The NECP-X numerical nuclear reactor physics code
NECP-X is a large-scale parallel numerical nuclear reactor physics code and tool library. It provides the capability of simulating reactor phenomenon with 3D high resolutions.
NECP-X is based on the improved WLUP-69 energy group structure. It adopts global-local coupling resonance self-shielding method in resonance calculation and uses method of characteristics combined with the large-scale multiple parallel 2D/1D coupling method in transport calcualtion. As for multi-physics coupling simulation, the multi-physics coupling method based on the unified geometric modeling has been developed in NECP-X. It has achieved non-uniform steady-state simulation, transient simulataion, depletion simulation and multi-physics coupling simulation of the whole core. At the same time, a flexible general API interface has been developed as well and it can be opened to researchers for multi-physics coupling simulation research.
Compared to those industrial codes, NECP-X could provide results with much higher resolution and could deal with more general reactor types with these features:
· A more detailed description of the geometry
· More accurate models of resonance and transport calculations
· More refined phenonmena in reactor core obtained by multi-physics coupling simulation
NECP-X has been verified through a large number of cases including experimental reactors, small power reactors and large-scale commercial pressurized water reactors. The first cylce simulation of the second and third generation nuclear power plants such as M310, AP1000 and Hualong One have been firstly achieved at home. And multi-physics coupling simulation of the whole core has been realized as well, which can predict the changement of the fuel performance changes during long-term operation of nuclear reactors and the fuel damage phenonmena caused by rapid power-changing in transient condition. At the same time, the visualization of numerical results have been realized based on VR technology.
NECP-X was originally developed by members of Nuclear Engineering Computational Physics (NECP) lab at Xi’an Jiaotong University. The project was started in March 2015. Current main contributors are Zhouyu Liu, Jun Chen, Chen Zhao, Qingming He, Xingjian Wen, Bo Wang, Dangwei Ma, Liangliang, Lu Cao, Yang Liu, Xinyu Zhou, Xiaobei Xu, Yijun Zhang, Minwan Zhang, Junji Chen, Sifan Zhang, Xining Wang, Siyu Yi.
Members in 2017&2020
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