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Conference papers
The CATHARE code condensation modelling confronted to the TOPFLOW-PTS steady-state experiments
Abstract : During a Loss Of Coolant Accident (LOCA) in a Pressurized Water Reactor (PWR), direct
contact condensation (DCC) on a stratified flow may take place in the cold leg when the
Emergency Core Cooling (ECC) system injects cold water. The condensation modeling of the
system thermal-hydraulic code CATHARE-2 is compared to the experimental results from the
new TOPFLOW-PTS tests, tests dedicated to condensation and mixing phenomena in cold leg.
This is an opportunity to test and improve the scaling capabilities of the current model of the
code.
The reference CATHARE condensation model was based on COSI data analysis and was then
validated against various experimental data including LSTF and UPTF. This wide validation
matrix covers a volume scaling factor from 1/100 to 1, includes both Large Break and
Intermediate Break LOCA conditions and is now extended to TOPFLOW-PTS.
The present work revisits the physical mechanisms involved at the ECC injection and presents an
improved condensation model with better scaling capabilities.
Cited literature [3 references]
https://hal-cea.archives-ouvertes.fr/cea-02509168
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Submitted on : Monday, March 16, 2020 - 3:10:46 PM
Last modification on : Tuesday, April 28, 2020 - 11:28:18 AM
Long-term archiving on: : Wednesday, June 17, 2020 - 2:15:49 PM
Contributor : Amplexor Amplexor Connect in order to contact the contributor
Submitted on : Monday, March 16, 2020 - 3:10:46 PM
Last modification on : Tuesday, April 28, 2020 - 11:28:18 AM
Long-term archiving on: : Wednesday, June 17, 2020 - 2:15:49 PM
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