Evaporation in mixture of vapor and gas mixture

The evaporation problem in vapor and gas mixture is investigated by the methods of molecular-kinetic theory and fluid dynamics. Solution results are obtained for the case when investigation domain length is several thousands mean free paths of molecules. In this statement two types of evaporation problem solutions are obtained. In the first type gas is completely pushed up by vapor from the region near the evaporation interface surface. In this, “shelf” (straight step) in dependence of vapor density on coordinate takes place. In the second type such “shelf” is not formatted. Transition from one type solution to another is found.