925 Determination of Condensation Coefficient for Methanol : Numerical Analysis Based on Molecular Gas Dynamics for Shock Tube Experiment

Abstract

We perform the determination of the condensation coefficient for methanol by combining a numerical analysis based on the molecular gas dynamics and shock tube experiment. In the numerical analysis, the boundary condition for the Boltzmann equation at the vapor liquid interface is rewritten using the net mass flux obtained from the shock tube experiment. Thereby, the condensation coefficient is determined by the vapor-liquid system. The result shows that the value of the condensation coefficient for methanol ranges from 0.7 to 0.9, and it is close to that of the evaporation coefficient evaluated by the recent molecular dynamics simulation.