Due to powerful geometry treatment capability, method of characteristics (MOC) currently becomes one of the best method to solve neutron transport equation. In MOC method, boundary condition treatment, complex geometry representation, and advanced acceleration method are the key techniques to develop a powerful MOC code to solve complex problem. In this paper, we developed a powerful MOC module, which can treat different boundary conditions with two methods. For problems with special border shapes and boundary condition, such as rectangle, 1/8 of square, hexagon, 1/3 of hexagon, 1/6 of hexagon problems with reflection, rotation, and translation boundary condition, the MOC module adopts periodic tracking method, with which rays can return to start point after a certain distance. For problems with general border shapes, the MOC module uses ray prolongation method, which can treat arbitrary border shapes and boundary conditions. Meanwhile, graphic user interface based on computer aided design (CAD) software is developed to generate the geometry description file, in which geometry is represented by “lines and arcs” method. With the graphic user interface, the geometry and mesh can be described and modified correctly and fast. In order to accelerate the MOC transport calculation, the generalized coarse mesh finite difference (GCMFD) is used, which can use irregular coarse mesh diffusion method to accelerate the transport equation. The MOC module was incorporated into advanced neutronics lattice code KYLIN-2, which was developed by Nuclear Power Institute of China (NPIC) and used to simulate the assembly of current pressurized water reactor (PWR) and advanced reactors, to solve the transport equation with multigroup energy structure in cross sections database. The numerical results show that the KYLIN-2 code can be used to calculate 2D neutron transport problems in reactor accurately and fast. In future, the KYLIN-2 code will be released and gradually become the main neutron transport lattice code in NPIC.
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July 2017
Research-Article
The Powerful Method of Characteristics Module in Advanced Neutronics Lattice Code KYLIN-2
Xiaoming Chai,
Xiaoming Chai
State Key Laboratory of Reactor System
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: chaixm@163.com
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: chaixm@163.com
Search for other works by this author on:
Xiaolan Tu,
Xiaolan Tu
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: tuxiaolan2014@126.com
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: tuxiaolan2014@126.com
Search for other works by this author on:
Wei Lu,
Wei Lu
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: luwei9s@sina.cn
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: luwei9s@sina.cn
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Zongjian Lu,
Zongjian Lu
State Key Laboratory of Reactor System
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: 317142242@qq.com
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: 317142242@qq.com
Search for other works by this author on:
Dong Yao,
Dong Yao
State Key Laboratory of Reactor System
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: yaodong_npic@163.com
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: yaodong_npic@163.com
Search for other works by this author on:
Qing Li,
Qing Li
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: liqing-npic@126.com
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: liqing-npic@126.com
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Wenbin Wu
Wenbin Wu
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: wenbinwu@126.com
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: wenbinwu@126.com
Search for other works by this author on:
Xiaoming Chai
State Key Laboratory of Reactor System
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: chaixm@163.com
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: chaixm@163.com
Xiaolan Tu
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: tuxiaolan2014@126.com
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: tuxiaolan2014@126.com
Wei Lu
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: luwei9s@sina.cn
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: luwei9s@sina.cn
Zongjian Lu
State Key Laboratory of Reactor System
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: 317142242@qq.com
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: 317142242@qq.com
Dong Yao
State Key Laboratory of Reactor System
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: yaodong_npic@163.com
Design Technology,
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: yaodong_npic@163.com
Qing Li
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: liqing-npic@126.com
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: liqing-npic@126.com
Wenbin Wu
Nuclear Power Institute of China (NPIC),
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: wenbinwu@126.com
No. 328, Road Changshun, Shuangliu,
Chengdu 610041, China
e-mail: wenbinwu@126.com
1Corresponding author.
Manuscript received September 24, 2016; final manuscript received February 5, 2017; published online May 25, 2017. Assoc. Editor: Leon Cizelj.
ASME J of Nuclear Rad Sci. Jul 2017, 3(3): 031004 (9 pages)
Published Online: May 25, 2017
Article history
Received:
September 24, 2016
Revised:
February 5, 2017
Citation
Chai, X., Tu, X., Lu, W., Lu, Z., Yao, D., Li, Q., and Wu, W. (May 25, 2017). "The Powerful Method of Characteristics Module in Advanced Neutronics Lattice Code KYLIN-2." ASME. ASME J of Nuclear Rad Sci. July 2017; 3(3): 031004. https://doi.org/10.1115/1.4035934
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