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physics.comp-ph2018★ 1 cited
p-Multigrid matrix-free discontinuous Galerkin solution strategies for the under-resolved simulation of incompressible turbulent flows
Matteo Franciolini, Lorenzo Botti, Alessandro Colombo +1
In recent years several research efforts focused on the development of high-order discontinuous Galerkin (dG) methods for scale resolving simulations of turbulent flows. Neverthele…
physics.comp-ph2017★ 32 cited
h-multigrid agglomeration based solution strategies for discontinuous Galerkin discretizations of incompressible flow problems
Lorenzo Botti, Alessandro Colombo, Francesco Bassi
In this work we exploit agglomeration based -multigrid preconditioners to speed-up the iterative solution of discontinuous Galerkin discretizations of the Stokes and Navier-Stok…