Sloshing

A new boundary integral method (BIM) is employed to solve the 2D and 3D nonlinear sloshing problems. Applying the subtracting and adding-back technique by regularized boundary integral method, the integrals of singularity and near-singularity in the boundary integral equation can be removed and replaced appropriately by the alternative terms, respectively. This appoach is more efficient than traditional boundary element method.

Several small-scaled model tests on a shaking table, including harmonic and earthquake excitations, are carried out to verify the numerical methods. An artificial damping coefficient is introduced to simulate the energy dissipation of liquid motion. The results shows that BIM is reliable and efficient for nonlinear sloshing simulation.

Project:
Nonlinear Sloshing Dynamics — funded by MOST of Taiwan (2017)