simulation of boiling in a vertical channel using ensemble average model

simulation of turbulence boiling, generation of vapour and predication of its behaviour are still subject to debate in the two-phase flow area and they receive a high level of worldwide attention. in this study, a new arrangement of the three dimensional governing equations for turbulence two-phase flow with heat and mass transfer are derived by using ensemble averaging two-fluid model and utilizing the latest approved constitutive equations. then, the governing equations are simplified for bulk boiling in a vertical channel. a computer program with simple algorithm is written for the simplified equations, and the results are compared with available experimental data and a boiling water reactor in operating condition.