Application of High-order Analysis Code Solving Five-equation Two-phase Flow Problem Based on MOOSE

Based on the multiphysics coupling framework MOOSE, the modular analysis code ZEBRA was developed using the fiveequation twophase flow model. The highorder time and space discrete formats were implemented in twophase flow and heat transfer problems. The vertical tube subcooled boiling experiment data carried out by Bartolomei were used to validate ZEBRA. The predicted results by ZEBRA were compared with experimental values in different wall heat flux, mass flux and pressure conditions. The results show that the predicted results of the fiveequation model in ZEBRA are in well agreement with the experimental values. The prediction results of the onset of boiling and void fraction are reasonable, indicating that the twophase flow problems can be preliminarily solved by ZEBRA.