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ATHOS3 computer code verification: Volume 2, 0. 95-scale test: Final report

Technical Report ·
OSTI ID:5012899
As Part II of the EPRI Research Project S-310-8 for ATHOS3 code verification applications, the December 1985 version of the ATHOS3 code was used to analyze the flow field in the 0.95 scale test model of the Westinghouse Model D4 steam generator preheater. The test model is a 90/degree/ segment of the preheater region consisting of the entire five flow passes in the preheater. The experiments were conducted using ambient air as the working fluid. Tube surface velocities at tube Row 49, Passes 1, 2 and 3, tube Row 47, Pass 1 and at the back of the T-slot of the tube bundle were measured and compared with ATHOS3 predictions. ATHOS3 analysis models in both cylindrical and Cartesian coordinate systems were prepared. Coefficients in the correlations for friction factor and turbulence effective viscosity were varied in the calculations. Pressure differentials between various locations inside the test model were also measured and compared with code predictions. The results of the code verification with the test data are presented in this report.
Research Organization:
Electric Power Research Inst., Palo Alto, CA (USA)
OSTI ID:
5012899
Report Number(s):
EPRI-NP-5557-Vol.2; ON: TI88011937
Country of Publication:
United States
Language:
English