Development and verification & validation of theoretical model for critical heat flux under flow oscillation conditions

A mechanistic critical heat flux (CHF) model was developed to predict the transient CHF under inlet flow oscillation conditions. The model was proposed based on the sub-layer dryout model and homogeneous two-phase transient flow model. FORTRAN language was used to write the calculation code, which was then verified and validated using experimental data from both steady inlet flow and oscillatory inlet flow conditions. The verification and validation results show that the proposed model has good capability to predict the transient CHF under inlet flow oscillation conditions within a small error range.