Direct Numerical Simulation of Latent Heat Effects During Condensation in Turbulent Convective Channel Flow

Kurzfassung

The influence of latent heat released in phase transitions on the flow structures of turbulent convective channel flow of fluid mixtures is investigated using direct numerical simulations. In addition to the usual flow variables, temperature and concentration fields are used to control the phase transition via the local saturation levels. To account fort he intrinsically non-cyclic nature oft he phase transition while ensuring correct turbulence statistics, a coupled simulation approach is employed, where the velocity field of a periodic channel geometry is used to obtain inlet boundary conditions for the primary simulation domain