Open AccessAnalytical solution to the problem of diffusion of the light component of the binary gas mixture in a plane channel
Author(s) -
В. Н. Попов,
Ivan Popov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2056/1/012004
Subject(s) - component (thermodynamics) , diffusion , plane (geometry) , channel (broadcasting) , kinetic energy , flow (mathematics) , boltzmann equation , binary number , mechanics , chemistry , open channel flow , molecular diffusion , thermodynamics , physics , geometry , classical mechanics , mathematics , arithmetic , electrical engineering , engineering , metric (unit) , operations management , economics
Within the framework of the kinetic approach, an analytical solution to the problem of diffusion of the light component of a binary mixture in a flat channel with infinite parallel walls is constructed. It is assumed that the mass of light component molecules and their concentration is much less than the mass of molecules and the concentration of heavy components. The flow rate of the heavy component is assumed to be zero. The change in the state of a light gas component is described on the basis of the BGK (Bhatnagar, Gross, Kruk) model of the Boltzmann kinetic equation. The diffuse reflection model is used as a boundary condition on the channel walls. The mass velocity profile of the light gas component is constructed. The flow rate of the light gas component per unit channel width is calculated. A comparison with similar results presented in open sources was done.