Mathematical simulation of transient heat transfer in a two-phase closed cylindrical thermosiphon in conditions of convective heat exchange with an environment

Numerical simulation of mass transfer, momentum, and energy transport regimes in a two-phase closed cylindrical thermosiphon in conditions of convective heat exchange with an environment has been carried out. The mathematical model has been formulated in dimensionless variables such as stream function, vorticity, and temperature in cylindrical coordinates. Distributions of local thermo-hydrodynamic parameters reflecting influence of an environment have been obtained. Stages of energy transport from the evaporation zone to the condensation zone of the thermosyphon have been determined.