离散单元法

离散单元法中接触变化诱导的水头变化

Hydraulic Head Variations Due to Contact Changes in 2-D DEM

本文的研究结果表明，离散单元法在密相气固相流的数值模拟研究中具有广阔的前景。

The result indicates that DEM has wide prospects in numerical simulation of the dense solid-gas flow .

采用离散单元法（DEM）对胶结砂土力学特性进行模拟。

This paper presents a numerical investigation of cemented sand behaviours using the distinct element method ( DEM ) .

本文采用离散单元法（DEM）数值模拟与台架试验相结合的方法，系统研究了流化床内的气体、颗粒流动特性。

Gas-particles flow behaviors in fluidized beds are systemically studied in this dissertation , using discrete element method ( DEM ) and experimental approaches .

为模拟边坡破坏的运动形态，本文对山西太原钢铁公司峨口铁矿台阶边坡进行了离散单元法（DEM）分析，并采用了节理随机抽样模型。

Distinct Element Method ( DEM ) was applied to the analysis of the Slope at Eko Open-pit Mine on basis of a stochastic model of rock joints .

首先利用随机方法生成接近自然分布规律的沙床面，进而结合离散单元法（DEM）建立了粒-床碰撞数值模拟系统。

Firstly , a 2D mixed sand bed is prepared by stochastic method and the direct numerical simulation program is created based on Discrete Element Method ( DEM ) .

将离散单元法（DEM）拓展到三维流固两相流的数值模拟中，提出了颗粒群轨道柔性模型。

Let the discrete element method ( DEM ) be developed into the numerical simulation of 3D fluid-solid two-phased flows , the trajectory flexible model of particle group has been put forward .

采用离散单元法（DEM）建立了一种筒仓缩尺模型，该缩尺模型能够提供计算原型筒仓所需的重力场。

One kind of silo scale model which based on DEM was proposed , this scale model can provide the gravitational field which is needed in the prototype silo 's computation of lateral pressure .

在表面层，我们使用离散单元法（DEM）来捕捉流动细节；在静止层，我们使用高度场方法来提升计算效率。

The surface layer is simulated using discrete element method ( DEM ) to capture the detailed flowing behavior , while the invisible and static layer is represented by a height field for efficiency .

在假设气相为无黏不可压的条件下，求解了体积平均后的欧拉方程，并利用离散单元法（DEM）模拟了颗粒间的碰撞及颗粒与壁面间的碰撞过程。

The gas phase was assumed as inviscid and incompressible , and the volume-averaged Eulerian equations were solved . The particle-particle and particle-wall collisions were modelled using the discrete element method ( DEM ) .

结合离散单元法模拟，引入Ashton混合指数动态跟踪流化床内物料混合进程。

In the simulations of fluidized beds with discrete element method ( DEM ), Ashton mixing index was introduced to evaluate the dynamic mixing process of the particle system .

采用离散单元法（DEM）对流化床内煤颗粒燃烧过程中的传热过程进行了数值模拟。

The stimulation of heating behaviors of coal particles combustion in fluidized beds was carried out , in which the turbulence of gas phase was described by k - ε model and the solid phase by discrete element method ( DEM ) .

确定性方法包括刚体极限平衡法、有限元法和非连续性介质力学法（包括块体单元法，界面元法，离散单元法，DDA，拉格朗日元法，流形元法）等；

And the former includes rigid body limiting equilibrium , FEM and Discrete Medium Method ( block element method , Interface Stress Element , Discrete Element Method , DDA , Lagrange Element Method , Manifold Element Method etc. ) ;

利用DDEM（可变形离散单元法）原理和方法，研究了自然崩落法矿体崩落规律。

Based on the deformable discrete element method ( DDEM ), the caving law of natural block caving mining method is simulated by numerical method .

阐述了基于离散单元法的裂隙岩体渗流分析理论与方法，并结合具体实例用离散元分析软件对自由面液体流动开展数值模拟研究，验证了采用UDEC进行裂隙岩体渗流分析的可行性。

The seepage theories and methods of the fractured rock mass , basing on the distinct element method are expatiated . UDEC based on the Distinct Element Method is used to simulate the free surface fluid . 3 .

离散单元法与边界单元法的外部耦合计算

External coupling computation between distinct element method and boundary element method

用离散单元法模拟动筛跳汰过程的研究

Simulation Study on the Vibro-assisted Jigging Process by Discrete Element Method

应用离散单元法对二维流化床内流态进行数值模拟研究

Numerical study of 2D fluidized bed with the distinct element method

离散单元法的计算参数和求解方法选择

Determination of calculating parameters and solution methods of discrete element method

离散单元法在钢筋混凝土构件非线性分析的应用

Application of the DEM on the Nonlinear Analysis of Reinforced Concrete Members

三维离散单元法数值模拟中查找邻居元的一种新算法

A New Algorithm for Determining Neighborhood in Three-dimensional DEM Simulation

基于直接法节理网络模拟的三维离散单元法计算

3D discrete element method based on direct method of joint network simulation

三维离散单元法及其在边坡工程中的应用

Three-dimensional discrete element method and its applications in slope engineering

离散单元法在框架结构地震反应分析中的应用

Application of the DEM to the seismic response analysis of frame structures

盘石镍矿边坡稳定的离散单元法分析

Analysing Panshi Nickle Mine Slope Stability by Distinct Element Method

基于离散单元法粒形分选机关键技术研究

The Research for Key Technology Based on Dem of the Shape Separator

离散单元法在水库库岸滑坡稳定性分析中的应用

Discrete element method applied to stability analysis of landslides along reservoir shoreline

矿山边坡破坏机制的离散单元法模拟

Simulation of the Fallure Mechanism of Mining Slope by Discrete Element Method

离散单元法同拉格朗日元法及其在岩土力学中的应用

Discrete Element Method and Lagrangian Element Method and Their Applications in Geomechanics

离散单元法在土壤机械特性动态仿真中的应用进展

Development of simulation on mechanical dynamic behavior of soil by distinct element method