Home – Home – Jornals – Thermophysics and Aeromechanics 2001 number 4

The distribution of axisymmetric disturbances of the velocity field in a convective column from a source of the momentum moment and/or heat is investigated. A system of differential equations for the amplitude functions of the axial and azimuth velocity, momentum moment, the pressure and density differences is obtained on the basis of the model of turbulence being non-equilibrium with respect to the momentum moments, and the boundary layer and Boussinesq approximations under the assumption on the Gauss distribution of flow parameters in the radial direction. The system of equations is closed within the framework of the Taylor's hypothesis on the relation between the external radial flow and the axial one in the column. The solution was found numerically. The regimes of the azimuth rotation within the column are revealed, which are caused by the redistribution of the momentum moment between the mean flow and the motion of vortices at an intermediate scale with respect to the column size and the scale of pulsations having a zero mean value of the velocity and moment. P. 499-509