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Steady-State Axial Pressure Losses Along the Exterior of Deformed Fuel Cladding: Multirod Burst Test (MRBT) Bundles B-L and B-2

Technical Report ·
DOI:https://doi.org/10.2172/5556189· OSTI ID:5556189
 [1]
  1. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
The experimental and COBRA-IV computational data presented in this report confirm that increased pressure losses, induced by the steady-state axial flow of water exterior to deformed Multirod Burst Test (MRBT) bundles B-1 and B-2, may be closely predicted using a bundle-averaged approach for describing flow channel restrictions. One anomaly that was encountered using this technique occurred while modeling the B-2 flow test data near a severe channel restriction: the COBRA-IV results tended to underestimate experimental pressure losses.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE; USNRC
DOE Contract Number:
W-7405-ENG-26
OSTI ID:
5556189
Report Number(s):
ORNL/NUREG/TM--350; NUREG/CR-1011
Country of Publication:
United States
Language:
English