Open AccessRayleigh–Benard convection in a gas-vapor medium at the temperature close to the critical temperature
Author(s) -
I. B. Palymskiy,
P. A. Fomin,
YouRong Li,
Chun-Mei Wu
Publication year - 2019
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 - 10.1088/1742-6596/1382/1/012200
Subject(s) - limiting , convection , instability , thermodynamics , mechanics , rayleigh–bénard convection , rayleigh number , natural convection , physics , materials science , chemistry , mechanical engineering , engineering
In this paper, we propose a new physico-mathematical model for the Rayleigh–Benard convection in a gas-vapor mixture of oxygen and cyclohexane, for which the temperature dependence of density has a maximum. Linear stability analysis was performed; two limiting cases where the inversion parameter tends to its limiting values are studied analytically. Formulas are obtained for the growth increment and decay, the neutral curve, and the boundary of the instability region in the wave plane.