @default.
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