Abstract
This paper is concerned with nonequilibrium condensation of methanol vapor on the plane end wall of a shock tube behind a reflected shock wave. The thickness of a liquid film formed on the endwall is measured by an optical method and it is compared with numerical simulations based on Gaussian-BGK Boltzmann equation. The condensation coefficient is determined in a wide range of thermodynamic nonequilibrium conditions of the vapor at the vapor-liquid interface. It is found that the condensation coefficient is decrease with the increase of the pressure ratio that is defined as the ratio of a vapor pressure to a saturated vapor pressure.
