||Impact of the beam pressure on the free surface of the liquid lithium target of fusion neutron sources
中村, 誠 ,
近藤, 浩夫 ,
金村, 卓治 ,
小柳津, 誠 ,
落合, 謙太郎鈴木, 寛光
Accelerator-driven fusion neutron sources, e.g. A-FNS and DONES, are being designed, based on the IFMIF/EVEDA results, for neutron irradiation test of fusion reactor materials. A purpose of the study is to evaluate analytically the deformation of the Li free surface potentially caused by the beam pressure. A new 2-D fluid model of the beam-on target of an IFMIF-type fusion neutron source has been developed by extending the existing 2-D model of the Li target flow of the EVEDA Lithium Test Loop (ELTL). The analytical formula of the thickness of the beam-on target in the flow direction has been derived with accounting for the beam pressure effect. Evaluation the deformation of the thickness of the beam-on target of a fusion neutron source A-FNS, being designed in QST, Japan, is presented. The analytical results presented here may be used for a benchmark of more complicated CFD simulation for the beam-on-target design of IFMIF-type fusion neutron sources, e.g. A-FNS and DONES.
The 18th International Conference on Fusion Reactor Materials