Two-group sparse-grid nodal neutron balance equation of the BIPR-8 computer program

Two-group sparse-grid nodal neutron balance equation of the BIPR-8 computer program

The transition from finite-difference diffusion equations for solving problems of neutron transport in VVER to the nodal sparse-grid neutron balance equations used in the BIPR-8 computer program is examined. The solution error is decreased by using trial functions to describe the neutron field insid...

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Veröffentlicht in:Atomic energy (New York, N.Y.) N.Y.), 2008-07, Vol.105 (1), p.8-17
1. Verfasser: Lizorkin, M. P.
Format: Artikel
Sprache:eng
Schlagworte:
Approximation
Boundary conditions
Computer programming
Computers
Hadrons
Heavy Ions
Neutrons
Nuclear Chemistry
Nuclear Energy
Nuclear engineering
Nuclear Physics
Physics
Physics and Astronomy
Studies
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Zusammenfassung:The transition from finite-difference diffusion equations for solving problems of neutron transport in VVER to the nodal sparse-grid neutron balance equations used in the BIPR-8 computer program is examined. The solution error is decreased by using trial functions to describe the neutron field inside cells in addition to the condition of continuity of the neutron flux and current on the common boundaries between the cells. The corresponding nodal equations for solving the problems of three-dimensional neutron kinetics in the BIPR-8KN program are presented.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-008-9059-0