Building-block-flow model for large-eddy simulation
ORAL
Abstract
A unified subgrid-scale+wall model for large-eddy simulation is proposed by devising the flow as a collection of building blocks flows. The information from the building blocks enables the prediction of the eddy viscosity. The building blocks are simple canonical flows based on the turbulent Poiseuille-Couette configuration at different flow regimes. The model is constructed to predict wall-attached turbulence, adverse pressure gradient effects, separation, statistically unsteady turbulence, and laminar flow. The approach is particularly designed for coarse grids by accounting for numerical errors.
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Publication: "Self-critical machine-learning wall-modeled LES for external aerodynamics", A. Lozano-Duran & J. Bae. Center for Turbulence Research, Annual Research Briefs 2020.
Presenters
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Adrian Lozano-Duran
MIT, Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Massachusetts Institute of Technology
Authors
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Adrian Lozano-Duran
MIT, Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Massachusetts Institute of Technology
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Yuenong Ling
Massachusetts Institute of Technology MI, Massachusetts Institute of Technology
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Gonzalo Arranz
Massachusetts Institute of Technology
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Emily Williams
Massachusetts Institute of Technology, Massachusetts Institute of Technology MIT