Assessment of RELAP5/MOD 2 Against Marviken Jet Impingement Test 11 Level Swell (NUREG/IA-0006)

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Publication Information

Date Published: September 1986

Prepared by:
0. Rosdahl, D. Caraher

Swedish Nuclear Power Inspectorate
P.O. Box 27106
S102 #52 Stockholm, Sweden

Prepared as part of:
The Agreement on Research Participation and Technical Exchange
under the International Thermal-Hydraulic Code Assessment
and Application Program (ICAP)

Published by:
Office of Nuclear Regulatory Research
U.S. Nuclear Regulatory Commission
Washington, DC 20555

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Abstract

RELAP5/MOD2 simulations of level swell of saturated liquid in a large (5 m diameter, 22 m high) vessel are reported. For certain nodalizations RELAP5 is shown to predict the measured void fraction profile with fair accuracy. RELAP5 results are shown to be dependent upon nodalization with the accuracy of computed results deteriorating significantly when a large number of nodes is employed.

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