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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 327 - 339 (13page)
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This article presents a new globalelocal hybrid coarse-mesh finite difference (HCMFD) method forefficient parallel calculation of pin-by-pin heterogeneous core analysis. In the HCMFD method, the onenodecoarse-mesh finite difference (CMFD) scheme is combined with a nodal expansion method (NEM)ebased two-node CMFD method in a nonlinear way. In the global-local HCMFD algorithm, the globalproblem is a coarse-mesh eigenvalue problem, whereas the local problems are fixed source problemswith boundary conditions of incoming partial current, and they can be solved in parallel. The globalproblem is formulated by one-node CMFD, in which two correction factors on an interface are introducedto preserve both the surface-average flux and the net current. Meanwhile, for accurate and efficient pinwisecore analysis, the local problem is solved by the conventional NEM-based two-node CMFD method. We investigated the numerical characteristics of the HCMFD method for a few benchmark problems andcompared them with the conventional two-node NEM-based CMFD algorithm. In this study, the HCMFDalgorithmwas also parallelized with the OpenMP parallel interface, and its numerical performances wereevaluated for several benchmarks.
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참고문헌 (20)
참고문헌 신청
B. Inanov / 2008 / Embedded lattice transport calculation based on PARAGON-NEM code system for reactor core analysis / Int. Conf. On the Physics of Reactors, PHYSOR 2008
S. Zhang / 2008 / Feasibility of embedding nodal homogenization in next generation methods for 3D pin-by-pin core siumlation / Int. Conf. On the Physics of Reactors, PHYSOR 2008
M.A. Smith / 2003 / Benchmark on Deterministic Transport Calculations without Spatial Homogenization: a 2-D/3-D MOX Fuel Assembly 3-D Benchmark
J.E. Hoogenboom / 2011 / Monte Carlo Performance Benchmark for Detailed Power Density Calculation in a Full Size Reactor Core. Benchmark Specification Revision 1.2
N.Z. Cho / 2013 / Overlapping local/global iteration framework for whole-core transport solution / Nucl. Sci. Eng. 175:227
S. Zhang / 2008 / Feasibility of embedding nodal homogenization in next generation methods for 3D pin-by-pin core siumlation / Int. Conf. On the Physics of Reactors, PHYSOR 2008
M.A. Smith / 2003 / Benchmark on Deterministic Transport Calculations without Spatial Homogenization: a 2-D/3-D MOX Fuel Assembly 3-D Benchmark
J.E. Hoogenboom / 2011 / Monte Carlo Performance Benchmark for Detailed Power Density Calculation in a Full Size Reactor Core. Benchmark Specification Revision 1.2
N.Z. Cho / 2013 / Overlapping local/global iteration framework for whole-core transport solution / Nucl. Sci. Eng. 175:227
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