The Navier-Stokes-Voigt (NSV) model of viscoelastic incompressible fluid has been
recently proposed as a regularization of the 3D Navier-Stokes equations for the purpose of direct
numerical simulations. In this work we investigate its statistical properties by employing phenomeno-
logical heuristic arguments, in combination with Sabra shell model simulations of the analogue of
the NSV model. For large values of the regularizing parameter, compared to the Kolmogorov length
scale, simulations exhibit multiscaling inertial range, and the dissipation range displaying low inter-
mittency. These facts provide evidence that the NSV regularization may reduce the stiffness of direct
numerical simulations of turbulent flows, with a small impact on the energy containing scales.
Publié le : 2010-03-15
Classification:
Navier-Stokes-Voigt equations,
Navier-Stokes-Voight equations,
Navier-Stokes equations,
regularization of the Navier-Stokes equations,
turbulence models,
viscoelastic models,
shell models,
dynamic models,
35Q30,
35Q35,
76F20,
76F55
@article{1266935023,
author = {Levant, Boris and Ramos, Fabio and Titi, Edriss S.},
title = {On the statistical properties of the 3D incompressible Navier-Stokes-Voigt model},
journal = {Commun. Math. Sci.},
volume = {8},
number = {1},
year = {2010},
pages = { 277-293},
language = {en},
url = {http://dml.mathdoc.fr/item/1266935023}
}
Levant, Boris; Ramos, Fabio; Titi, Edriss S. On the statistical properties of the 3D incompressible Navier-Stokes-Voigt model. Commun. Math. Sci., Tome 8 (2010) no. 1, pp. 277-293. http://gdmltest.u-ga.fr/item/1266935023/