SPACER GRID FOR FUEL ASSEMBLY AND FUEL ASSEMBLY PROVIDED WITH SUCH A SPACER GRID

摘要

The present invention relates to a spacer grid (14) that defines a network of cells (22) for receiving fuel rods (6) extending in a longitudinal direction (L), the grid (14) including mixing blades (30) for directing the coolant flow (E). At least one mixing blade (30) includes at least one surface having a plurality of irregularities (32).