An Estimation for flow straighteners of lithium target assembly in IFMIF/EVEDA facility by computational fluid dynamics (CFD)

Fujishiro, Koji; Ida, Mizuho; Wakai, Eiichi  ; Kondo, Hiroo; Sugimoto, Masayoshi; Friedrich, G.*

International Fusion Materials Irradiation Facility (IFMIF) is an activity to evaluate design of the facility of high-intensity neutron source at 14 MeV for nuclear fusion research and development to evaluate the fusion reactor materials. And Engineering Varidation and Engineering Design Activities (EVEDA) has been promoted under "Broader Approach (BA) Activities" with European and Japanese agreement. In this study, computational fluid dynamics, code FLUENT, was used on the two geometry of the Flow Straighteners which were designed for facility of EVEDA. According the analyzed results, they are crified that the flow turbulent kinetic energy has been generated in the junction between bend to Flow Straightener and bend section of piping, and that, it was found to exhibit rectification ability even on shortage geometry in the flow direction of Flow Straightner with margin under the operating condition that are currently scheduled of Lithium Test Loop.