Variational nodal transport solutions of multigroup criticality problems

C. B. Carrico*, E. E. Lewis

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Variational nodal methods are extended to treat multigroup and criticality problems and are implemented as a module for the production code DIF3D at Argonne National Laboratory. New within-group solution algorithms based on the partitioning of the response matrix equations result in computing times that are comparable to those obtained with a widely employed nodal transport method. Accuracy and timing comparisons are made for three few-group criticality problems in X-Y geometry.

Original languageEnglish (US)
Pages (from-to)99-106
Number of pages8
JournalProgress in Nuclear Energy
Issue number2-3
StatePublished - 1991

ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Safety, Risk, Reliability and Quality
  • Energy Engineering and Power Technology
  • Waste Management and Disposal


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