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U.S. Department of Energy
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ATHOS3 computer code verification: Volume 1, 2/3-scale test: Final report

Technical Report ·
OSTI ID:5012005
As part of an ATHOS3 code verification program as it relates to flow-induced tube vibration prediction, Westinghouse was contracted by the Steam Generator Project Office of EPRI in Project S-310-8, Part I to analyze the flow field in a Westinghouse 2/3 scale test model of the first pass of the preheat section of a Model D4 steam generator. The predicted velocities were to be compared with the test data obtained at midpoints between tube centers at tube Rows 49 (first row of tubes from feedwater entrance), 47, 45, and other locations. The tests were conducted with water at 60 psig and 100/degree/F. The tested water flow rate simulated the feedwater flow rate at full power conditions of a D4 steam generator. Analysis models in both cylindrical and Cartesian coordinates and different flow cell sizes were used in the code predictions. The measured total RMS forces on four front row tubes were also correlated with measured velocities at the four tubes. The results of the code verification with the test data are presented in this report.
Research Organization:
Westinghouse Electric Corp., Forest Hills, PA (USA). Steam Generator Technology Div.
OSTI ID:
5012005
Report Number(s):
EPRI-NP-5557-Vol.1; ON: TI88011933
Country of Publication:
United States
Language:
English