Simulation of the Hadley circulation seasonal variation using a general atmosphere circulation model of medium complexity

In this paper, the Hadley circulation is simulated with the use of a model of medium complexity, its response to the atmosphere temperature changes is estimated. The stream function is used to estimate the tropical circulation changes. It is shown that with a temperature meridional gradient decrease, weakening of the...

borovko.pdf295.4 KB

The subgrid modeling for Maxwell's equations with multiscale isotropic random conductivity and permittivity

The effective coefficients in the Maxwell's equations are calculated for a multiscale isotropic medium using a subgrid modeling approach. The correlated fields of conductivity and permittivity are mathematically represented by a Kolmogorov multiplicative continuous cascades with a lognormal probability distribution. The wavelength is assumed to be large as compared with...

kurochkina.pdf136.62 KB

A semi-Lagrangian scheme for convection equations sing the finite element method

This paper considers a semi-Lagrangian scheme (SLS) for solving convection equations. The transport equations, as written in the Lagrangian form at each time step, are approximated on the basis of a weak form using a finite element method representation with various coordinate functions: delta functions, piecewise-linear functions, and various interpolation...

kuzin1.pdf305.53 KB

A numerical model of density currents in estuaries of the siberian rivers

A numerical model for studying the dynamic mixing of the sea and river water in the estuarial area is proposed. Computations are based on the two-dimensional longitudinal vertical stratified fluid mechanics equations and the equation of transport of salt. The model focuses on the reproduction of local density currents at...

shlychkov.pdf241.35 KB