Gravitational convection in gas system Ar – N2

Abstract

A study has been made of the "diffusion - gravitational convection" transition boundary in an argon - nitrogen binary system at different pressures and a constant temperature gradient. Research relative influence two gradients (concentration and temperature) to the density gradient. In a binary system with an unstable stratification of the density observe two mixing regimes - diffusion and convective mass transfer. It has been shown that in the case of isothermal and non-isothermal mixing, the diffusion process is stalled at one and the same pressure. The convective mass transfer becomes less intensive in the presence of a temperature gradient.