On one exact solution of an evaporative convection problem with the Dirichlet boundary conditions

Characteristics of steady-state convective flows of a liquid and a co-current gas flux under the conditions of inhomogeneous evaporation of the diffusive type in a flat horizontal channel are studied. A partially-invariant exact solution of equations of the thermosolutal convection is used to describe the flows within the framework of the Oberbeck – Boussinesq approximation. It is derived as the solution of the evaporative convection problem with the Dirichlet boundary conditions on the outer channel walls. The influence of the external thermal load on the structure of the velocity and temperature fields, evaporation mass flow rate and vapor content in the gas layer was investigated in the HFE-7100 – nitrogen system.