Investigation of combined free and forced convection in a 2 x 6 rod bundle. [LMFBR]

Technical Report · Fri Jul 01 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/7088966· OSTI ID:7088966

Quigley, M S; McMonagle, C A; Bates, J M

The report documents a study designed to provide velocity and temperature data in a rod bundle geometry with low Reynolds number flows and severe radial power gradients. The data were then used to verify predictions by the COBRA computer program in the combined free and forced convection flow regime. Comparable flow conditions may occur in the radial blanket of a Liquid Metal Fast Breeder Reactor (LMFBR), in which radial power gradients up to 4 : 1 may exist across an assembly. Under low flow rate conditions the power gradient may cause significant buoyancy forces potentially resulting in flow redistribution within the radial assemblies. Consequently, there is a need to evaluate whether available thermal-hydraulic design codes can accurately predict the corresponding temperature and velocity profiles.

• Research Organization: Battelle Pacific Northwest Labs., Richland, Wash. (USA)
• DOE Contract Number: EY-76-C-06-1830
• OSTI ID: 7088966
• Report Number(s): BNWL-2216
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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Breeding
42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
BREEDER REACTORS
CONVECTION
ENERGY TRANSFER
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
FLUID FLOW
FORCED CONVECTION
FUEL ASSEMBLIES
FUEL ELEMENT CLUSTERS
HEAT TRANSFER
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
NATURAL CONVECTION
REACTORS
REYNOLDS NUMBER