Abstract The Weakly-Compressible Moving Particle Semi-implicit (WC-MPS) approach is applied to investigate the wave propagation and the flow fields induced by sliding blocks. Since there are already studies focusing on an inclination slope of 45°, two slope angles, 40° and 50°, are used to obtain the additional experimental results. Sliding blocks are released under water, where the top edges are parallel to the water surface. The simulation results are compared to the experimental measurements both on the water surface and the velocity distribution at specific locations. To analyze the flow fields, contour and vector plots illustrate the flow characteristics for the entire velocity distribution in the simulation domain along with the vortex movements from the sliding block. Two case scenarios are presented to investigate the velocity distribution of the sliding block. For the first case scenario, seven cross-sections, including the front edge, the top edge, and the back edge of the sliding block were selected to further identify the characteristics of the horizontal and vertical velocity distributions. The second case scenario has five specific locations at the front, top and back edge of the block. A good agreement was obtained between the WC-MPS simulated results to the experimental data.

中文翻译：

---

水下滑坡产生波浪的数值与实验研究

摘要 弱可压缩运动粒子半隐式（WC-MPS）方法被用于研究由滑块引起的波传播和流场。由于已有研究侧重于 45° 的倾斜角，因此使用两个倾斜角 40° 和 50° 来获得额外的实验结果。滑动块在水下释放，其中顶部边缘平行于水面。将模拟结果与水面和特定位置的速度分布的实验测量结果进行比较。为了分析流场，等高线和矢量图说明了模拟域中整个速度分布的流动特性以及滑块的涡流运动。提出了两种情况来研究滑块的速度分布。对于第一种情况，选取了滑块的前缘、顶缘和后缘七个横截面，以进一步识别水平和垂直速度分布的特征。第二种情况在块的前、顶和后边缘有五个特定位置。WC-MPS 模拟结果与实验数据之间获得了良好的一致性。块的顶部和后边缘。WC-MPS 模拟结果与实验数据之间获得了良好的一致性。块的顶部和后边缘。WC-MPS 模拟结果与实验数据之间获得了良好的一致性。