Numerical and modeling techniques used in the EPIC code. [LMFBR fuel pin failure]
EPIC models fuel and coolant motion which result from internal fuel pin pressure (from fission gas or fuel vapor) and/or from the generation of sodium vapor pressures in the coolant channel subsequent to pin failure in an LMFBR. The modeling includes the ejection of molten fuel from the pin into a coolant channel with any amount of voiding through a clad rip which may be of any length or which may expand with time. One-dimensional Eulerian hydrodynamics is used to model both the motion of fuel and fission gas inside a molten fuel cavity and the mixture of two-phase sodium and fission gas in the channel. Motion of molten fuel particles in the coolant channel is tracked with a particle-in-cell technique.
- Research Organization:
- Argonne National Lab., IL (USA)
- OSTI ID:
- 7311739
- Report Number(s):
- CONF-770304-14
- Country of Publication:
- United States
- Language:
- English
Similar Records
User's guide to EPIC, a computer program to calculate the motion of fuel and coolant subsequent to pin failure in an LMFBR
SAS/FCI: a fuel-coolant interaction model for LMFBR whole-core accident analysis
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