An advanced multidimensional method for structural and hydrodynamic analysis of liquid-metal fast breeder reactor piping systems
An advanced multidimensional method for structural and hydrodynamic analysis of piping systems of liquid-metal fast breeder reactors under various accident loads is described. The method couples a two-dimensional finite difference hydrodynamic technique with a three-dimensional finite element structural dynamics program. In the analysis, an elbow hydrodynamic model has been developed to account for the effect of global elbow motion. Treatment is provided for calculating fluid motion in the vicinity of the isolated flow region, rigid obstacle, and baffle plates, which commonly occurs in the in-line components. Also, an implicit time-integration scheme has been developed for structural analysis under long-duration accident loads. Three sample problems are given, dealing with analyses of (a) multidimensional fluid-structure interaction, (b) hydrodynamics in the in-line components, and (c) seismic response of a pipe-elbow loop.
- Research Organization:
- Argonne National Laboratory, Reactor Analysis and Safety Division, Argonne, IL 60439
- OSTI ID:
- 6072135
- Journal Information:
- Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 92:1; ISSN NSENA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
210500 -- Power Reactors
Breeding
22 GENERAL STUDIES OF NUCLEAR REACTORS
220900* -- Nuclear Reactor Technology-- Reactor Safety
ACCIDENTS
BAFFLES
BREEDER REACTORS
COMPUTERIZED SIMULATION
CONTROL EQUIPMENT
COOLING SYSTEMS
ENERGY SYSTEMS
EPITHERMAL REACTORS
EQUIPMENT
FAST REACTORS
FBR TYPE REACTORS
FINITE DIFFERENCE METHOD
FLOW REGULATORS
FLUID FLOW
FLUID MECHANICS
FLUID-STRUCTURE INTERACTIONS
HYDRODYNAMIC MODEL
HYDRODYNAMICS
ITERATIVE METHODS
LIQUID METAL COOLED REACTORS
LMFBR TYPE REACTORS
MATHEMATICAL MODELS
MECHANICS
NUMERICAL SOLUTION
PARTICLE MODELS
PIPES
REACTOR ACCIDENTS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
SEISMIC EFFECTS
SIMULATION
STATISTICAL MODELS
THERMODYNAMIC MODEL
TIME DEPENDENCE