Effects of the Hydro Anisotropy and the Magnetic Field on the Dynamic Thermo-Bi-Diffusive Flow in a Horizontal Cavity Confining a Porous Medium Saturated by a Binary Fluid

We analyze analytically the effects of anisotropy in permeability and that of a transverse magnetic field on thermal convection in a porous medium saturated with a binary fluid and confined in a horizontal cavity. The porous medium, of great extension, is subjected to various conditions at the thermal and solutal boundaries. The axes of the permeability tensor are oriented obliquely with respect to the gravitational field. Based on a scale analysis, the velocity, temperature, and heat and mass transfer rate fields were determined. These results were validated by the study of borderline cases which are: pure porous media and pure fluid media discussed in the literature. It emerges from this study that the anisotropy parameters influence the convective flow. The application of a transverse magnetic field significantly reduces the speed of the flow and thereby affects the temperature field and the rate of heat and mass transfer.

Distribution of the charged particles of a gas-discharge laser plasma in a transverse magnetic field. I. Calculation model

The paper considers a physical and mathematical model describing the influence of an external transverse magnetic field on the distribution of charged particles in a positive column of a gas discharge. This model is developed in relation to the weakly ionized plasma of a gas-discharge laser. In this case, the plasma flow is considered as an analog of a liquid consisting of two practically independent components – electrons and ions.