The Effect of Porous Media on Wave-Induced Sloshing in a Floating Tank

Placing porous media in a water tank can change the dynamic characteristics of sloshing fluid. Its extra damping effect mitigate and, thereby, protect integrity liquefied natural gas tank. In addition, out-of-phase force enables to serve as vibration absorber for floating structures ocean environment. The influence on wave-induced fluid and associated interaction with substructure ambient wave field are focus this study. numerical coupling algorithm includes potential-based Eulerian–Lagrangian method simulation Newmark time-integration rigid-body dynamics. An equivalent mechanical model rectangular subject pitch motion is proposed validated. approach, degrees freedom modeling be reduced so computation fast inexpensive. results linear nonlinear correlated. between body characterized. effectiveness added controlling mitigating response confirmed through frequency analysis.