COBRA-SFS modifications and cask model optimization

Technical Report · Sun Jan 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/6242345· OSTI ID:6242345

Rector, D R; Michener, T E

Spent-fuel storage systems are complex systems and developing a computational model for one can be a difficult task. The COBRA-SFS computer code provides many capabilities for modeling the details of these systems, but these capabilities can also allow users to specify a more complex model than necessary. This report provides important guidance to users that dramatically reduces the size of the model while maintaining the accuracy of the calculation. A series of model optimization studies was performed, based on the TN-24P spent-fuel storage cask, to determine the optimal model geometry. Expanded modeling capabilities of the code are also described. These include adding fluid shear stress terms and a detailed plenum model. The mathematical models for each code modification are described, along with the associated verification results. 22 refs., 107 figs., 7 tabs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6242345
• Report Number(s): PNL-6706; ON: DE89007684
• Country of Publication: United States
• Language: English

Related Subjects

050900* -- Nuclear Fuels-- Transport
Handling
& Storage
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
990230 -- Mathematics & Mathematical Models-- (1987-1989)
C CODES
CASKS
COMPUTER CALCULATIONS
COMPUTER CODES
CONTAINERS
ENERGY TRANSFER
FINITE DIFFERENCE METHOD
FLUID FLOW
HEAT TRANSFER
ITERATIVE METHODS
MATHEMATICAL MODELS
MODIFICATIONS
NUMERICAL SOLUTION
OPTIMIZATION
SPENT FUEL CASKS
SPENT FUEL STORAGE
STORAGE