Numerical Simulation for a Core Simulator of ACOP

An experimental facility, called ACOP, is being constructed in order to evaluate the flow and pressure distribution in the APR+ reactor core. The ACOP facility has a 1/5 linear scale of the prototype. The design is based on the conservation of Euler number which is a ratio of pressure drop to dynamic pressure under a sufficient turbulent flow condition. The each fuel channel in the reactor core, which consists of 257 HIPER fuel assemblies, will be modeled as a 1/5-scale core simulator, which preserves the hydraulic characteristics of the HIPER fuel assembly. The present study is to develop and verify the design parameters applied to the core flow simulator by using a commercial CFD code