Abstract
The jet breakup phenomena of the molten cores during a severe accident are affected by some complicated structures, such as control rod guide tubes, instrument guide tubes, and core support plate, in the lower plenum of the boiling water reactors (BWRs). A multi-phase computational fluid dynamics approach combined with experiments is considered to be the best way to estimate the jet breakup phenomena in the BWR lower plenum, and a numerical analysis method has been developed based on the interface tracking method code TPFIT (Two-Phase Flow simulation code with Interface Tracking). The analysis method developed was applied to single-/multi-channel experiments for verification and validation in this study. Furthermore, results from the numerical analysis were compared to the experimental results obtained using the multi-phase flow visualization technique using a high-speed camera and the particle image velocimetry method. As a consequence, it is found that the simulation method developed in this study can qualitatively simulate the jet breakup phenomena in the complicated structure.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
