The flow of liquid in a channel with vapor in the presence of longitudinal heat flux

The flow of liquid in a channel filled with vapor is analyzed. Nonequilibrium effects in proximity to interfaces are included. The general and special conditions of compatibility are formulated. The latter conditions are defined on the basis of solutions of the Boltzmann kinetic equation. A closed system of appropriate equations is derived. An algorithm of solution of this system is suggested, and a series of calculations are performed. It follows from the analysis of the calculation results that all substances may be divided into groups depending on the thermal properties. For each group, the main reasons for the flow of liquid in the channel are defined, and recommendations are given for control of this process.