Global kinetic energy conservation with unstructured meshes
Conserving kinetic energy is essential in Large Eddy Simulation (LES) in order that subgrid scale modelling (SGS) is not hidden by numerical errors. High-order schemes, which are not available for unstructured grids, are sufficient but not a necessary condition for energy conservation. The problem addressed here is directly ensuring energy conservation through a careful discretization of the momentum and mass equations, and it is shown that this can be achieved with a low-order scheme for unstructured grids. Copyright (C) 2002 John Wiley Sons, Ltd.
unstructured mesh large eddy simulation finite volume-finite element method global energy conservation unsteady navier-stokes