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particle-in-cell method
相关语句
  质点网格法
     A LOCAL MIXING PARTICLE-IN-CELL METHOD FOR FLUID-PARTICLE MULTIPHASE FLOWS
     多相流局部混合型质点网格法
短句来源
     The difficult of remeshing can be effectively avoided. As one of the innovative spatial discretization methods, the material point method (MPM) is an extension of the Particle-in-Cell method and FLIP to solve the problems in solid mechanics. The essential idea of MPM is to take advantages of both the Eurlerian and Lagrangian methods, and the numerical precision and efficiency are satisfied in some problems.
     物质点法(Material Point Method,简称MPM法)作为无网格法之一,它是在质点网格法(PIC)和FLIP基础上发展起来的一种新数值计算方法,MPM法将拉格朗日法和欧拉法的优势结合在一起,计算精度和效率相对较高。
短句来源
  “particle-in-cell method”译为未确定词的双语例句
     One-dimensional particle-in-Cell method (PIC) simulation code is developed and the relation between ion noise and phase distortion was obtained.
     采用小信号近似,从理论上推导出了速调管离子噪声与相位畸变关系的表达式,表明微波管相位噪声直接来源于管内离子量的变化。
短句来源
     These applications are two dimensional electromagnetic plasma with particle-in-cell method program (2D-CIC),tracer interfaces moving grid method program (YGX), three-dimensional supersonic complex base flowfields numerical simulation (TXD). The experiment results can validate the conclusions we got.
     这三个程序分别是二维电磁等离子体粒子云网格法程序(2D-CIC),跟踪界面活动网格法程序(YGX),三维高超声速流场数值模拟程序(TXD)。
短句来源
     2. Characteristics of ion noise in the PPM TWT and the Klystron have been discussed by means of a hybrid model. One-dimensioned Particle-in-Cell method (PIC) simulation code is developed and the relation between ion noise and phase distortion was obtain.
     2.采用一维混合模型,将电子束用包络方程描述,正离子用离散的一维宏粒子代替,采用粒子模拟方法研究了行波管与速调管的离子噪声问题,得到了离子噪声的图像,研究了电子束电流、电压、聚焦磁场以及残余背景气体对离子噪声的影响。
短句来源
     The particle-in-cell method uses two representations of the continuum,one based on a collection of material points and the other based on a computational grid.
     交映法要用到两种离散方法:一种基于物质点集,另一种基于计算网格.
短句来源
     SCALABILITY ANALYSIS OF THE 2-D ELECTROMAGNETIC PLASMA PARALLEL PROGRAM USING PARTICLE-IN-CELL METHOD
     二维电磁等离子体粒子云网格法并行程序的可扩展性分析
短句来源
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  相似匹配句对
     particle size;
     粒径大小;
     The Energy of the H-particle
     H粒子的能量
短句来源
     particle irradiation.
     α粒子照射细胞诱发的基因突变存在旁效应;
短句来源
     Molding of Particle Pallet
     刨花模压托盘工艺
短句来源
     Prevent the particle from polluting;
     防止微粒污染;
短句来源
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  particle-in-cell method
A one-dimensional nonstationary model of relativistic carcinotrons, combines the particle-in-cell method in the description of an electron beam with a single-wave approximation in the description of the dynamics of an electromagnetic field.
      
The theory is confirmed by the results of numerical modeling by the Particle-In-Cell method.
      
The particle-in-cell method is used to solve the kinetic equation.
      
As a numerical model we used the electrostatic "particle-in-cell" method supplemented by the Emmert model for a bulk source and the algorithm of binary Coulomb collisions using the Monte Carlo method.
      
As a numerical model we use the electrostatic "particle-in-cell" method supplemented with the Emmert model for a bulk source and the algorithm of binary Coulomb collisions using a Monte Carlo method.
      
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This view paper is devoted to the difference methods for conservation law, including conservative scheme, monotone schemes Lax scheme, Lax-Wendroff scheme Engquist-Osher scheme, hybrid switch method and prediction-correction method. In the continuation of this paper, we shall introduce scheme, Glimm scheme, Chorin scheme, artificial viscosity method,artificial compression method, characteristic method and particle in cell method.

本文介绍守恒型双曲型方程组的各种差分方法,例如守恒型格式和单调格式,Lax格式,Lax-Wendroff型格式,和 Engquist-Osher格式,混合开关方法和预估校正格式。在本文的续篇中,将介绍基于Riemann 间断分解的 格式,Glimm格式和 chorin的随机选取法,人工粘性法和人工压缩法,特征型格式,质点法和涡团法。

This paper is a continuation of [1], we introduce several differencemethods for conservation law, including scheme, Glimm scheme,Chorin method, artificial viscosity method, artificial compression method, characteristic method and particle in cell method.

本文是[1]的继续,将介绍守恒型双曲型方程组的各种其他差分方法,例如基于Riemann间断分解的 格式,Glimm格式和Chorin的随机选取法,人工粘性法,人工压缩法,特征型格式和质点法等。本文所采用的记号同[1]。 本文继续介绍下列守恒型双曲型方程组的差分方法

An extension to solid mechanics of the FLIP particle-in-cell method is presented. The particle-in-cell method uses two representations of the continuum,one based on a collection of material points and the other based on a computational grid. The material points are followed throughout the deformation of a solid and provide a Lagrangian description that is not subject to mesh tangling. This feature permits constitutive equations with history-dependent variables to be applied at these material points...

An extension to solid mechanics of the FLIP particle-in-cell method is presented. The particle-in-cell method uses two representations of the continuum,one based on a collection of material points and the other based on a computational grid. The material points are followed throughout the deformation of a solid and provide a Lagrangian description that is not subject to mesh tangling. This feature permits constitutive equations with history-dependent variables to be applied at these material points with no requirement for mapping the history parameters from one point to another. A grid, which can be held fixed or adapted as the need arises, is used to determine spatial gradients. Since the grid is used as an updated Lagrangian frame, the nonlinear convection term associated with Eulerian formulations does not appear. With the use of maps between material points and he grid, the advantages of both Eulerian and Lagrangian schemes are utilized. No-slip impact between bodies, inelastic, elastic, or rigid, is handled automatically by the method without resorting to a special contact algorithm.

本文将物质点网格交替映照算法(以下简称交映法)(FILP Particle-incell me-thod)扩展应用于固体力学.交映法要用到两种离散方法:一种基于物质点集,另一种基于计算网格.物质点的运动表示了固体变形的全过程并用拉格郎日观点描述.物质点的运动不受网格畸变的影响.由于这些算法特点,那些带有路径或时间变量的本构方程可直接在物质点上求解,而不必在不同的计算点上对那些变量作映照计算或各种变换.网格形状可依计算方便而定,网格可以是固定的,也可以是变化的,它通常用于确定空间梯度.因为基于网格的计算是一种动态的拉格朗E算法,因此与欧拉公式相应的非线性对流项将不再出现.利用物质点和网格之间的映照,欧拉和拉格郎日两种方法的优点就都利用了.非弹性、弹性或刚体间无滑移的碰撞可以用此方法自动处理而不必求助于特殊的算法.

 
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