ABSTRACT

In this paper, the movement of the water surface with macroscopic particles during a dam break flow using the volume of fluid (VOF) methods, the discrete phase model (DPM) and macroscopic particle model (MPM) models were numerically simulated. To solve this equation system numerically, the PISO numerical algorithm was chosen. The accuracy of the 3D model and the selected numerical scheme were tested using some laboratory measurements on the destruction of the dam break problem. In the test problem, the values were matched with measurement values and simulation data of other authors. Furthermore, two problems were also considered, the first problem is dam break flow with macroscopic particles, and the second problem – water movement with macroscopic particles, through a heterogeneous terrain and a dam that has a hole. With the help of the problems, the flooding zones and the time of flooding evacuating people from dangerous areas were determined.

摘要

在本文中，使用流体体积（VOF）方法、离散相模型（DPM）和宏观粒子模型（MPM）模型对溃坝流过程中宏观颗粒水面的运动进行了数值模拟。为了数值求解该方程组，选择了 PISO 数值算法。3D 模型的准确性和选定的数值方案使用一些实验室测量来测试大坝破坏问题的破坏。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。此外，还考虑了两个问题，第一个问题是具有宏观粒子的溃坝流，第二个问题是具有宏观粒子的水流，通过异质地形和有孔的大坝。在问题的帮助下，