A natural decomposition of viscous dissipation in DG methods for turbulent incompressible flows
arXiv:1811.127691 citations
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Provides a theoretical tool for researchers using DG methods to assess dissipation in turbulent flows, though incremental in nature.
The authors propose a decomposition of viscous dissipation in DG methods for incompressible flows to distinguish physical from numerical dissipation, enabling better analysis of turbulent simulations.
In this note we aim at a characterisation of the discretisation of viscous dissipation which allows to distinguish `physical' (also frequently called `molecular', or `resolved') from `numerical' dissipation in DG-discretised incompressible flow simulations.