Dynamic characteristics of liquid filled rectangular tank with baffles

A two-dimensional finite element analysis is adopted for the sloshing analysis of liquid filled rectangular tank with baffles using the velocity potential formulation and the linear water wave theory. The slosh frequencies of liquid in a rectangular tank without and with baffles are evaluated. Rectangular plates are used as baffles, which are attached to the two opposite walls of the tank. The tank-baffle system is considered is rigid. The slosh frequencies of liquid are computed for different dimensions and positions of baffle(s). The results obtained for tank without baffle are comparable with the results available in the open literatures. In a tank-baffle system, the baffle plays an important role in changing the free vibration characteristics of liquid. The slosh response of liquid in a rectangular tank with and without baffle is studied under steady state sinusoidal base excitation. The slosh displacement of liquid may be reduced noticeably by putting baffle in a liquid filled rectangular tank.