DC//N-S//N HYBRID METHOD FOR NEUTRON TRANSPORT CALCULATIONS IN R-Z GEOMETRY.

Yoichi Watanabe, Charles W. Maynard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A hybrid method for two-dimensional neutron transport calculations in R-Z geometry has been developed. In this method the equation in void regions is solved by the discrete cones (DC//N) method, whereas the equation in non-void regions is solved by the standard discrete ordinates (S//N) method. The two methods are incorporated in one computer program so that a user does not see the difference from a program applying only the S//N method. This DC//N-S//N hybrid method significantly mitigates the ray effects in a void compared with a solution by the same order S//N. The method, however, requires a little more computing effort and it is difficult for the method to yield a sufficiently accurate solution for narrow duct streaming problems.

Original languageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherANS
Pages489-500
Number of pages12
ISBN (Print)0894481177
StatePublished - Dec 1 1985

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