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Symmetry-preserving regularization of turbulent channel flow
[chapter]
Direct and Large-Eddy Simulation VI
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We propose to regularize the convective term in the Navier-Stokes equations in such a manner that the symmetries that correspond to the invariance of the energy, the enstrophy (in 2D) and helicity are preserved. The underlying idea is to restrain the convective production of smaller and smaller scales of motion by means of vortex stretching in an unconditional stable manner, meaning that the solution can not blow up (in the energy-norm). The numerical algorithm used to solve the governing
doi:10.1007/978-1-4020-5152-2_16
fatcat:bnsqn7g2x5ft7gjx5tmaw2mzl4