Iterative methods for solving space-time one dimensional multigroup diffusion equations Online publication date: Mon, 21-Dec-2009
by Y. Yulianti, Z. Su'ud, A. Waris, S.N. Khotimah
International Journal of Nuclear Energy Science and Technology (IJNEST), Vol. 5, No. 2, 2010
Abstract: The numerical methods of Successive Overrelaxation (SOR), Successive-Line Overrelaxation (SLOR) and Alternating Direction Implicit (ADI) are used in this research to solve space-time one-dimensional diffusion equations. The results of this research have been compared with the ANL-Benchmark Problem BSS-6-A2. In general, the results are in agreement with the Argonne National Laboratory Benchmark Source Situation (BSS-6-A2). However, there is very little difference between SOR and ANL-BSS-6-A2 because of inner iterations in the SOR method. This research shows that the SLOR and ADI methods are more accurate and more efficient than the SOR method in solving space-time diffusion equations. SLOR is the most efficient in the case of a big number of mesh elements; however, the ADI method is the most efficient in the case of a small number of mesh elements.
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