Numerical Simulation of liquid sloshing in 3D elastic tanks

Numerical calculation method of liquid sloshing in elastic tanks is established.A finite element method is used for the structure domain discretization.Conservation equations of the fluid domain are discretized with finite volume method.Between structure domains and fluid domains through the ALE method is used to achieve coupled.Taking the 316 000 tons VLCC simplified model as the research object,sloshing loads in the tank and coupling effect with flexible tank are calculated.First,making the bulkhead stiffening,sloshing loads and other CFD results are compared to verify the feasibility and correctness of the calculation method.Then on the basis of this method liquid sloshing in three-dimensional elastic tank is simulated to study the variation of bulkhead thickness,external excitation,filling rate influence on the sloshing impact load and structure response,and liquid sloshing properties in elastic tanks are revealed.