Abstract: We use statistical models of turbulence with ?eddy damping? (EDQNM) in order to study the problem of predictability of freely evolving two- and three-dimensional isotropic turbulent flows. The application of statistical ...

Abstract: A spectral equation derived from two-point closures applied to three-dimensional isotropic turbulence is studied from the subgrid-scale modeling point of view, with a cutoff wavenumber kc located in the inertial range of ...

Abstract: It is well established that at low Rossby and Froude numbers modes possessing potential vorticity behave differently from gavity-inertial wave modes. Wave energy cascades relatively more efficiently downscale to the ...

Abstract: A method of parameterization of the energy and enstropy transfers involving subgrid scales is proposed in order to predict the time evolution of the energy spectrum at larger scales. The method is based on the strong ...

Abstract: Baroclinic instabilities of jet flows are investigated by means of numerical simulations of the nonhydrostatic Boussinesq equations on the f plane. Frontal small scales are accurately described thanks to precise numerical ...