In this paper, the movement of the water surface with macroscopic particles during a dam break flow using the volume of fluid (VOF) methods and the DPM and MPM models were numerically simulated. The numerical simulation is based on the averaged Navier-Stokes equations, and was closed by the LES turbulent model, representing by the incompressible viscous fluid flow, equations for the phase and particle motion. The PISO numerical algorithm was chosen to solve this equation system numerically. The accuracy of the mathematical model and the selected numerical scheme were compared with experimental measurements on the destruction of the dam break problem. In test problem, the values were matched with measurement values and simulation data of other authors, as well as the improved model illustrated values close to the measured values. A matching was also made of the computational data with measured values using different turbulent models. One problem has been considered, the problem is water movement with macroscopic particles, through a heterogeneous terrain and a dam that has a hole. With the help of the problems, it was determined the flooding zones and the time of flooding evacuating people from dangerous areas.

在本文中，使用流体体积（VOF）方法以及DPM和MPM模型对大坝溃坝过程中宏观颗粒在水表面的运动进行了数值模拟。数值模拟基于平均的Navier-Stokes方程，并由LES湍流模型关闭，该模型由不可压缩的粘性流体流动，相和粒子运动方程表示。选择了PISO数值算法来对该方程组进行数值求解。将数学模型和所选数值方案的准确性与破坏坝破坏问题的实验测量结果进行了比较。在测试问题中，这些值与其他作者的测量值和仿真数据相匹配，并且改进的模型显示的值接近于测量值。还使用不同的湍流模型将计算数据与测量值进行匹配。已经考虑了一个问题，该问题是宏观粒子通过异质地形和有洞的水坝的水流。在这些问题的帮助下，确定了洪水泛滥区和洪水泛滥时间，使人们从危险地区撤离。