This paper develops a consistent particle method for capturing the highly non-linear behavior of violent free-surface flows, based on an Enhanced Weakly Compressible Moving Particle Semi-implicit (EWC-MPS) method. It pays special attention to the evaluation and improvement of two particle regularization techniques, namely, pairwise particle collision (PC) and particle shifting (PS). To improve the effectiveness of PC in removing noisy pressure field, and volume conservation issue of PS, we propose and evaluate several enhancements to these techniques, including a novel dynamic PC technique, and a consistent PS algorithm with new boundary treatments and additional terms (in the continuity and momentum equations). Besides, we introduce modified higher-order and anti-symmetric operators for the diffusive and shear force terms. Evaluation of the proposed developments for violent free-surface flow benchmark cases (2D dam-break, 3D water sloshing, and 3D dam-break with an obstacle) confirms an accurate prediction of the flow evolution and rigid body impact, as well as long-term stability of the simulations. The dynamic PC reduces pressure noises with low energy dissipation, and the consistent PS conserves the volume even for extreme deformations. Comparing the role of these new particle regularization techniques demonstrates the effectiveness of both in assuring the uniformity of the particle distribution and pressure fields; nevertheless, the implementation of PS is found to be more complex and time-consuming, mainly due to its need for free surface detection and boundary treatment with many tuning parameters.

本文基于增强的弱可压缩运动粒子半隐式（EWC-MPS）方法，开发了一种用于捕获暴力自由表面流的高度非线性行为的一致粒子方法。它特别关注两种粒子正则化技术（成对粒子碰撞（PC）和粒子移位（PS））的评估和改进。为了提高PC消除嘈杂的压力场的有效性以及PS的体积守恒问题，我们提出并评估了这些技术的一些增强功能，包括新颖的动态PC技术以及具有新的边界处理和附加条件的一致PS算法（在连续性和动量方程式）。此外，我们针对扩散力和剪力项引入了改进的高阶和反对称算子。对暴力的自由表面水基准案例（2D溃坝，3D晃荡和有障碍物的3D溃坝）的拟议开发进行的评估，确认了对流量演化和刚体撞击以及长程冲击的准确预测。模拟的长期稳定性。动态PC降低了压力噪声，能耗低，一致的PS即使在极端变形的情况下也可以节省体积。比较这些新的粒子正则化技术的作用，可以证明二者在确保粒子分布和压力场均匀性方面的有效性。然而，发现PS的实现更为复杂且耗时，这主要是由于需要自由表面检测和具有许多调整参数的边界处理。