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Figure 1. Comparison of the Gaussian profiles for the DG, FD, and CD schemes
  
From:
Not All Numerical Methods are Born Equal for LES
Posted Mon December 17, 2018 @06:35PM
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News Prof. ZJ Wang has posted an article comparing numerical methods for Large Eddy Simulation.

Among the insights shared: "The ideal numerical method for LES should have very low dissipation AND dispersion errors over the resolvable range of wave numbers, but dissipative for non-resolvable high wave numbers. In this way, the simulation will resolve a wide turbulent spectrum, while damping out the non-resolvable small eddies to prevent energy pile-up, which can drive the simulation divergent."

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