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Convergence of the inner-outer iteration scheme

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Abstract

In this paper, we analyse the convergence of the inner-outer iteration scheme for determining the multiplication factor and the fundamental mode neutron distribution within the finite differenced approximation to the multi-group neutron diffusion equation. We show that a set of four sufficient conditions, on the number of inner iterations to be performed, can be obtained which would guarantee the convergence of the scheme. A few special cases are analysed where we determine the minimum number of inner iterations required for convergence.

Zusammenfassung

Gegenstand der Arbeit ist die Konvergenz des „inner-outer“ Iterationsschemas zur Berechnung des Multiplikationsfaktors und der Grundverteilung der Neutronen in der Differenzenapproximation zur eingruppigen Neutronendiffusionsgleichung. Wir erhalten vier Bedingungen für die Anzahl der auszuführenden äußeren Iterationen, die zur Erzielung der Konvergenz hinreichen. In einigen Spezialfällen bestimmen wir auch die Minimalzahl der für die Konvergenz erforderlichen inneren Iterationen.

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Menon, S.V.G., Khandekar, D.C. Convergence of the inner-outer iteration scheme. Z. angew. Math. Phys. 35, 321–331 (1984). https://doi.org/10.1007/BF00944881

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  • DOI: https://doi.org/10.1007/BF00944881

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