At realistic LES filter ratios on channel flow, an octahedral-equivariant nonlocal CNN is more accurate, parameter-efficient, and data-efficient than an augmented non-equivariant CNN, while pointwise models fail to beat the Clark baseline.
Theoretical and Computational Fluid Dynamics , year =
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Rotational equivariance and locality in data-driven subgrid-scale closures
At realistic LES filter ratios on channel flow, an octahedral-equivariant nonlocal CNN is more accurate, parameter-efficient, and data-efficient than an augmented non-equivariant CNN, while pointwise models fail to beat the Clark baseline.