Sensitivity analysis for subcooled flow boiling using Eulerian CFD approach

analysis. The model developed in this work, CTU-PSI model, is expected to be applied to boiling in PWRs. topic of investigated since applications, but maner of trends have quantities 3D mea-measurement and rates are calculated. The Kensselaer Polytechnic Institute (RPI) mecha-nistic heat flux partitioning model proposed by Kurul and Podowski (1990) is widely used as a wall boiling modet. It is applicable to saturated and subcooled boiling; however, accurate predictions of the heat transfer coefficient and Departure from Nucleate Boiling (DNB) are still difficult since the RPI model consists of submodels which employ empirical correlations and have model limitations. Moreover, the vapor temperature is fixed at the saturation temperature in this model, which is not true in real boiling flow. This problem can be solved in the extended non-equilibrium subcooled boiling model, which takes into