Robust deep learning for emulating turbulent viscosities

  title={Robust deep learning for emulating turbulent viscosities},
  author={Aakash Patil and Jonathan Viquerat and Aur{\'e}lien Larcher and George El Haber and Elie Hachem},
  journal={Physics of Fluids},
From the simplest models to complex deep neural networks, modeling turbulence with machine learning techniques still offers multiple challenges. In this context, the present contribution proposes a robust strategy using patch-based training to learn turbulent viscosity from flow velocities, and demonstrates its efficient use on the Spalart-Allmaras turbulence model. Training datasets are generated for flow past twodimensional obstacles at high Reynolds numbers and used to train an auto-encoder… Expand
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