Open AccessModel for subchannel friction factors and flow redistribution in wire-wrapped rod bundles
Author(s) -
Pedro Carajilescov,
Eloi Fernández y Fernández
Publication year - 1999
Publication title -
revista brasileira de ciências mecânicas
Language(s) - English
Resource type - Journals
ISSN - 0100-7386
DOI - 10.1590/s0100-73861999000400003
Subject(s) - bundle , rod , materials science , duct (anatomy) , redistribution (election) , mechanics , hexagonal crystal system , flow (mathematics) , composite material , structural engineering , engineering , chemistry , physics , crystallography , anatomy , medicine , alternative medicine , pathology , politics , political science , law
The fuel element of LMFBR consists of a bundle of rods wrapped with an helical wire as spacer, surrounded by an hexagonal duct. In the present work, a semi-empirical model is developed to calculate bundle average and subchannel based friction factors and flow redistribution. The obtained results were compared to experimental data and they were considered satisfactory for wide range of geometrical parameters