Subgrid model


A simple subgrid eddy-viscosity model has been proposed. It has the advantage that it automatically reduces in laminar, transitional and near-wall regions, and it is therefore an attractive alternative for the classic Smagorinsky model. Examples of implementation: a Fortran module and a user-defined function for Fluent.

An eddy-viscosity subgrid-scale model for turbulent shear flow: algebraic theory and applications. A.W. Vreman, Phys. Fluids 16, 3670-3681 (2004). PDF

Application of this subgrid model in large-eddy simulation of a T-mixer. The movie shows the contours of a passive scalar field on the wall.


Application of this subgrid model in large-eddy simulation of Sandia Flame D. The temperature field in a plane.

movie of turbulent flame