压电元件是离散颗粒、压电纤维、纤丝、换能器和致动器的形式。
The piezoelectric elements are in the form of discrete particles, piezoelectric fibers, filaments, transducers, and actuators.
在模型中，对液相采用欧拉法建立控制方程，对离散颗粒采用拉格朗日方法模拟。
In this model, governing equations of liquid were established with Eulerian approach, and discrete particle phase was simulated through Largrangian method.
在离散颗粒模型中，根据对颗粒间碰撞过程的处理方法的不同可分为确定性模型和随机性模型。
Discrete particle models can be classified into Deterministic method and Stochastic method in accounting for the particle collisions.
欧拉方法与拉格朗日方法分别用来处理气相场与离散的颗粒场。
Eulerian and Lagrangian methods are used to deal with gas-field and discrete particles respectively.
利用离散元方法对颗粒在振动给料机中的运动过程进行了数值研究。
The moving process of solid particles in a vibrating feeder is investigated by means of Discrete Element Method.
采用离散元方法，对喷动流化床内的颗粒混合特性进行了三维直接数值模拟。
Numerical simulations on particle mixing characteristics of spout-fluid bed were carried out in three dimensional based on discrete element method (DEM).
提出了采用基于颗粒接触力学原理的离散元法对耕作土壤动力学问题进行数值模拟的新思路。
A new simulation strategy using the Discrete Element Method (DEM) based on spherical particle contact mechanics to tillage soil dynamics was proposed.
对气固两相平板混合层流动，采用离散涡方法模拟气相场，轨道法跟踪颗粒的运动。
The gas and particle phase in the gas solid two phase plane mixing layers flow is numerically simulated using the discrete vortex method and trajectory method respectively.
双击式直接电动螺旋压力机是用于颗粒材料及离散材料成形的新型机器。
A double-strike direct electric drive screw press is a new machine used in particle and dispersed material forming.
为解决工程应用中三维流固两相流动力学建模的难题，提出了基于离散单元法(dem)的颗粒群轨道柔性模型。
For dynamics modeling of 3d fluid-solids two-phase flows in engineering problem it was brought forward of particles trajectory flexible model based on the discrete element method (DEM).
设计了一种隐式迭代方法求解颗粒能量方程，采用离散坐标方法计算炉膛内的辐射传热，完整地考虑颗粒能量方程中的辐射项。
An implicit iterative method was developed to solve particle energy equations with the discrete ordinate method used to obtain the radiative intensity distributions in a utility furnace.
在室内模型试验的基础上对加筋路堤进行了颗粒流离散元模拟分析。
The PFC numerical simulations (Discrete Element Method) were carried out on the base of the results of model test.
分析的具体行为的影响骨料级配，颗粒-弹簧模型离散元方法。
For analyzing the influence of aggregate gradation on the concrete behavior, the grain-spring model of discrete element method is presented.
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.
土壤是典型的松散介质，利用粘连的颗粒离散元模型模拟土壤聚团的行成及破裂一直是散体力学的热点之一。
Soil is a typical unconsolidated medium, and it is one of the most popular questions that the simulation for the generation and fracture of soil agglomerate with adhesive particle DEM.
采用离散相模型(DPM)，模拟固体颗粒运动轨迹，并对固体颗粒的除尘效率进行分析。
Discrete phase model (DPM) was applied to simulate the trajectory of solid particles, and the collection efficiency of solid particles was analyzed.
采用颗粒离散法编制出模拟颗粒流动的计算程序，系统地开展颗粒流动行为的数值模拟研究。
With the aid of liquid bridge model, the flow of wet particles in a silo is simulated to study the influence of liquid bridge on the flow patterns and mass flow rate.
梁–颗粒模型是在离散单元法基础上，结合有限单元法提出的用于模拟岩石类材料破坏过程的数值模型。
This numerical method used simulating damage and fragmentation phenomena of rock-like materials is presented on the basis of discrete element method (DEM) and lattice model.
离散力是由于粗颗粒相互之间的碰撞，以及粗颗粒与边壁之间的碰撞所造成的。 而粘土颗粒的絮凝作用形成絮团和絮网结构，它们对粗颗粒之间的碰撞起到缓冲作用。
The dispersive force caused by collision of coarse particles reduces to a great degress due to the cushioning effect of the flocculent structures formed by fine particles.
因此，限制效应改变了电子能水平，就好像一个装在盒子中的颗粒，这就是为什么电荷的离散特性会导致库仑阻塞效应的原因。
Thus, confinement effects modify electron energy levels, similar to a particle in a box, whereby Coulomb blockade effect arises as a consequence of the discrete nature of electric charges.
介绍了离散元（DEM）方法的基本原理、颗粒运动控制方程和颗粒相互作用力的数学模型。
The basic principles of DEM(discrete element model), and the equations of particle motion and models of particle particle interaction are introduced.
本论文的研究工作和成果如下：1。利用离散偶极子近似方法研究了不同形状纳米金属颗粒的光学性质；
The main research works and conclusions are as following:1. Optical properties of different shape metal nanoparticles are simulated by the discrete dipole approximation (DDA) method.
设计了一种隐式迭代方法求解颗粒能量方程，采用离散坐标方法计算炉膛内的辐射传热，完整地考虑颗粒能量方程中的辐射项。
On the basis of the control volume method, the discrete ordinate method (DOM) was used to solve the radiation heat transfer equation of the model.
以典型月壤的物理力学性质为参照标准，采用颗粒流程序PF C3D对月壤静力学特性进行了离散元模拟研究。
According to its physical mechanics properties, the statics characteristic of lunar soil is studied using DEM software PFC3D.
以典型月壤的物理力学性质为参照标准，采用颗粒流程序PF C3D对月壤静力学特性进行了离散元模拟研究。
According to its physical mechanics properties, the statics characteristic of lunar soil is studied using DEM software PFC3D.
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