Numerical simulation of 3D violent free-surface flows by multi-resolution MPS method

3D violent free-surface flows are modelled by multi-resolution moving particle semi-implicit (MPS) method. Firstly, a 2D dam-break flow with an obstacle is performed. This shows that multi-resolution MPS can provide the integrated and clear shape of free surface as that by universally fine (Uni-Fine) with high-resolution particles in the entire domain. Then the multi-resolution MPS method is employed to carry out 3D violent free-surface flows, including dam-break and water entry. In the dam-break case, a relative rational pressure field can be provided and the predicted impact pressures are also compared with experimental data. In the 3D water entry case, the present method can capture complex phenomena including largely free-surface deformations and splashing. The penetration depth of the cylinder is also close to experimental data.