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physics.flu-dyn2025
Minimum-dissipation model and symmetry-preserving discretization for scalar transport in a turbulent flow
Jing Sun, F. Xavier Trias, Roel Verstappen
This work extends the minimum-dissipation model of large-eddy simulation and symmetry-preserving discretization to account for active or passive scalar transport and complex physic…
physics.flu-dyn2025
Artificial and Eddy Viscosity in Large Eddy Simulation Part 2: Turbulence Models
Jing Sun, Roel Verstappen
This is the second part to our companion paper. The novel method to quantify artificial dissipation proposed in Part 1 is further applied in turbulent channel flow at $\mathrm{Re_τ…
physics.flu-dyn2025
Artificial and Eddy Viscosity in Large Eddy Simulation Part 1: Temporal and Spatial Schemes
Jing Sun, Roel Verstappen
We propose a novel method to quantify artificial dissipation in large eddy simulation. Here, artificial dissipation is defined as the residual of the discrete turbulent kinetic ene…