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Development of RELAP/SLIP for the semiscale blowdown heat transfer test S-02-6 (NRC Standard Problem 6).

Author
Lyczkowski, R. W.
Published
United States : [publisher not identified], 1976.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1976.
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Fujita, N., Irani, A. A., Mecham, D. C., Moore, K. V., and Sawtelle, G. R.

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Summary
The RELAP4/SLIP code was developed in order to provide a realistic prediction of NRC Standard Problem 6 (Test S-02-6). RELAP/SLIP is a modified version of RELAP4-95 and includes a first level effort, state-of-the-art dynamic slip calculation in all vertical and horizontal junctions to account for unequal phase velocity and phase separation. The dynamic slip model accounts for transient inertial effects of each phase. This report contains the derivation of the dynamic slip field equations, a description of the modifications to the RELAP4 numerical scheme and recommendations for improved code performance. Several analytical problems and some experiment simulations including NRC Standard Problems 1 and 5 were analyzed in an effort to check out the RELAP/SLIP code. RELAP/SLIP calculations compared favorably with homogeneous equilibrium experimental data and previous RELAP4-95 predictions. To the best of the authors' knowledge, the consistent, complete and realistic computation of unequal phase velocities has been achieved for the first time in any general systems code with the successful simulation of the simple problems and Standard Problem 5 using RELAP/SLIP. This milestone is thus a signal achievement in the advancement of the state-of-the-art of transient two-phase, two-velocity, compressible flow analysis.
Report Numbers
EPRI-NP-343
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
OSTI Identifier 7253453
Research organization: Energy, Inc., Idaho Falls, ID (USA).
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