Thermal/hydraulic analysis research program. Quarterly report, April-June 1984. Volume 2 of 4. [PWR]
The TRAC-PF1/MOD1 independent assessment program at Sandia National Laboratories (SNLA) is part of a multi-faceted effort sponsored by the Nuclear Regulatory Commission (NRC) to determine the ability of various systems codes to predict the detailed thermal/hydraulic response of LWRs during accident and off-normal conditions. This program is a successor to the RELAP5/MOD1 independent assessment project underway at Sandia for the last two years. During this quarter, a sequence of calculations was completed investigating TRAC's ability to model horizontally stratified, cocurrent flow, for comparison with experimental data produced at Northwestern University. TRAC-PF1/MOD1 correctly predicts the qualitative effects of changes in experimental conditions. The results of the completed NEPTUNUS pressurizer component effects test analyses show that somewhat higher pressures and fluid temperatures were calculated during insurges with spray flow than were measured in the test. Sensitivity studies were performed on both the time step used, and the type of components and number of cells used to model the pressurizer test vessel.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6409305
- Report Number(s):
- NUREG/CR-3820; SAND-84-1025/2; ON: TI85000029
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thermal/hydraulic analysis research program quarterly report, October-December 1983. Volume 4. [TRAC-PF1/MOD1 assessment; Semiscale S-UT-8 analysis]
TRAC-PF1/MOD1 independent assessment: NEPTUNUS pressurizer test Y05. [PWR]
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