Double Diffusion in Ar-N2 Binary Gas System at the Constant Value of Temperature Gradient |
| V.D. Selezneva, V.N. Kosov b, I.V. Poyarkov c, O.V. Fedorenkoc and M.T. Beketaeva c
aB. El'tsin Ural State Technical University, Mira, 19, Yekaterinburg 620002, Russia bAbay Kazakh National Pedagogical University, Dostyk, 13, Almaty 050100, Kazakhstan cDepartment of Physics, Al-Farabi Kazakh National University, Al-Farabi, 71, Almaty 050038, Kazakhstan |
| Received: June 20, 2011; In final form: November 11, 2012 |
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| An experimental study of the "diffusion-gravitational convection" transition boundary in an Ar-N2 binary system at different pressures and a constant temperature gradient is performed. It is shown that the diffusion is replaced by the gravitational convection at a pressure p ≈ 0.5 MPa. In terms of the stability theory, a perturbation boundary line is determined, dividing the Rayleigh numbers plane into the regions of the diffusion and the convective mass transfer. The experimental data agree well with the theoretical values. |
DOI: 10.12693/APhysPolA.123.62 PACS numbers: 51.10.+y, 42.25.+f |