Coccinelle 1D: A one-dimensional neutron kinetic code using time-step size control
Conference
·
OSTI ID:459160
- Electricite de France, Clamart (France)
- Electricite de France, Villeurbanne (France)
COCCINELLE 1D is a one-dimensional neutron kinetic code that has been adapted from Electricite de France (EDF)`s core design code : COCCINELLE. The aim of this work is to integrate a code, derived from COCCINELLE and therefore taking advantage of most of its developments, into EDF`s Pressurized Water Reactors (PWR) simulation tools. The neutronic model of COCCINELLE ID has been optimized so that the code executes as rapidly as possible. In particular, a fast and stable kinetic method has been implemented: the Generalized Runge-Kutta (GRK) method together with its associated time-step size control. Moreover, efforts have been made to structure the code such that it could be easily integrated into any PWR simulation tool. Results show that the code executes at a rate faster than real-time on several test cases, and that, once integrated in a PWR simulation tool, the system is in good agreement with an experimental transient, that is a 3-hour load follow transient.
- OSTI ID:
- 459160
- Report Number(s):
- CONF-950420--
- Country of Publication:
- United States
- Language:
- English
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