Abstract
In this study, numerical analysis using VOF(Volume of Fluid) method on gas-liquid two phase flow accompanied with phase change has been conducted. The thermal-recovery method is used for estimating mass transfer by phase change. Film boiling problem and Nusselt's film theory was selected and calculated as verification problem. As a result, it is found that the numerical results are good agreement with theory or empirical equation in terms of film growth rate or heat transfer coefficient. Finally, the developed method is applied to the condensation heat transfer between cooled tube and saturated vapor.
