Conference Proceedings Paper
WCOBRA/TRAC-TF2 Simulation of ROSA-IV/LSTF Natural Circulation Test ST-NC-02
NURETH-14 - 2011 September 25-30
Nikolay Petkov (Westinghouse Electric Company)
Katsuhiro Ohkawa (Westinghouse Electric Company)
Cesare Frepoli (Westinghouse Electric Company)
The paper presents WCOBRA/TRAC-TF2 simulation results of the high-pressure (~7 MPa) steady-state natural circulation test ST-NC-02 conducted at the ROSA-IV Large Scale Test Facility (LSTF). The simulations used a fairly detailed noding of the LSTF particularly in the vessel and the primary and secondary side of the steam generators. A single flow channel is used to model the primary side of the steam generator U-tubes. In general, the results are in good agreement with those observed in the ST-NC-02 test.
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