Turbulence in a box
Subgrid closure for the Sabra shell-model cascade, from scratch in JAX. A one-parameter eddy viscosity beats a learned MLP that is twice as good offline - what sets the spectrum is the mean energy drain, not the pointwise fit.
Learning the unresolved-scale closure of two-scale Lorenz '96 - the RANS/URANS averaging operation. Offline skill is a weak proxy for online skill.
Symbolic regression of ROM closures in convection-dominated flows.
Probabilistic closure model for coarse-grid Navier-Stokes: CNN + deep-kernel SVGP with calibrated uncertainty, deployed online in a MATLAB FV solver (MIT MSEAS)
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