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Acceleration of the AFEN method by two-node nonlinear iteration

Abstract

A nonlinear iterative scheme developed to reduce the computing time of the AFEN method was tested and applied to two benchmark problems. The new nonlinear method for the AFEN method is based on solving two-node problems and use of two nonlinear correction factors at every interface instead of one factor in the conventional scheme. The use of two correction factors provides higher-order accurate interface fluxes as well as currents which are used as the boundary conditions of the two-node problem. The numerical results show that this new method gives exactly the same solution as that of the original AFEN method and the computing time is significantly reduced in comparison with the original AFEN method. 7 refs., 1 fig., 1 tab. (Author)
Authors:
Moon, Kap Suk; Cho, Nam Zin; Noh, Jae Man; Hong, Ser Gi [1] 
  1. Korea Advanced Institute of Science and Technology, Taejon (Korea, Republic of)
Publication Date:
Dec 31, 1998
Product Type:
Conference
Report Number:
ETDE/KR-99732629; CONF-9805154-
Reference Number:
SCA: 990200; 220100; PA: KR-99:000331; EDB-99:039645; SN: 99002059958
Resource Relation:
Conference: The Korean Nuclear Society spring meeting, Seoul (Korea, Republic of), 29-30 May 1998; Other Information: PBD: 1998; Related Information: Is Part Of Proceedings of the korean nuclear society spring meeting vol I, May 29-30, 1998 Seoul, Korea; PB: 905 p.
Subject:
99 MATHEMATICS, COMPUTERS, INFORMATION SCIENCE, MANAGEMENT, LAW, MISCELLANEOUS; 22 NUCLEAR REACTOR TECHNOLOGY; NODAL EXPANSION METHOD; NONLINEAR PROBLEMS; ITERATIVE METHODS; BENCHMARKS; NUMERICAL ANALYSIS; NUMERICAL SOLUTION
OSTI ID:
325238
Research Organizations:
Korean Nuclear Society, Taejon (Korea, Republic of)
Country of Origin:
Korea, Republic of
Language:
English
Other Identifying Numbers:
Other: ON: DE99732629; TRN: KR9900331
Availability:
OSTI as DE99732629
Submitting Site:
KR
Size:
pp. 87-92
Announcement Date:

Citation Formats

Moon, Kap Suk, Cho, Nam Zin, Noh, Jae Man, and Hong, Ser Gi. Acceleration of the AFEN method by two-node nonlinear iteration. Korea, Republic of: N. p., 1998. Web.
Moon, Kap Suk, Cho, Nam Zin, Noh, Jae Man, & Hong, Ser Gi. Acceleration of the AFEN method by two-node nonlinear iteration. Korea, Republic of.
Moon, Kap Suk, Cho, Nam Zin, Noh, Jae Man, and Hong, Ser Gi. 1998. "Acceleration of the AFEN method by two-node nonlinear iteration." Korea, Republic of.
@misc{etde_325238,
title = {Acceleration of the AFEN method by two-node nonlinear iteration}
author = {Moon, Kap Suk, Cho, Nam Zin, Noh, Jae Man, and Hong, Ser Gi}
abstractNote = {A nonlinear iterative scheme developed to reduce the computing time of the AFEN method was tested and applied to two benchmark problems. The new nonlinear method for the AFEN method is based on solving two-node problems and use of two nonlinear correction factors at every interface instead of one factor in the conventional scheme. The use of two correction factors provides higher-order accurate interface fluxes as well as currents which are used as the boundary conditions of the two-node problem. The numerical results show that this new method gives exactly the same solution as that of the original AFEN method and the computing time is significantly reduced in comparison with the original AFEN method. 7 refs., 1 fig., 1 tab. (Author)}
place = {Korea, Republic of}
year = {1998}
month = {Dec}
}