Approximation and numerical method for three-dimensional Navier-Stokes equations solving by using of orthogonal grids

Numerical method for three-dimensional Navier–Stokes equations using Boussinesque approximation for cartesian, cylindrical and spherical coordinates and for thetmal–electroconductive liquid in constant external field is described. Numerical results for three-dimensional problems are considered in next cases: the flow in a rectangular cavity and the flow in a cylindrical vessel modelling hydrodynamic processes for Czhochralski crystal growth.