SPH-DEM-FEM耦合方法小河沟泥石流三维数值模拟灾害防治流固耦合分析泥石流是复杂的多相流体,其内部裹挟着大量的固态物质,冲击力巨大,常造成较大的人员伤亡与财产损失.由于泥石流活动多具有突发性,常常难以实时的进行观测,泥石流三维数值模型可以直观地再现泥石流流经沟道时的运动与堆积过程,因此,泥石流的三维数值模拟的研究...
介绍 章节 SPH-DEM-FEM耦合,sph模拟水,dem模拟磨料,fem为靶材 全局模型构建 高压水射流 AI FOR CAE访谈-王甲畏(Altair 工程总监)基于LS-dyna的小球入水仿真 QIEGE.k 课程章节 共2章节 (更新至2) 章节1: 后处理 免费 4分1秒 章节2: 建模 试看1分钟 ...
Numerical research on kerf characteristics of abrasive waterjet machining based on the SPH-DEM-FEM approach 来自 EBSCO 喜欢 0 阅读量: 214 作者:M Du,H Wang,H Dong,Y Guo,Y Ke 摘要: Abrasive waterjet machining has been widely used because of flexibility, but the cutting accuracy is difficult ...
Prof. Dr. Klaus-G. Hinzen | Universität zu Köln I was new to DEM simulation and had to complete a complex project in a short period of time. ThreeParticle was very easy to pick up and the outstanding expert support from BECKER 3D ensured that we were able to get the most out of...
本发明公开了一种基于SPHDEMFEM的沟道型泥石流沿程侵蚀的模拟方法,属于数值建模模拟领域,本发明使用SPHDEMFEM方法实现对沟道型泥石流沿程侵蚀下垫面物理过程的模拟,进而模拟泥石流的超流动现象.并且该方法在模拟泥石流侵蚀下垫面的过程中采用了无网格方法,可以有效应对下垫面破坏这种大变形问题,保证计算收敛,同时兼顾计算...
The SPH method was used to model the fluid phase of debris flow. The DEM was used to model the solid particle phase of debris flow, accounting for the collision–friction effect. The FEM was used to model the flexible barrier, accounting for connections and slipping in a realistic manner. ...
Discrete element method (DEM)Abrasive waterjet machining has been widely used because of flexibility, but the cutting accuracy is difficult to ensure due to the lack of dynamic analysis in the forming process of the kerf. In this paper, a coupled SPH-DEM-FEM method is proposed to predict the...
SPH particles represented fluid, DEM particles denoted solid immersed in fluid, and FEM elements represented the terrain and structures. The coupling analysis model was used to simulate the coupling contact of solid, liquid, and structures and to describe the entrainment behavior between solid and ...
Rock breaking behaviorMicro-structureMicro-mechanical propertiesIn this study, a two-dimensional SPH-FEM/DEM coupled model is developed to investigate rock breaking behavior under water jet impact based on the LS-DYNA software, where the SPH method is adopted to model the water jet and the FEM/...
Coupled SPH-DEM-FEM approachphysical modelSpillwaySki jumperosionPlunge pools are an economical means for discharging energy flows downstream of dams. However, the high energy discharge usually falls down from a considerable height, which leads to the phenomenon of erosion. The understanding of this ...