NDLI: Development of Three-Dimensional Neutron Kinetics Code Based on High Order Nodal Expansion Method in Hexagonal-Z Geometry

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Chao, Guo Yu, Liu Hangxing, He Luguo, Liu Xiaoyu, Wang Sufang, Xin Peiyang, Li Xiaoli, Wu Hongsheng, Yuan
Copyright Year	2018
Abstract	To solve three-dimensional kinetics problems, a high order nodal expansion method for hexagonal-z geometry (HONEM) and a Runge-Kutta (RK) method are respectively adopted to deal with the spatial and temporal problem. In the HONEM, 1D partially-integrated flux are approximated by using four order polynomial. The two order polynomial is adopted to the approximation of partially-integrated leakages. The Runge-Kutta method is adopted as a tool for dispersing the time term of 3D kinetics equation. A flux weighting method (FWM) is used for obtaining homogenized cross sections of mix node. The three-dimensional hexagonal kinetics code has been developed based on this method and tested with two benchmark problems of VVER which are the control rod ejection without any feedback and with simple adiabatic Doppler feedback. The results calculated by this code agree well with the reference results and the code is validated.
Sponsorship	Nuclear Engineering Division
File Format	PDF
ISBN	9780791851456
DOI	10.1115/ICONE26-81356
Volume Number	Volume 3: Nuclear Fuel and Material, Reactor Physics, and Transport Theory
Conference Proceedings	2018 26th International Conference on Nuclear Engineering
Language	English
Publisher Date	2018-07-22
Publisher Place	London, England
Access Restriction	Subscribed
Subject Keyword	Geometry Leakage Cross section (physics) Approximation Feedback Neutrons Polynomials Runge-kutta methods
Content Type	Text
Resource Type	Article

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