Abstract

The authors analyze experimental data on flow resistance in wire-spaced fuel rod bundles. The formula is based on the data for the multirod bundles or for the rod bundles with peripheral pattern. Figures show the schematic cross section of the fast reactor's fuel assemblies, and flow resistance factors in the cells of an infinite triangular lattice of wire-wrap spaced fuel elements. A more reliable generalizing formula than those currently available was obtained for the flow resistance in wire-wrap spaced fuel rod bundles. The formula is valid over a wide range of parameters being measured including close-packed lattices.

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