The influence of flexible fluid structure interactions on sway induced tank sloshing dynamics

The analysis of liquid sloshing remains a challenging computational mechanics topic due to its complex underlying physics. rapid simulation problems requires accurate modelling two-phase fluid dynamics and impacts on solid tank boundaries by suitable Flexible Fluid Structure Interaction (FFSI) models. This paper presents hydroelastic model for the prediction sway induced loads flexible trapezoidal rectangular tanks. Tank walls vertical baffle in way mid span bottom are idealized Timoshenko beam structural dynamics. Hydroelastic is enabled Boundary Element Method (BEM) that couples wall with free surface hydrodynamics evaluate excitation forces peak hydrodynamic pressures perimeter. Results show case study presented accounting influence hydroelasticity may lead decrease oscillations pressure 20%. because flexibility coupled angular frequency motion. These benefits amplify further designs which lateral angle θ=80° decreased relative one about 80% 65%, respectively.