Numerical Simulation for Sloshing Response of Free Surface in Main Vessel of Fast Reactor by Earthquake

There is the free surface in the main vessel of fast reactor. When long period earthquakes happen, the fluid will impact the wall of vessel and make the reactor dangerous. The 3D finite element model of the main vessel is constructed using ADINA, and the phenomenon of sloshing response to the free surface in the main vessel of fast reactor excited by 3 sine waves is simulated. The impact pressure from this research has provided important loadings for the integrality analysis of the main vessel. The feasibility of simulating the free surface flow and the advantage of dealing with FSI questions are validated.