[2K12-14] SFR Thermal Hydraulics

[2K13] Analysis of gas entrainment phenomenon from free liquid surface in a sodium cooled fast reactor

Validation of velocity profile and St number in a flow field

*Moe Hirakawa¹, Tkaaki Sakai¹, Toshiki Ezure², Masaaki Tanaka² (1. Tokai University, 2. JAEA)

Keywords:gas entrainment, CFD analysis , PIV mesurement, SFR

To clarify gas-entrainment phenomena from liquid surface vortexes, velocity measurement and CFD analysis in a circulating water tank were performed to evaluate the predictability of surface vortexes. It was clarified the detail flow velocity profile at the inlet by the measurements. And, it was found that the analysis predicted appropriately the surface vortex frequency of the experimental results.