Enhancements to the Nodal Drift Method for a Rod Ejection Accident in a PWR-like mini-core with lumped thermal model
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- 作者：P. Pré ; vot ; A. Nuttin ; nuttin@lpsc.in2p3.fr ; N. Capellan ; O. Mé ; plan
- 关键词：Nodal Drift Method ; Spatial kinetics ; Diffusion theory ; Rod Ejection Accident ; PWR ; Lumped thermal model
- 刊名：Annals of Nuclear Energy
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：101
- 期：Complete
- 页码：128-138
- 全文大小：2248 K
- 卷排序：101
文摘
The minimalistic diffusion-based Nodal Drift Method has been optimized towards 3D PWR kinetics. The recent benchmark of a Rod Ejection Accident in a PWR-like mini-core has been used for validation. With common thermal lumped coupling, progressive enhancements from a simple model have been tested. Main validated developments deal with integration scheme, spatial discretization and ejected rod modelization.