Numerical comparison of nonlinear subgridscale models via adaptive mesh refinement

In this paper, we provide a method of evaluating the efficacy of nonlinear subgridscale models for use in the large eddy simulation of incompressible viscous flow problems. We compare subgridscale ''artificial'' viscosity models using a posteriori error estimation and adaptive mesh refinement. Specifically, we compare @a-Laplacian based subgridscale models and discuss the benefits and limitations of different values of @a for some standard benchmark problems for the Navier-Stokes equations.

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