CFD-simulation of non-stationary heat transfer of water and nanofluid in saturated state

The complex process of convective heat exchange between a solid body and a liquid during its boiling is significantly complicated by the presence of vapor phase with simultaneous processes of evaporation and condensation. In addition, the presence of steam bubbles that move upward due to the forces of Archimedes leads to an increase in heat dissipation from the heated body. These phenomena cause the new boiling conditions that occur quite quickly and almost are not calculated. Computer modeling of the processes was executed to reproduce the obtained scientific data and to make them more clear. New scientific data were obtained that would not have been possible without CFD simulation. The nanofluid was modeled by modifying the physical properties of distilled water, calculated using the empirical formulas. The ANSYS Fluent software package was used for this investigation.