Published 1998
| Version v1
Journal article
Non-linear correction for accuracy improvement of the neutron calculations with HEXAB-3D Code
Creators
- 1. Technical University, Varna (Bulgaria)
- 2. INRNE, Sofia (Bulgaria)
Description
A differential approach of application of the Improved Coarse Mesh Method in the 3D hexagonal geometry diffusion problem is presented. A non-linear nodal model of improvement based on the solution of the local balance equation in a triangular sub-region of the node with triple decreased mesh step and a presentation of the spatial distribution of the neutron flux by linear combination of trigonometric al hyperbolic functions are presented. A principal program realisation of the differential nonlinear correction in the hexagonal geometry diffusion code HEXA-B-3D is described. Benchmark results for a 3D WWER-1000 benchmark problem are presented
Additional details
Additional titles
- Original title (Bulgarian)
- Prilozhenie na diferentzialnata nelinejna korektsiya za povishavane na tochnostta na neutronno-fizichnite razcheti v programata HEXAB-3D
Publishing Information
- Journal Title
- Dokladi na BYaD
- Journal Volume
- 3
- Journal Issue
- 1
- Journal Page Range
- p. 9-13
- ISSN
- 1310-8727
INIS
- Country of Publication
- Bulgaria
- Country of Input or Organization
- Bulgaria
- INIS RN
- 30058747
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- FINITE DIFFERENCE METHOD; H CODES; HEXAGONAL LATTICES; NEUTRON FLUX; THREE-DIMENSIONAL CALCULATIONS; WWER-5 REACTOR
- Descriptors DEC
- CALCULATION METHODS; COMPUTER CODES; CRYSTAL LATTICES; CRYSTAL STRUCTURE; ENRICHED URANIUM REACTORS; ITERATIVE METHODS; NUMERICAL SOLUTION; POWER REACTORS; PWR TYPE REACTORS; RADIATION FLUX; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WWER TYPE REACTORS
Optional Information
- Notes
- 8 refs., 1 fig., 1 tab.